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2026, 42(2): 217-226
doi: 10.11862/CJIC.20250219
Abstract:
In this study, using 3, 5-di(3′, 5′-dicarboxylphenyl)-1H-1, 2, 4-triazole (H4L) as ligands, a gadolinia-based organic framework complex {[GdNa(L)(H2O)3]·2H2O}n (Gd-Na-MOF) was successfully designed and synthesized by hydrothermal method. The structure and properties were systematically characterized and tested by techniques such as single-crystal X-ray diffraction, powder X-ray diffraction, thermogravimetric analysis, infrared spectroscopy, and fluorescence spectroscopy. The results indicate that this complex has a unique 3D structure, excellent thermal stability, and outstanding luminescent performance. Based on its luminescent properties, a polymer-embedding method was employed to fabricate the Gd-Na-MOF into a flexible, washable composite fluorescent film, Gd-Na-MOF@PMMA/BMA (PMMA=polymethyl methacrylate, BMA=butyl methacrylate). This fluorescent film exhibited highly sensitive recognition capability for tyramine, with a low detection limit of 1.66 μmol·L-1. It was used for the detection of tyramine in bananas, with a recovery rate of 96.92%-100.26%.
In this study, using 3, 5-di(3′, 5′-dicarboxylphenyl)-1H-1, 2, 4-triazole (H4L) as ligands, a gadolinia-based organic framework complex {[GdNa(L)(H2O)3]·2H2O}n (Gd-Na-MOF) was successfully designed and synthesized by hydrothermal method. The structure and properties were systematically characterized and tested by techniques such as single-crystal X-ray diffraction, powder X-ray diffraction, thermogravimetric analysis, infrared spectroscopy, and fluorescence spectroscopy. The results indicate that this complex has a unique 3D structure, excellent thermal stability, and outstanding luminescent performance. Based on its luminescent properties, a polymer-embedding method was employed to fabricate the Gd-Na-MOF into a flexible, washable composite fluorescent film, Gd-Na-MOF@PMMA/BMA (PMMA=polymethyl methacrylate, BMA=butyl methacrylate). This fluorescent film exhibited highly sensitive recognition capability for tyramine, with a low detection limit of 1.66 μmol·L-1. It was used for the detection of tyramine in bananas, with a recovery rate of 96.92%-100.26%.
2026, 42(2): 331-339
doi: 10.11862/CJIC.20250260
Abstract:
Under solvothermal conditions, 1, 4-naphthalenedicarboxylic acid (H2ndc) and 9, 9′-dihexyl-2, 7-di(pyridin-4-yl)fluorene (hfdp) reacted with Co2+ ions and Cd2+ ions to form two coordination polymers, [Co(hfdp)(ndc)(H2O)]·DMA}n (1) and {[Cd(hfdp)(ndc)(H2O)]·DMA}n (2), respectively (DMA=N, N-dimethylacetamide). Single-crystal X-ray diffraction analyses showed that both complexes 1 and 2 contain similar structures. Topological analysis indicates that complexes 1 and 2 have a {44·62} planar structure. In addition, both complexes reveal good thermal stability and fluorescence sensing performance. They exhibited good sensitivity and selectivity towards 2, 4, 6-trinitrophenol (TNP) by fluorescent quenching. The limits of detection of 1 and 2 for TNP were 0.107 and 0.327 μmol·L-1, respectively.
Under solvothermal conditions, 1, 4-naphthalenedicarboxylic acid (H2ndc) and 9, 9′-dihexyl-2, 7-di(pyridin-4-yl)fluorene (hfdp) reacted with Co2+ ions and Cd2+ ions to form two coordination polymers, [Co(hfdp)(ndc)(H2O)]·DMA}n (1) and {[Cd(hfdp)(ndc)(H2O)]·DMA}n (2), respectively (DMA=N, N-dimethylacetamide). Single-crystal X-ray diffraction analyses showed that both complexes 1 and 2 contain similar structures. Topological analysis indicates that complexes 1 and 2 have a {44·62} planar structure. In addition, both complexes reveal good thermal stability and fluorescence sensing performance. They exhibited good sensitivity and selectivity towards 2, 4, 6-trinitrophenol (TNP) by fluorescent quenching. The limits of detection of 1 and 2 for TNP were 0.107 and 0.327 μmol·L-1, respectively.
2026, 42(2): 340-354
doi: 10.11862/CJIC.20250226
Abstract:
Four distinct coordination polymers (CPs) were successfully synthesized by altering solvent types and adjusting ligand concentrations, and their crystal structures were investigated. [Co(L)(FDCA)(H2O)2]·0.5H2O (1) was synthesized as a 2D structure using Co(Ⅱ) as the metal source, methanol-water (4∶6, V/V) as the solvent, and specific concentrations of 2, 5-furandicarboxylic acid (H2FDCA) and 1, 3, 5-triimidazole benzene (L). Adjusting to pure water and lowering the concentration of L yielded the 1D chain structure of [Co(HL)2(H2O)2](FDCA)2·6H2O (2). Using Cu(Ⅱ) as the metal source, methanol/water (9∶1, V/V) as the solvent, and specific concentrations of L and H2FDCA, the 1D chain structure of [Cu(L)(FDCA)(H2O)]·2H2O (3) was synthesized. Upon increasing the concentrations of L and H2FDCA, and switching the solvent to pure water, the 1D chain structure of [Cu(HL)2(H2O)2](FDCA)2·6H2O (4) was obtained. This shows that changing the solvent and ligand concentrations can affect the structural changes of CPs. In addition, the solid-state photoluminescence of CPs 1-4 at room temperature was studied, and their morphological changes were observed via scanning electron microscopy. Density functional theory calculations revealed that the negative charge concentrates on the O and N atoms of the ligand, facilitating ligand-metal ion coordination.
