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2025, 41(6): 1049-1057
doi: 10.11862/CJIC.20240456
Abstract:
圆偏振发光(circularly polarized luminescence，CPL)材料因其独特的手性光学特性，在3D显示、生物成像、数据存储和自旋光电子器件等领域展现出广泛的应用潜力，近年来备受科研人员关注。然而，当前的研究主要集中在紫外/可见光区，具有近红外CPL特性的分子材料却非常稀少。相较于可见光波段，近红外光具有穿透能力强、背景散射小等优点，在生物成像、探测和加密通信等领域具有显著优势。作为靛蓝的异构体，β-异靛蓝具有丰富的结构修饰和配位模式，为开发近红外CPL分子材料提供了理想的骨架。本文系统阐述基于β-异靛蓝骨架的CPL分子材料的有趣发现过程，以及如何在此基础上简单高效地实现近红外CPL分子材料的制备。最后，展望基于β-异靛蓝骨架的近红外CPL分子材料的未来发展，预测该骨架将成为近红外CPL领域一类重要的明星骨架材料。
圆偏振发光(circularly polarized luminescence，CPL)材料因其独特的手性光学特性，在3D显示、生物成像、数据存储和自旋光电子器件等领域展现出广泛的应用潜力，近年来备受科研人员关注。然而，当前的研究主要集中在紫外/可见光区，具有近红外CPL特性的分子材料却非常稀少。相较于可见光波段，近红外光具有穿透能力强、背景散射小等优点，在生物成像、探测和加密通信等领域具有显著优势。作为靛蓝的异构体，β-异靛蓝具有丰富的结构修饰和配位模式，为开发近红外CPL分子材料提供了理想的骨架。本文系统阐述基于β-异靛蓝骨架的CPL分子材料的有趣发现过程，以及如何在此基础上简单高效地实现近红外CPL分子材料的制备。最后，展望基于β-异靛蓝骨架的近红外CPL分子材料的未来发展，预测该骨架将成为近红外CPL领域一类重要的明星骨架材料。
2025, 41(6): 1058-1067
doi: 10.11862/CJIC.20240418
Abstract:
采用溶剂热法合成了一系列Cs2NaBiCl6: Mn2+与Cs2Na1-xKxBiCl6: Mn2+荧光粉，并通过理论计算与实验表征相结合的方式系统研究了其晶体结构和发光性能。结果表明，Cs2NaBiCl6: Mn2+体系表现出以[BiCl6]3-八面体为中心的局域激发吸收近紫外光，随着Mn2+掺杂浓度的增加，[BiCl6]3-向Mn2+发生能量转移，从而促进了Mn2+的d轨道之间的电子跃迁并产生橙黄色发光。进一步引入K+后，Cs2NaBiCl6: Mn2+发光强度和颜色纯度得到提升。实验证实K+的引入有效调谐了Cs2NaBiCl6: Mn2+的态密度组成，促进了[BiCl6]3-的 1S0→3P1, 2电子跃迁，增强了Cs2NaBiCl6: Mn2+的发光强度，并利用CIE软件计算得到其色纯度为93.58%。最终结果表明，Cs2Na1-xKxBiCl6: Mn2+具有较强的橙黄色发光特性。
采用溶剂热法合成了一系列Cs2NaBiCl6: Mn2+与Cs2Na1-xKxBiCl6: Mn2+荧光粉，并通过理论计算与实验表征相结合的方式系统研究了其晶体结构和发光性能。结果表明，Cs2NaBiCl6: Mn2+体系表现出以[BiCl6]3-八面体为中心的局域激发吸收近紫外光，随着Mn2+掺杂浓度的增加，[BiCl6]3-向Mn2+发生能量转移，从而促进了Mn2+的d轨道之间的电子跃迁并产生橙黄色发光。进一步引入K+后，Cs2NaBiCl6: Mn2+发光强度和颜色纯度得到提升。实验证实K+的引入有效调谐了Cs2NaBiCl6: Mn2+的态密度组成，促进了[BiCl6]3-的 1S0→3P1, 2电子跃迁，增强了Cs2NaBiCl6: Mn2+的发光强度，并利用CIE软件计算得到其色纯度为93.58%。最终结果表明，Cs2Na1-xKxBiCl6: Mn2+具有较强的橙黄色发光特性。
2025, 41(6): 1068-1082
doi: 10.11862/CJIC.20250048
Abstract:
通过溶剂热-电沉积法成功制备了一种具有丰富活性位点的镍铜合金/氧化锌/泡沫镍(NiCu/ZnO/NF)异质界面结构复合催化剂，并对其形貌结构、物相构成、析氢反应(HER)性能、光热性能和全解水性能进行了测试和分析。研究表明：NiCu/ZnO/NF具有优异的HER催化性能，在10 mA·cm-2的电流密度下所需的过电位仅为25 mV。高效的催化活性可能是由于NiCu/ZnO异质界面结构的协同效应加快了电子转移速率和优化了HER过程。此外，NiCu/ZnO/NF还表现出了优异的光热转换性能，在光照条件下其HER过电位显著降低，在10 mA·cm-2的电流密度下过电位降低至8 mV。此外，将NiCu/ZnO/NF集成到自设计的电解槽-热电装置进行全解水反应，其在50 mA·cm-2电流密度时的槽电压低至0.88 V。
通过溶剂热-电沉积法成功制备了一种具有丰富活性位点的镍铜合金/氧化锌/泡沫镍(NiCu/ZnO/NF)异质界面结构复合催化剂，并对其形貌结构、物相构成、析氢反应(HER)性能、光热性能和全解水性能进行了测试和分析。研究表明：NiCu/ZnO/NF具有优异的HER催化性能，在10 mA·cm-2的电流密度下所需的过电位仅为25 mV。高效的催化活性可能是由于NiCu/ZnO异质界面结构的协同效应加快了电子转移速率和优化了HER过程。此外，NiCu/ZnO/NF还表现出了优异的光热转换性能，在光照条件下其HER过电位显著降低，在10 mA·cm-2的电流密度下过电位降低至8 mV。此外，将NiCu/ZnO/NF集成到自设计的电解槽-热电装置进行全解水反应，其在50 mA·cm-2电流密度时的槽电压低至0.88 V。
2025, 41(6): 1083-1093
doi: 10.11862/CJIC.20250008
Abstract:
通过一步电沉积法在碳布(CC)表面构建了镍钴双金属磷化物(NiCoP)与聚吡咯(PPy)复合的NiCoP/PPy/CC材料，并探究了吡咯的添加量对材料形貌、结构以及性能的影响。当吡咯的浓度为3 mol·L-1时制备的NiCoP/PPy/CC-3电极的电化学性能最佳，其在三电极体系中表现出较好的电化学性能，在4.0 mA·cm-2的电流密度下，该电极的面积比电容为1 068.11 mF·cm-2，对应的质量比电容为508.62 F·g-1，并且在8.0 mA·cm-2的电流密度下进行6 000次循环后的电容保持率为90.1%。将该电极应用于柔性非对称超级电容器中，该柔性器件可实现180°的弯折，并且在8.0 mA·cm-2的电流密度下进行10 000次循环后，器件的初始比电容仍保持88.6%。此外，将2个非对称超级电容器串联可以有效地点亮发光二极管(LED)。
通过一步电沉积法在碳布(CC)表面构建了镍钴双金属磷化物(NiCoP)与聚吡咯(PPy)复合的NiCoP/PPy/CC材料，并探究了吡咯的添加量对材料形貌、结构以及性能的影响。当吡咯的浓度为3 mol·L-1时制备的NiCoP/PPy/CC-3电极的电化学性能最佳，其在三电极体系中表现出较好的电化学性能，在4.0 mA·cm-2的电流密度下，该电极的面积比电容为1 068.11 mF·cm-2，对应的质量比电容为508.62 F·g-1，并且在8.0 mA·cm-2的电流密度下进行6 000次循环后的电容保持率为90.1%。将该电极应用于柔性非对称超级电容器中，该柔性器件可实现180°的弯折，并且在8.0 mA·cm-2的电流密度下进行10 000次循环后，器件的初始比电容仍保持88.6%。此外，将2个非对称超级电容器串联可以有效地点亮发光二极管(LED)。
2025, 41(6): 1094-1100
doi: 10.11862/CJIC.20240464
Abstract:
以2，5-二溴对苯二甲酸(H2BDC-Br2)为桥联配体，采用快速合成法，与HfCl4进行自组装，成功制备了一个与传统UiO-66结构相同的三维多孔铪基金属有机框架(UiO-66-Br2-Hf) (1)。首先通过热重分析(TGA)、粉末X射线衍射(PXRD)等表征手段证实了 1的卓越的结构稳定性。进而系统地考察了其在水分子辅助下的质子导电能力，发现其质子电导率与温度和相对湿度(RH)呈正相关关系，且在100 ℃和98% RH下，其质子电导率高达3.11×10-3 S·cm-1。最后，结合结构分析、氮气和水蒸气吸附测试以及活化能计算等，对其质子导电机制进行了探究。