Four distinct coordination polymers (CPs) were successfully synthesized by altering solvent types and adjusting ligand concentrations, and their crystal structures were investigated. [Co(L)(FDCA)(H2O)2]·0.5H2O (1) was synthesized as a 2D structure using Co(Ⅱ) as the metal source, methanol-water (4∶6, V/V) as the solvent, and specific concentrations of 2, 5-furandicarboxylic acid (H2FDCA) and 1, 3, 5-triimidazole benzene (L). Adjusting to pure water and lowering the concentration of L yielded the 1D chain structure of [Co(HL)2(H2O)2](FDCA)2·6H2O (2). Using Cu(Ⅱ) as the metal source, methanol/water (9∶1, V/V) as the solvent, and specific concentrations of L and H2FDCA, the 1D chain structure of [Cu(L)(FDCA)(H2O)]·2H2O (3) was synthesized. Upon increasing the concentrations of L and H2FDCA, and switching the solvent to pure water, the 1D chain structure of [Cu(HL)2(H2O)2](FDCA)2·6H2O (4) was obtained. This shows that changing the solvent and ligand concentrations can affect the structural changes of CPs. In addition, the solid-state photoluminescence of CPs 1-4 at room temperature was studied, and their morphological changes were observed via scanning electron microscopy. Density functional theory calculations revealed that the negative charge concentrates on the O and N atoms of the ligand, facilitating ligand-metal ion coordination.
2026, 42(2): 355-364
doi: 10.11862/CJIC.20250253
Abstract:
This paper reports the preparation of three di-iron complexes containing a thiazole moiety. Esterification of complex [Fe2(CO)6(μ-SCH2CH(CH2OH)S)] (1) with 4-methylthiazole-5-carboxylic acid gave the corresponding ester [Fe2(CO)6(μ-tedt)] (2), where tedt=SCH2CH(CH2OOC(5-C3HNSCH3))S. Further reactions of complex 2 with tri(p-tolyl)phosphine (tp) or tris(4-fluorophenyl)phosphine (fp) gave the phosphine-substituted derivatives [Fe2(CO)5(tp)(μ-tedt)] (3) and [Fe2(CO)5(fp)(μ-tedt)] (4). The structures of the newly prepared complexes were elucidated by elemental analysis, NMR, IR, and X-ray photoelectron spectroscopy. Moreover, single-crystal X-ray diffraction analysis confirmed their molecular structures, showing that they contain a di-iron core ligated by a bridged dithiolate bearing a thiazole moiety and terminal carbonyls. The electrochemical and electrocatalytic proton reduction were probed by cyclic voltammetry, revealing that three complexes can catalyze the reduction of protons to H2 under the electrochemical conditions. For comparison, complex 4 possessed the best efficiency with a turnover frequency of 23.5 s-1 at 10 mmol·L-1 HOAc concentration. In addition, the fungicidal activity of these complexes was also investigated in this study.
This paper reports the preparation of three di-iron complexes containing a thiazole moiety. Esterification of complex [Fe2(CO)6(μ-SCH2CH(CH2OH)S)] (1) with 4-methylthiazole-5-carboxylic acid gave the corresponding ester [Fe2(CO)6(μ-tedt)] (2), where tedt=SCH2CH(CH2OOC(5-C3HNSCH3))S. Further reactions of complex 2 with tri(p-tolyl)phosphine (tp) or tris(4-fluorophenyl)phosphine (fp) gave the phosphine-substituted derivatives [Fe2(CO)5(tp)(μ-tedt)] (3) and [Fe2(CO)5(fp)(μ-tedt)] (4). The structures of the newly prepared complexes were elucidated by elemental analysis, NMR, IR, and X-ray photoelectron spectroscopy. Moreover, single-crystal X-ray diffraction analysis confirmed their molecular structures, showing that they contain a di-iron core ligated by a bridged dithiolate bearing a thiazole moiety and terminal carbonyls. The electrochemical and electrocatalytic proton reduction were probed by cyclic voltammetry, revealing that three complexes can catalyze the reduction of protons to H2 under the electrochemical conditions. For comparison, complex 4 possessed the best efficiency with a turnover frequency of 23.5 s-1 at 10 mmol·L-1 HOAc concentration. In addition, the fungicidal activity of these complexes was also investigated in this study.
2026, 42(2): 365-374
doi: 10.11862/CJIC.20250222
Abstract:
A series of blue and blue-green Ir(Ⅲ) complexes has been investigated theoretically to explore their electronic structures, photophysical properties, efficiency roll-off effect, and thermal activation delayed fluorescence (TADF) properties. All calculations were performed using density functional theory (DFT) and time-dependent density functional theory (TDDFT). Calculations for electronic structures, frontier molecular orbital characteristics (which determine the efficiency roll-off effect of the complexes), and photophysical properties were conducted using the Gaussian 09 software package. The calculation of spin-orbit coupling matrix elements <T|HSOC|S>, which determine the TADF properties of the complexes, was performed using the ORCA software package. The calculation results show that the auxiliary ligand tetraphenylimidodiphosphinate (tpip), a strong electron-withdrawing group, can mitigate the efficiency roll-off effect of the complex. Furthermore, TADF is observed in one of the designed complexes, (F3Phppy)2Ir(tpip), where F3Phppy=2-[4-(2,4,6-trifluorophenyl)phenyl] pyridine.
A series of blue and blue-green Ir(Ⅲ) complexes has been investigated theoretically to explore their electronic structures, photophysical properties, efficiency roll-off effect, and thermal activation delayed fluorescence (TADF) properties. All calculations were performed using density functional theory (DFT) and time-dependent density functional theory (TDDFT). Calculations for electronic structures, frontier molecular orbital characteristics (which determine the efficiency roll-off effect of the complexes), and photophysical properties were conducted using the Gaussian 09 software package. The calculation of spin-orbit coupling matrix elements <T|HSOC|S>, which determine the TADF properties of the complexes, was performed using the ORCA software package. The calculation results show that the auxiliary ligand tetraphenylimidodiphosphinate (tpip), a strong electron-withdrawing group, can mitigate the efficiency roll-off effect of the complex. Furthermore, TADF is observed in one of the designed complexes, (F3Phppy)2Ir(tpip), where F3Phppy=2-[4-(2,4,6-trifluorophenyl)phenyl] pyridine.
2026, 42(2): 375-386
doi: 10.11862/CJIC.20250213
Abstract:
Herein, 3-aminopropyltriethoxysilane (APTES) was used to modify F-containing silica slag (SS) by simple grafting and served as a multifunctional barrier layer. The amino group (—NH2) in the amino-modified SS (NH2-SS) forms ligand bonds or hydrogen bonds with sulfur ions in lithium polysulfides (LiPSs), thus inhibiting the shuttle effect. Electrochemical analyses demonstrated that lithium-sulfur (Li-S) batteries employing the NH2-SS interlayer exhibited discharge specific capacities of 1 048 and 789 mAh·g-1 at 0.2C and 2C, respectively, and even at 4C, the initial discharge specific capacity remained at 590 mAh·g-1, outperforming the Li-S battery with unmodified SS as the interlayer.
Herein, 3-aminopropyltriethoxysilane (APTES) was used to modify F-containing silica slag (SS) by simple grafting and served as a multifunctional barrier layer. The amino group (—NH2) in the amino-modified SS (NH2-SS) forms ligand bonds or hydrogen bonds with sulfur ions in lithium polysulfides (LiPSs), thus inhibiting the shuttle effect. Electrochemical analyses demonstrated that lithium-sulfur (Li-S) batteries employing the NH2-SS interlayer exhibited discharge specific capacities of 1 048 and 789 mAh·g-1 at 0.2C and 2C, respectively, and even at 4C, the initial discharge specific capacity remained at 590 mAh·g-1, outperforming the Li-S battery with unmodified SS as the interlayer.
2026, 42(2): 387-397
doi: 10.11862/CJIC.20250211
Abstract:
Herein, manganese (Mn)-doped poly(1, 5-diaminonaphthalene) (PN) electrode material (Mn@PN) was synthesized via chemical oxidative polymerization. The material′s distinctive vesicular architecture enables rapid ion transport while maintaining the structural stability of the electrode under continuous charge-discharge cycles. Electrochemical characterization under a three-electrode system revealed exceptional rate capability: Mn@PN delivered an ultrahigh specific capacitance of 10 318 F·g-1 at a low current density of 3 A·g-1 and retained 9 415 F·g-1 (91.2% retention compared to the value at 3 A·g-1) even at an ultrahigh current density of 50 A·g-1. Moreover, the material exhibited 97.4% capacitance retention after 9 000 cycles at 30 A·g-1, corresponding with a low capacitance decay rate of 0.003‰ per cycle, significantly outperforming conventional conductive polymers like polyaniline (PANI). An asymmetric supercapacitor assembled with Mn@PN as the positive electrode (Mn@PN||AC) achieved an energy density of 328 Wh·kg-1 at 15 A·g-1 and retained 80.7% of its initial specific capacitance after 4 000 cycles at 20 A·g-1.
Herein, manganese (Mn)-doped poly(1, 5-diaminonaphthalene) (PN) electrode material (Mn@PN) was synthesized via chemical oxidative polymerization. The material′s distinctive vesicular architecture enables rapid ion transport while maintaining the structural stability of the electrode under continuous charge-discharge cycles. Electrochemical characterization under a three-electrode system revealed exceptional rate capability: Mn@PN delivered an ultrahigh specific capacitance of 10 318 F·g-1 at a low current density of 3 A·g-1 and retained 9 415 F·g-1 (91.2% retention compared to the value at 3 A·g-1) even at an ultrahigh current density of 50 A·g-1. Moreover, the material exhibited 97.4% capacitance retention after 9 000 cycles at 30 A·g-1, corresponding with a low capacitance decay rate of 0.003‰ per cycle, significantly outperforming conventional conductive polymers like polyaniline (PANI). An asymmetric supercapacitor assembled with Mn@PN as the positive electrode (Mn@PN||AC) achieved an energy density of 328 Wh·kg-1 at 15 A·g-1 and retained 80.7% of its initial specific capacitance after 4 000 cycles at 20 A·g-1.