以2，5-二溴对苯二甲酸(H2BDC-Br2)为桥联配体，采用快速合成法，与HfCl4进行自组装，成功制备了一个与传统UiO-66结构相同的三维多孔铪基金属有机框架(UiO-66-Br2-Hf) (1)。首先通过热重分析(TGA)、粉末X射线衍射(PXRD)等表征手段证实了 1的卓越的结构稳定性。进而系统地考察了其在水分子辅助下的质子导电能力，发现其质子电导率与温度和相对湿度(RH)呈正相关关系，且在100 ℃和98% RH下，其质子电导率高达3.11×10-3 S·cm-1。最后，结合结构分析、氮气和水蒸气吸附测试以及活化能计算等，对其质子导电机制进行了探究。
2025, 41(6): 1101-1111
doi: 10.11862/CJIC.20240441
Abstract:
基于不同单金属氧化物对草酸锂(Li2C2O4，LCO)分解的促进效果，以CuO-Mn2O3混合物为前驱体，采用简便的固相烧结法合成了一系列Mn、Cu物质的量之比(x)不同的CuMnxO1+1.5x双金属氧化物催化剂。通过X射线衍射(XRD)、X射线光电子能谱(XPS)、N2吸附-脱附等温线和扫描电子显微镜(SEM)等方法表征了材料的结构组成与微观形貌，并探究了其对LCO电化学活性的影响规律。结果表明，在0.05C和2.5~4.5 V下，以CuMn1.1O2.7为催化剂时LCO的充电比容量可达404.7 mAh·g-1，同时脱锂电位降低至4.44 V，首次库仑效率仅为1.3%，可作为正极补锂添加剂应用于磷酸铁锂(LFP)体系；此外，采用密度泛函理论(DFT)计算揭示了LCO分解的速率控制步骤和催化剂的作用机制。将一定量的LCO/CuMn1.1O2.7补锂剂添加至LFP浆料中制作成扣式半电池，并对其进行电化学性能测试，结果表明，在最佳补锂剂含量下，相应LFP电极的首次充电比容量为205.9 mAh·g-1，LCO的实际利用率可达74.1%，而且补锂剂的添加能改善LFP的循环性能。
基于不同单金属氧化物对草酸锂(Li2C2O4，LCO)分解的促进效果，以CuO-Mn2O3混合物为前驱体，采用简便的固相烧结法合成了一系列Mn、Cu物质的量之比(x)不同的CuMnxO1+1.5x双金属氧化物催化剂。通过X射线衍射(XRD)、X射线光电子能谱(XPS)、N2吸附-脱附等温线和扫描电子显微镜(SEM)等方法表征了材料的结构组成与微观形貌，并探究了其对LCO电化学活性的影响规律。结果表明，在0.05C和2.5~4.5 V下，以CuMn1.1O2.7为催化剂时LCO的充电比容量可达404.7 mAh·g-1，同时脱锂电位降低至4.44 V，首次库仑效率仅为1.3%，可作为正极补锂添加剂应用于磷酸铁锂(LFP)体系；此外，采用密度泛函理论(DFT)计算揭示了LCO分解的速率控制步骤和催化剂的作用机制。将一定量的LCO/CuMn1.1O2.7补锂剂添加至LFP浆料中制作成扣式半电池，并对其进行电化学性能测试，结果表明，在最佳补锂剂含量下，相应LFP电极的首次充电比容量为205.9 mAh·g-1，LCO的实际利用率可达74.1%，而且补锂剂的添加能改善LFP的循环性能。
2025, 41(6): 1112-1122
doi: 10.11862/CJIC.20240423
Abstract:
本研究开发了一例近红外荧光探针NSHD，该探针由商业原料经一步合成得到。NSHD以荧光-比色双模式快速响应过氧亚硝酸根阴离子(ONOO-)，不受生命体其他常见金属离子、活性物种和生理范围pH变化的干扰。在0~20 μmol·L-1范围内，探针荧光强度与ONOO-浓度间存在良好的线性关系。质谱测试数据表明ONOO-使探针发生氧化裂解，导致荧光发射和颜色变化。此外，该探针具有良好的生物相容性，在活HeLa细胞(人类宫颈癌细胞)中实现了对胞内ONOO-的成像。
本研究开发了一例近红外荧光探针NSHD，该探针由商业原料经一步合成得到。NSHD以荧光-比色双模式快速响应过氧亚硝酸根阴离子(ONOO-)，不受生命体其他常见金属离子、活性物种和生理范围pH变化的干扰。在0~20 μmol·L-1范围内，探针荧光强度与ONOO-浓度间存在良好的线性关系。质谱测试数据表明ONOO-使探针发生氧化裂解，导致荧光发射和颜色变化。此外，该探针具有良好的生物相容性，在活HeLa细胞(人类宫颈癌细胞)中实现了对胞内ONOO-的成像。