2026, 42(2): 398-412
doi: 10.11862/CJIC.20250207
Abstract:
Herein, antibacterial silver-doped fluorescent carbon dots (Ag-CDs) were synthesized through a stepwise hydrothermal method, with polyethyleneimine (PEI), citric acid (CA), and silver nitrate (AgNO3) serving as precursors. The applicability and antimicrobial efficacy of these nanomaterials were systematically investigated for metal ion sensing. Experimental evidence demonstrated that the Ag-CDs exhibited a pronounced fluorescence quenching response toward ferric ions (Fe3+), enabling their quantitative determination via a linear concentration-dependent relationship. These Ag-CDs exhibited significant inhibitory effects on biofilm growth and disruption for both Escherichia coli and Staphylococcus aureus. Mechanism investigations indicate that Ag-CDs induced the death of Escherichia coli and Pseudomonas aeruginosa by disrupting their bacterial morphology and structure, triggering the generation of intracellular reactive oxygen species (ROS), and impairing their antioxidant defense system.
Herein, antibacterial silver-doped fluorescent carbon dots (Ag-CDs) were synthesized through a stepwise hydrothermal method, with polyethyleneimine (PEI), citric acid (CA), and silver nitrate (AgNO3) serving as precursors. The applicability and antimicrobial efficacy of these nanomaterials were systematically investigated for metal ion sensing. Experimental evidence demonstrated that the Ag-CDs exhibited a pronounced fluorescence quenching response toward ferric ions (Fe3+), enabling their quantitative determination via a linear concentration-dependent relationship. These Ag-CDs exhibited significant inhibitory effects on biofilm growth and disruption for both Escherichia coli and Staphylococcus aureus. Mechanism investigations indicate that Ag-CDs induced the death of Escherichia coli and Pseudomonas aeruginosa by disrupting their bacterial morphology and structure, triggering the generation of intracellular reactive oxygen species (ROS), and impairing their antioxidant defense system.
2026, 42(2): 413-427
doi: 10.11862/CJIC.20250183
Abstract:
An upconversion nanoparticle (NaErF4: Yb/Tm@NaLuF4: Yb@NaLuF4: Nd/Yb@NaLuF4, noted as UC) was designed, emitting strong red light by 808 nm laser. The mesoporous silica (mSiO2) shell co-doped with chlorin e6 (Ce6) and triethoxy(1H, 1H, 2H, 2H-nonafluorohexyl)silane (TFS) was coated on the outer layer of UC, and then a layer of HKUST-1 shell was coated. The obtained nanocomposite UC@Ce6/TFS@mSiO2@HKUST-1 (noted as UCTSH) was used for the synergistic treatment of chemodynamic therapy (CDT) and photodynamic therapy (PDT). Interestingly, the nanostructures can specifically re lease Cu2+ in the acidic tumor microenvironment. Cu2+ reacts with excess hydrogen peroxide (H2O2) in the tumor microenvironment to form cytotoxic hydroxyl radical. Secondly, Ce6, with the action of oxygen-carrying TFS, selectively produces a large amount of singlet oxygen by 808 nm laser irradiation. UCTSH can enhance the anti-tumor effects of PDT and CDT by increasing the production level of reactive oxygen species, without causing damage to normal cells.
An upconversion nanoparticle (NaErF4: Yb/Tm@NaLuF4: Yb@NaLuF4: Nd/Yb@NaLuF4, noted as UC) was designed, emitting strong red light by 808 nm laser. The mesoporous silica (mSiO2) shell co-doped with chlorin e6 (Ce6) and triethoxy(1H, 1H, 2H, 2H-nonafluorohexyl)silane (TFS) was coated on the outer layer of UC, and then a layer of HKUST-1 shell was coated. The obtained nanocomposite UC@Ce6/TFS@mSiO2@HKUST-1 (noted as UCTSH) was used for the synergistic treatment of chemodynamic therapy (CDT) and photodynamic therapy (PDT). Interestingly, the nanostructures can specifically re lease Cu2+ in the acidic tumor microenvironment. Cu2+ reacts with excess hydrogen peroxide (H2O2) in the tumor microenvironment to form cytotoxic hydroxyl radical. Secondly, Ce6, with the action of oxygen-carrying TFS, selectively produces a large amount of singlet oxygen by 808 nm laser irradiation. UCTSH can enhance the anti-tumor effects of PDT and CDT by increasing the production level of reactive oxygen species, without causing damage to normal cells.
2026, 42(2): 428-438
doi: 10.11862/CJIC.20250123
Abstract:
Chitosan (CTS) was grafted onto the surface of amino-functionalized silver chloride silicon dioxide (AgCl@SiO2-NH2) cores to obtain AgCl@SiO2/CTS hybrid nanoparticles. The as-obtained AgCl@SiO2/CTS nanoparticles were chlorinated by NaClO solution to get AgCl@SiO2/CTS-based chloramine nano-hybrid materials, denoted as AgCl@SiO2/CTS-Cl. A transmission electron microscope was used to observe the morphology of the as-prepared samples AgCl@SiO2/CTS and AgCl@SiO2/CTS-Cl. At the same time, an X-ray diffractometer and an infrared spectroscope were utilized to characterize their crystal and chemical structures. Besides, ζ potentials were measured to elucidate the surface modification of AgCl nanoparticles by —NH2, the antibacterial mechanism of AgCl@SiO2/CTS-Cl was investigated by scanning electron microscopy, and Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) were used as the to-be-tested strains to evaluate the antimicrobial activity of samples AgCl@SiO2/CTS and AgCl@SiO2/CTS-Cl. Findings demonstrate that sample AgCl@SiO2/CTS exhibits a chain-like structure ascribed to the interaction between —NH2, and each AgCl@SiO2/CTS hybrid nanoparticle contains several AgCl cores. In the meantime, sample AgCl@SiO2/CTS-Cl exhibits excellent antibacterial activity against E. coli and S. aureus, which is attributed to the synergistic antibacterial effect of Ag+ and Cl-. Sample AgCl@SiO2/CTS-Cl with a dosage of 640.00 μg·mL-1 could completely kill the two kinds of tested bacteria in 12 h of incubation; it retains a high antibacterial efficiency even after 10 cycles of antibacterial tests.