2025, 41(6): 1123-1130
doi: 10.11862/CJIC.20240440
Abstract:
采用离子束辅助沉积(IBAD)技术制备氮掺杂CeO2薄膜并对其光催化性能进行了研究。采用X射线衍射(XRD)、X射线光电子能谱(XPS)、扫描电子显微镜(SEM)、紫外可见吸收光谱(UV-Vis)对制备的薄膜进行了表征。实验结果表明，通过IBAD技术制备氮掺杂CeO2薄膜的方法可以实现体相均匀氮掺杂，且掺氮量远高于传统氮掺杂方法。SEM结果表明，氮离子束轰击作用并没有改变CeO2的晶体结构，但是会改变CeO2的结晶度和晶格参数，同时，样品表面变得更光滑、粒径更小。另外，该方法使CeO2薄膜的可见光吸收边从370 nm红移到480 nm，增加了其可见光吸收性能。光催化降解亚甲蓝测试结果显示，在可见光下催化120 min时，溶液中的亚甲蓝降解率已经高于90%，并在6次循环稳定性测试后降解率保持在86%左右，显示出良好的光催化稳定性。
采用离子束辅助沉积(IBAD)技术制备氮掺杂CeO2薄膜并对其光催化性能进行了研究。采用X射线衍射(XRD)、X射线光电子能谱(XPS)、扫描电子显微镜(SEM)、紫外可见吸收光谱(UV-Vis)对制备的薄膜进行了表征。实验结果表明，通过IBAD技术制备氮掺杂CeO2薄膜的方法可以实现体相均匀氮掺杂，且掺氮量远高于传统氮掺杂方法。SEM结果表明，氮离子束轰击作用并没有改变CeO2的晶体结构，但是会改变CeO2的结晶度和晶格参数，同时，样品表面变得更光滑、粒径更小。另外，该方法使CeO2薄膜的可见光吸收边从370 nm红移到480 nm，增加了其可见光吸收性能。光催化降解亚甲蓝测试结果显示，在可见光下催化120 min时，溶液中的亚甲蓝降解率已经高于90%，并在6次循环稳定性测试后降解率保持在86%左右，显示出良好的光催化稳定性。
2025, 41(6): 1131-1140
doi: 10.11862/CJIC.20240419
Abstract:
使用绿色溶剂水溶解CsBr，以达到提高CsBr溶解度、简化CsPbBr3钙钛矿太阳能电池(perovskite solar cells)制备工艺和提高薄膜质量的目的。结果表明，在停留时间为5 s、退火温度为250 ℃的条件下，旋涂1遍质量浓度为250 mg·mL-1的CsBr水溶液所制备的电池性能最优，实现了1.64 V的最高开路电压(open circuit voltage，VOC)，短路电流密度(short-circuit current，JSC)为7.55 mA·cm-2，填充因子(fill factor，FF)为85.46%，光电转换效率(photoelectric conversion efficiency，PCE)为10.51%。
使用绿色溶剂水溶解CsBr，以达到提高CsBr溶解度、简化CsPbBr3钙钛矿太阳能电池(perovskite solar cells)制备工艺和提高薄膜质量的目的。结果表明，在停留时间为5 s、退火温度为250 ℃的条件下，旋涂1遍质量浓度为250 mg·mL-1的CsBr水溶液所制备的电池性能最优，实现了1.64 V的最高开路电压(open circuit voltage，VOC)，短路电流密度(short-circuit current，JSC)为7.55 mA·cm-2，填充因子(fill factor，FF)为85.46%，光电转换效率(photoelectric conversion efficiency，PCE)为10.51%。
2025, 41(6): 1141-1150
doi: 10.11862/CJIC.20240258
Abstract:
以双齿席夫碱5-[(4-ethylbenzylidene)amino]quinolin-8-ol(HL1)、5-{[(1，1′-biphenyl)-4-ylmethylene]amino}quinolin-8-ol(HL2)为配体，与Sm(acac)3·2H2O反应，通过溶剂热法，设计与构筑了2例结构新颖的Sm4配合物[Sm4(L1)6(acac)4(μ3-OH)2]·CH3CN (1)和[Sm4(L2)6(acac)4(μ3-OH)2]·CH3CN (2)，其中Hacac=乙酰丙酮。单晶X射线衍射分析表明：配合物1和2结构相似，其结构主要由4个Sm(Ⅲ)离子、4个acac-、6个L1-或L2-以及2个μ3-OH-组成。中心的4个Sm(Ⅲ)离子通过6个μ2-O和2个μ3-OH-相互连接，形成一个菱形的Sm4核心。采用紫外光谱法、循环伏安法和荧光光谱法研究了配合物 1和 2与小牛胸腺DNA(CTDNA)之间的相互作用。研究表明，配合物1和2与CTDNA的相互作用是插入结合。