Chitosan (CTS) was grafted onto the surface of amino-functionalized silver chloride silicon dioxide (AgCl@SiO2-NH2) cores to obtain AgCl@SiO2/CTS hybrid nanoparticles. The as-obtained AgCl@SiO2/CTS nanoparticles were chlorinated by NaClO solution to get AgCl@SiO2/CTS-based chloramine nano-hybrid materials, denoted as AgCl@SiO2/CTS-Cl. A transmission electron microscope was used to observe the morphology of the as-prepared samples AgCl@SiO2/CTS and AgCl@SiO2/CTS-Cl. At the same time, an X-ray diffractometer and an infrared spectroscope were utilized to characterize their crystal and chemical structures. Besides, ζ potentials were measured to elucidate the surface modification of AgCl nanoparticles by —NH2, the antibacterial mechanism of AgCl@SiO2/CTS-Cl was investigated by scanning electron microscopy, and Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) were used as the to-be-tested strains to evaluate the antimicrobial activity of samples AgCl@SiO2/CTS and AgCl@SiO2/CTS-Cl. Findings demonstrate that sample AgCl@SiO2/CTS exhibits a chain-like structure ascribed to the interaction between —NH2, and each AgCl@SiO2/CTS hybrid nanoparticle contains several AgCl cores. In the meantime, sample AgCl@SiO2/CTS-Cl exhibits excellent antibacterial activity against E. coli and S. aureus, which is attributed to the synergistic antibacterial effect of Ag+ and Cl-. Sample AgCl@SiO2/CTS-Cl with a dosage of 640.00 μg·mL-1 could completely kill the two kinds of tested bacteria in 12 h of incubation; it retains a high antibacterial efficiency even after 10 cycles of antibacterial tests.
2026, 42(2): 227-236
doi: 10.11862/CJIC.20250279
Abstract:
采用六氟磷酸铵(NH4PF6)短链配体对CsPbI2Br钙钛矿量子点进行表面修饰，在钙钛矿吸光层与碳电极之间构建多功能界面层。该方法有效钝化了钙钛矿层的表面缺陷，协同优化了界面形貌。基于该策略的碳基全无机钙钛矿太阳能电池实现了缺陷密度的降低与非辐射复合的抑制，光电转换效率从11.55%显著提升至13.23%，并且未封装器件在低湿环境中储存600 h后仍保持82%的初始效率。
采用六氟磷酸铵(NH4PF6)短链配体对CsPbI2Br钙钛矿量子点进行表面修饰，在钙钛矿吸光层与碳电极之间构建多功能界面层。该方法有效钝化了钙钛矿层的表面缺陷，协同优化了界面形貌。基于该策略的碳基全无机钙钛矿太阳能电池实现了缺陷密度的降低与非辐射复合的抑制，光电转换效率从11.55%显著提升至13.23%，并且未封装器件在低湿环境中储存600 h后仍保持82%的初始效率。
2026, 42(2): 237-246
doi: 10.11862/CJIC.20250257
Abstract:
采用水热法耦合气相沉积磷化法，在泡沫镍(NF)上负载NiFeP/NiFcDCA(FcDCA=1，1′-二茂铁二羧酸)异质结催化剂。受益于层状堆叠的非均相纳米结构、丰富的活性位点和高效的电荷转移速率，磷化温度为350 ℃时制备的NiFeP/NiFcDCA@NF-350在1 mol·L-1 KOH+0.33 mol·L-1尿素溶液中表现出优异的尿素氧化反应(UOR)活性，其仅需1.332和1.368 V(vs RHE)的超低电位即可分别达到100和500 mA·cm-2的电流密度；其在50 mA·cm-2的电流密度下经50 h稳定性测试后性能衰减仅为0.54%，表现出优异的催化选择性和良好的稳定性。
采用水热法耦合气相沉积磷化法，在泡沫镍(NF)上负载NiFeP/NiFcDCA(FcDCA=1，1′-二茂铁二羧酸)异质结催化剂。受益于层状堆叠的非均相纳米结构、丰富的活性位点和高效的电荷转移速率，磷化温度为350 ℃时制备的NiFeP/NiFcDCA@NF-350在1 mol·L-1 KOH+0.33 mol·L-1尿素溶液中表现出优异的尿素氧化反应(UOR)活性，其仅需1.332和1.368 V(vs RHE)的超低电位即可分别达到100和500 mA·cm-2的电流密度；其在50 mA·cm-2的电流密度下经50 h稳定性测试后性能衰减仅为0.54%，表现出优异的催化选择性和良好的稳定性。
2026, 42(2): 247-262
doi: 10.11862/CJIC.20250255
Abstract:
采用水热法成功将镁(Mg)引入ZSM-5分子筛骨架结构中，系统考察了Mg含量对分子筛孔的结构、酸性质、骨架铝(framework aluminum，AlF)分布及催化生物乙醇制丙烯(bioethanol to propylene，ETP)反应性能的影响。结果表明，随着Mg含量的增加，分子筛介孔体积显著增大，结晶度略有下降。氨气程序升温脱附(NH3-TPD)和吡啶红外(Py-IR)分析结果显示，Mg的引入有效降低了分子筛总酸量和强酸强度，同时提高了Brønsted酸的比例。固体核磁共振(27Al MAS NMR)和紫外可见漫反射光谱(UV-Vis DRS)表明，Mg的引入促使AlF从通道交叉处向正弦或直通道迁移，并减少了铝对(aluminum pair，Alpair)的形成。催化反应评价结果显示，适量Mg改性的分子筛(2-MgHZ5)表现出最优的ETP性能，丙烯选择性从改性前的ZSM-5(HZ5)的26.8%提高至29.5%，丙烯选择性维持在不低于10%的时间更是从HZ5的15 h显著延长至30 h，这归因于其适中的酸强度、丰富的介孔结构以及Al分布的优化有效抑制了芳烃循环和积碳生成，促进了烯烃-环戊二烯循环路径。
采用水热法成功将镁(Mg)引入ZSM-5分子筛骨架结构中，系统考察了Mg含量对分子筛孔的结构、酸性质、骨架铝(framework aluminum，AlF)分布及催化生物乙醇制丙烯(bioethanol to propylene，ETP)反应性能的影响。结果表明，随着Mg含量的增加，分子筛介孔体积显著增大，结晶度略有下降。氨气程序升温脱附(NH3-TPD)和吡啶红外(Py-IR)分析结果显示，Mg的引入有效降低了分子筛总酸量和强酸强度，同时提高了Brønsted酸的比例。固体核磁共振(27Al MAS NMR)和紫外可见漫反射光谱(UV-Vis DRS)表明，Mg的引入促使AlF从通道交叉处向正弦或直通道迁移，并减少了铝对(aluminum pair，Alpair)的形成。催化反应评价结果显示，适量Mg改性的分子筛(2-MgHZ5)表现出最优的ETP性能，丙烯选择性从改性前的ZSM-5(HZ5)的26.8%提高至29.5%，丙烯选择性维持在不低于10%的时间更是从HZ5的15 h显著延长至30 h，这归因于其适中的酸强度、丰富的介孔结构以及Al分布的优化有效抑制了芳烃循环和积碳生成，促进了烯烃-环戊二烯循环路径。
2026, 42(2): 263-270
doi: 10.11862/CJIC.20250236
Abstract:
采用溶胶-凝胶法成功合成La2(1-x)MgZrO6:2xSm3+(x=0.01~0.11)双钙钛矿结构橙红色荧光粉。X射线衍射(XRD)和扫描电子显微镜(SEM)分析表明，所制备的样品为双钙钛矿结构，Sm3+离子均匀分布于La2MgZrO6基质中，未观察到杂质相。在405 nm近紫外光激发下，样品展现出典型的Sm3+离子特征发射光谱。当Sm3+掺杂浓度为0.03时，荧光强度达到最大值，随后出现明显的浓度猝灭现象。最佳组分样品的CIE色坐标为(0.536 1，0.452 6)，相对色温为2 177 K。此外，该荧光粉表现出良好的热稳定性：在473 K高温下，其发光强度仍可保持室温强度的81%，其热猝灭活化能为0.156 5 eV，进一步证实了其优异的热稳定性。
采用溶胶-凝胶法成功合成La2(1-x)MgZrO6:2xSm3+(x=0.01~0.11)双钙钛矿结构橙红色荧光粉。X射线衍射(XRD)和扫描电子显微镜(SEM)分析表明，所制备的样品为双钙钛矿结构，Sm3+离子均匀分布于La2MgZrO6基质中，未观察到杂质相。在405 nm近紫外光激发下，样品展现出典型的Sm3+离子特征发射光谱。当Sm3+掺杂浓度为0.03时，荧光强度达到最大值，随后出现明显的浓度猝灭现象。最佳组分样品的CIE色坐标为(0.536 1，0.452 6)，相对色温为2 177 K。此外，该荧光粉表现出良好的热稳定性：在473 K高温下，其发光强度仍可保持室温强度的81%，其热猝灭活化能为0.156 5 eV，进一步证实了其优异的热稳定性。
2026, 42(2): 271-283
doi: 10.11862/CJIC.20250230
Abstract:
开发具有肿瘤选择性的金属药物，在发挥抗增殖活性的同时，规避生理毒副作用成为白血病治疗的重要难题。本研究通过钌/铱金属前体和二氢乳清脱氢酶(DHODH)抑制剂CS2进行酰胺化连接，开发了2种用于诱导铁死亡和加强细胞对铁死亡敏感性的新型配合物CS2-Ru和CS2-Ir。CS2-Ru、CS2-Ir通过诱导人急性早幼粒白血病细胞(NB-4细胞)内活性氧(ROS)水平升高和线粒体膜电位去极化，破坏细胞内氧化还原平衡。此外，基于配体CS2的特性，配合物仅对NB-4细胞表现出优异的选择性，通过GPX4/DHODH(GPX4=谷胱甘肽过氧化物酶4)双通路抑制，诱导NB-4细胞内脂质过氧化物异常积累至致死阈值，以及增加NB-4细胞对铁死亡的敏感性。
开发具有肿瘤选择性的金属药物，在发挥抗增殖活性的同时，规避生理毒副作用成为白血病治疗的重要难题。本研究通过钌/铱金属前体和二氢乳清脱氢酶(DHODH)抑制剂CS2进行酰胺化连接，开发了2种用于诱导铁死亡和加强细胞对铁死亡敏感性的新型配合物CS2-Ru和CS2-Ir。CS2-Ru、CS2-Ir通过诱导人急性早幼粒白血病细胞(NB-4细胞)内活性氧(ROS)水平升高和线粒体膜电位去极化，破坏细胞内氧化还原平衡。此外，基于配体CS2的特性，配合物仅对NB-4细胞表现出优异的选择性，通过GPX4/DHODH(GPX4=谷胱甘肽过氧化物酶4)双通路抑制，诱导NB-4细胞内脂质过氧化物异常积累至致死阈值，以及增加NB-4细胞对铁死亡的敏感性。
2026, 42(2): 284-296
doi: 10.11862/CJIC.20250171
Abstract:
通过高温固相法成功合成了一系列Pr3+掺杂的Cd3Al2Ge3O12橙色荧光粉，并引入碱金属离子(Li+、Na+、K+)进行电荷补偿。利用X射线衍射(XRD)和荧光光谱仪等表征手段，分别对样品的晶体结构、发光性能及热稳定性进行研究。结果表明，Pr3+的掺杂没有改变基质的晶体结构，碱金属的掺杂也未引起杂相。样品在450 nm激发光作用下，发射光谱主峰位于613 nm处。比较不同掺杂浓度Cd3-xAl2Ge3O12: xPr3+(x=0.01~0.09)的荧光发射谱，发现Pr3+的最佳掺杂浓度为0.03。碱金属离子掺杂策略有效改善了材料的发光性能，其中Li+、Na+、K+掺杂系列荧光粉的荧光强度和寿命均得到有效提升，均优于未掺杂样品，且不同碱金属离子掺杂的增强效果大小依次为Li+、Na+、K+。Li+掺杂样品的发光强度最佳，是未掺杂体系的1.58倍。此外，探究了电荷补偿后的热稳定性，在393 K时，Li+补偿后的Cd2.94Al2Ge3O12: 0.03Pr3+，0.03Li+样品的发光强度为293 K时的72.70%。CIE色坐标确认了该荧光粉的发射均位于橙光区域。进一步利用最佳样品制作了白光发光二极管，其CIE色坐标为(0.368 2，0.300 1)，位于白光圈内。
通过高温固相法成功合成了一系列Pr3+掺杂的Cd3Al2Ge3O12橙色荧光粉，并引入碱金属离子(Li+、Na+、K+)进行电荷补偿。利用X射线衍射(XRD)和荧光光谱仪等表征手段，分别对样品的晶体结构、发光性能及热稳定性进行研究。结果表明，Pr3+的掺杂没有改变基质的晶体结构，碱金属的掺杂也未引起杂相。样品在450 nm激发光作用下，发射光谱主峰位于613 nm处。比较不同掺杂浓度Cd3-xAl2Ge3O12: xPr3+(x=0.01~0.09)的荧光发射谱，发现Pr3+的最佳掺杂浓度为0.03。碱金属离子掺杂策略有效改善了材料的发光性能，其中Li+、Na+、K+掺杂系列荧光粉的荧光强度和寿命均得到有效提升，均优于未掺杂样品，且不同碱金属离子掺杂的增强效果大小依次为Li+、Na+、K+。Li+掺杂样品的发光强度最佳，是未掺杂体系的1.58倍。此外，探究了电荷补偿后的热稳定性，在393 K时，Li+补偿后的Cd2.94Al2Ge3O12: 0.03Pr3+，0.03Li+样品的发光强度为293 K时的72.70%。CIE色坐标确认了该荧光粉的发射均位于橙光区域。进一步利用最佳样品制作了白光发光二极管，其CIE色坐标为(0.368 2，0.300 1)，位于白光圈内。
2026, 42(2): 297-308
doi: 10.11862/CJIC.20250214
Abstract:
设计并合成了一种基于脲基配位作用和Si—O键断裂的新型双功能荧光探针1-甲基-2，4-双[2-(叔丁基二甲硅烷氧基)乙基脲基]苯(T1)，用于高选择性检测环境及生物样品中的Cr(Ⅵ)和F-。实验结果表明，T1在二甲基亚砜/水(DMSO/H2O，1∶1，V/V)溶剂体系中表现出优异的识别性能。基于脲基的配位作用，该探针对Cr(Ⅵ)的检测在395 nm处呈现荧光猝灭效应，检测限达4.70×10-7 mol·L-1，不受其他金属离子干扰；对F-的识别依赖于Si—O键的断裂机制，在320 nm处表现出显著荧光增强，检测限低至7.07×10-8 mol·L-1，在多种阴离子共存条件下也能保持高选择性。光谱分析表明，T1与Cr(Ⅵ)以1∶2的物质的量之比结合(结合常数Ka=2.62×104 L·mol-1)，与F-通过Si—O键断裂以1∶2的物质的量之比定量反应。该探针在0~20.00 μmol·L-1范围内呈现良好的线性响应。