以双齿席夫碱5-[(4-ethylbenzylidene)amino]quinolin-8-ol(HL1)、5-{[(1，1′-biphenyl)-4-ylmethylene]amino}quinolin-8-ol(HL2)为配体，与Sm(acac)3·2H2O反应，通过溶剂热法，设计与构筑了2例结构新颖的Sm4配合物[Sm4(L1)6(acac)4(μ3-OH)2]·CH3CN (1)和[Sm4(L2)6(acac)4(μ3-OH)2]·CH3CN (2)，其中Hacac=乙酰丙酮。单晶X射线衍射分析表明：配合物1和2结构相似，其结构主要由4个Sm(Ⅲ)离子、4个acac-、6个L1-或L2-以及2个μ3-OH-组成。中心的4个Sm(Ⅲ)离子通过6个μ2-O和2个μ3-OH-相互连接，形成一个菱形的Sm4核心。采用紫外光谱法、循环伏安法和荧光光谱法研究了配合物 1和 2与小牛胸腺DNA(CTDNA)之间的相互作用。研究表明，配合物1和2与CTDNA的相互作用是插入结合。
2025, 41(6): 1151-1161
doi: 10.11862/CJIC.20240202
Abstract:
设计了一种绿色的再生废纸纤维素(RCewp)与氧化还原石墨烯(rGO)复合的薄膜(RCewp/rGO)并将其作为活性材料，其在7 000 s的循环中稳定输出的最大峰值电流为10 μA，且在100 Ω负载下的输出功率最高可达2.34 μW·cm-2。同时，研究表明金属集流体对湿气发电的影响显著，其中不锈钢集流体在70%的相对湿度(RH)条件下，产生的开路电压最大可达53 mV，因为集流体的氧化还原反应在湿气作用下增强了电流和电压的输出。此外，该湿气发电薄膜与镁空气电池结合时表现出优异的性能：在50%RH下，RCewp/rGO电极能够产生高达1.37 V的开路电压(Voc)和0.132 mA·cm-2的短路电流密度；当RH升高至90%时，开路电压进一步增大至1.57 V，短路电流密度达到64.2 mA·cm-2。而对于未与湿气发电薄膜相连的Mg-滤纸-Ni电极，其输出功率和短路电流密度仅为3.76×10-4 mW和0.306 μA·cm-2。
设计了一种绿色的再生废纸纤维素(RCewp)与氧化还原石墨烯(rGO)复合的薄膜(RCewp/rGO)并将其作为活性材料，其在7 000 s的循环中稳定输出的最大峰值电流为10 μA，且在100 Ω负载下的输出功率最高可达2.34 μW·cm-2。同时，研究表明金属集流体对湿气发电的影响显著，其中不锈钢集流体在70%的相对湿度(RH)条件下，产生的开路电压最大可达53 mV，因为集流体的氧化还原反应在湿气作用下增强了电流和电压的输出。此外，该湿气发电薄膜与镁空气电池结合时表现出优异的性能：在50%RH下，RCewp/rGO电极能够产生高达1.37 V的开路电压(Voc)和0.132 mA·cm-2的短路电流密度；当RH升高至90%时，开路电压进一步增大至1.57 V，短路电流密度达到64.2 mA·cm-2。而对于未与湿气发电薄膜相连的Mg-滤纸-Ni电极，其输出功率和短路电流密度仅为3.76×10-4 mW和0.306 μA·cm-2。
2025, 41(6): 1162-1172
doi: 10.11862/CJIC.20250081
Abstract:
The abnormal metabolic activity of the tumor can increase the oxygen consumption in tumor cells, and the poor blood perfusion often happens in tumor regions as well, which are the main reasons that result in a hypoxic situation in the tumor. A fluorescence probe, AQD, with selective response toward hypoxia was designed for the detection of hypoxic tumor cells, which was obtained by the covalent connection of a large planar conjugated fluorophore with good fluorescence stability and a N, N-dimethylaniline moiety via the azo bond. The introduction of the azo bond in AQD caused significant fluorescence emission quenching, and the probe was reduced under hypoxic conditions to release the fluorophore via breaking the azo bond, resulting in the gradual recovery of fluorescence emission. Probe AQD exhibited a remarkable fluorescence response in hypoxic conditions, high selectivity, and good biocompatibility, which was successfully used for the imaging of hypoxic tumor cells and realized the detection of hypoxic A549 cells.
The abnormal metabolic activity of the tumor can increase the oxygen consumption in tumor cells, and the poor blood perfusion often happens in tumor regions as well, which are the main reasons that result in a hypoxic situation in the tumor. A fluorescence probe, AQD, with selective response toward hypoxia was designed for the detection of hypoxic tumor cells, which was obtained by the covalent connection of a large planar conjugated fluorophore with good fluorescence stability and a N, N-dimethylaniline moiety via the azo bond. The introduction of the azo bond in AQD caused significant fluorescence emission quenching, and the probe was reduced under hypoxic conditions to release the fluorophore via breaking the azo bond, resulting in the gradual recovery of fluorescence emission. Probe AQD exhibited a remarkable fluorescence response in hypoxic conditions, high selectivity, and good biocompatibility, which was successfully used for the imaging of hypoxic tumor cells and realized the detection of hypoxic A549 cells.