设计并合成了一种基于脲基配位作用和Si—O键断裂的新型双功能荧光探针1-甲基-2，4-双[2-(叔丁基二甲硅烷氧基)乙基脲基]苯(T1)，用于高选择性检测环境及生物样品中的Cr(Ⅵ)和F-。实验结果表明，T1在二甲基亚砜/水(DMSO/H2O，1∶1，V/V)溶剂体系中表现出优异的识别性能。基于脲基的配位作用，该探针对Cr(Ⅵ)的检测在395 nm处呈现荧光猝灭效应，检测限达4.70×10-7 mol·L-1，不受其他金属离子干扰；对F-的识别依赖于Si—O键的断裂机制，在320 nm处表现出显著荧光增强，检测限低至7.07×10-8 mol·L-1，在多种阴离子共存条件下也能保持高选择性。光谱分析表明，T1与Cr(Ⅵ)以1∶2的物质的量之比结合(结合常数Ka=2.62×104 L·mol-1)，与F-通过Si—O键断裂以1∶2的物质的量之比定量反应。该探针在0~20.00 μmol·L-1范围内呈现良好的线性响应。
2026, 42(2): 309-316
doi: 10.11862/CJIC.20250212
Abstract:
以2，5-二溴噻吩-3，4-二羧酸(H2L)、4，4′-联吡啶(4，4′-bipy)为配体，分别与六水合硝酸钴、四水合乙酸锰通过溶剂热合成法制备了2种过渡金属有机骨架：{[Co2(L)2(4，4′-bipy)2(H2O)4]·H2O}n (Co-MOF)和{[Mn(L)(4，4′-bipy)0.5(H2O)2]·H2O}n (Mn-MOF)。通过单晶X射线衍射、粉末X射线衍射、元素分析、红外光谱、紫外可见光谱、荧光光谱、热重分析方法表征其结构及谱学性质。结果表明，Co-MOF的Co(Ⅱ)间以4，4′-bipy桥联，经氢键相连延展成二维层状结构，最后以层间氢键堆叠成三维结构。Mn-MOF的Mn(Ⅱ)与4，4′-bipy及L2-配体配位，以配位键延伸形成蜂窝状的三维结构。
以2，5-二溴噻吩-3，4-二羧酸(H2L)、4，4′-联吡啶(4，4′-bipy)为配体，分别与六水合硝酸钴、四水合乙酸锰通过溶剂热合成法制备了2种过渡金属有机骨架：{[Co2(L)2(4，4′-bipy)2(H2O)4]·H2O}n (Co-MOF)和{[Mn(L)(4，4′-bipy)0.5(H2O)2]·H2O}n (Mn-MOF)。通过单晶X射线衍射、粉末X射线衍射、元素分析、红外光谱、紫外可见光谱、荧光光谱、热重分析方法表征其结构及谱学性质。结果表明，Co-MOF的Co(Ⅱ)间以4，4′-bipy桥联，经氢键相连延展成二维层状结构，最后以层间氢键堆叠成三维结构。Mn-MOF的Mn(Ⅱ)与4，4′-bipy及L2-配体配位，以配位键延伸形成蜂窝状的三维结构。
2026, 42(2): 317-330
doi: 10.11862/CJIC.20250199
Abstract:
为提升氯氧铋/硅藻土(BiOCl/D)的可见光催化性能，引入了碳量子点(CQDs)，以温和水解法成功构建了CQDs/BiOCl/D三元复合体系，并研究了其在可见光下对水中抗生素环丙沙星(CIP)的光降解性能。结果表明，当CQDs加入量为催化剂总质量的3%时，所制备的3%CQDs/BiOCl/D在90 min可见光照射后，对CIP的降解率为90.1%，同时发现在80 min照射后，CIP的抑菌活性可消除。捕获剂实验和电子顺磁共振(EPR)结果证实，3%CQDs/BiOCl/D光降解反应中主要活性物种为空穴(h+)、羟基自由基(·OH)和超氧自由基(·O2-)。通过超高效液相色谱-质谱联用(UPLC-MS/MS)数据确认了CIP降解过程的中间产物并推测其降解路径。CQDs的上转换荧光性能、催化剂的稳态和瞬态荧光光谱及其相应的光电化学测试证明，3%CQDs/BiOCl/D光催化性能提升归功于CQDs的上转换作用、电子接收性能、转移性能和光热效应以及CQDs、硅藻土与BiOCl之间的协同作用。
为提升氯氧铋/硅藻土(BiOCl/D)的可见光催化性能，引入了碳量子点(CQDs)，以温和水解法成功构建了CQDs/BiOCl/D三元复合体系，并研究了其在可见光下对水中抗生素环丙沙星(CIP)的光降解性能。结果表明，当CQDs加入量为催化剂总质量的3%时，所制备的3%CQDs/BiOCl/D在90 min可见光照射后，对CIP的降解率为90.1%，同时发现在80 min照射后，CIP的抑菌活性可消除。捕获剂实验和电子顺磁共振(EPR)结果证实，3%CQDs/BiOCl/D光降解反应中主要活性物种为空穴(h+)、羟基自由基(·OH)和超氧自由基(·O2-)。通过超高效液相色谱-质谱联用(UPLC-MS/MS)数据确认了CIP降解过程的中间产物并推测其降解路径。CQDs的上转换荧光性能、催化剂的稳态和瞬态荧光光谱及其相应的光电化学测试证明，3%CQDs/BiOCl/D光催化性能提升归功于CQDs的上转换作用、电子接收性能、转移性能和光热效应以及CQDs、硅藻土与BiOCl之间的协同作用。