2025, 41(6): 1173-1182
doi: 10.11862/CJIC.20250112
Abstract:
In this study, a self-calibrating near-infrared fluorescence probe was designed and synthesized based on the dual-fluorophore strategy utilizing methylene blue and coumarin. The probe utilized methylene blue (emission spectrum range: 640-740 nm) and coumarin fluorophore (emission spectrum range: 440-600 nm) as signal output units, thereby achieving effective spectral separation and highly selective detection of HClO. Under physiological pH conditions, HClO triggers an oxidation-cleavage reaction, releasing methylene blue and coumarin, which emit distinct red and green fluorescence, respectively. This dualemission feature enabled rapid HClO detection with two-channel detection limits of 25.13 nmol·L-1 (green channel) and 31.55 nmol·L-1 (red channel). Furthermore, in cell imaging experiments, this probe demonstrated excellent cell membrane permeability and low cytotoxicity, successfully enabling the monitoring of both endogenous and exogenous HClO in living cells. By incorporating a two-channel self-calibration system, the probe effectively mitigated signal variations caused by instrumental or environmental interference, substantially improving detection sensitivity and reliability.
In this study, a self-calibrating near-infrared fluorescence probe was designed and synthesized based on the dual-fluorophore strategy utilizing methylene blue and coumarin. The probe utilized methylene blue (emission spectrum range: 640-740 nm) and coumarin fluorophore (emission spectrum range: 440-600 nm) as signal output units, thereby achieving effective spectral separation and highly selective detection of HClO. Under physiological pH conditions, HClO triggers an oxidation-cleavage reaction, releasing methylene blue and coumarin, which emit distinct red and green fluorescence, respectively. This dualemission feature enabled rapid HClO detection with two-channel detection limits of 25.13 nmol·L-1 (green channel) and 31.55 nmol·L-1 (red channel). Furthermore, in cell imaging experiments, this probe demonstrated excellent cell membrane permeability and low cytotoxicity, successfully enabling the monitoring of both endogenous and exogenous HClO in living cells. By incorporating a two-channel self-calibration system, the probe effectively mitigated signal variations caused by instrumental or environmental interference, substantially improving detection sensitivity and reliability.
2025, 41(6): 1183-1195
doi: 10.11862/CJIC.20250034
Abstract:
A low-cost 1D cobalt-based coordination polymer (CP) [Co(BGPD)(DMSO)2(H2O)2] (Co-BD; H2BGPD=N, N'-bis(glycinyl)pyromellitic diimide; DMSO=dimethyl sulfoxide) was synthesized by a simple method, and its crystal structure was characterized. In a three-electrode system, Co-BD, as the electrode material for supercapacitors, achieved a specific capacitance of 830 F·g-1 at 1 A·g-1, equivalent to a specific capacity of 116.4 mAh·g-1, and exhibited high-rate capability, reaching 212 F·g-1 at 20 A·g-1. Impressively, Co-BD||rGO (reduced graphene oxide), representing an asymmetrical supercapacitor, owns a higher energy density of 14.2 Wh·kg-1 at 0.80 kW·kg-1, and an excellent cycle performance (After 4 000 cycles at 1 A·g-1, the capacitance retention was up to 94%).
A low-cost 1D cobalt-based coordination polymer (CP) [Co(BGPD)(DMSO)2(H2O)2] (Co-BD; H2BGPD=N, N'-bis(glycinyl)pyromellitic diimide; DMSO=dimethyl sulfoxide) was synthesized by a simple method, and its crystal structure was characterized. In a three-electrode system, Co-BD, as the electrode material for supercapacitors, achieved a specific capacitance of 830 F·g-1 at 1 A·g-1, equivalent to a specific capacity of 116.4 mAh·g-1, and exhibited high-rate capability, reaching 212 F·g-1 at 20 A·g-1. Impressively, Co-BD||rGO (reduced graphene oxide), representing an asymmetrical supercapacitor, owns a higher energy density of 14.2 Wh·kg-1 at 0.80 kW·kg-1, and an excellent cycle performance (After 4 000 cycles at 1 A·g-1, the capacitance retention was up to 94%).
2025, 41(6): 1196-1206
doi: 10.11862/CJIC.20240445
Abstract:
Iron (Fe) nanoparticles and graphite (Gr) with different masses of bismuth trisulfide (Bi2S3) were mixed by high-energy ball milling treatment to fabricate the corresponding composite iron anodes Bi2S3@Fe-Gr. The hydrogen evolution reaction and iron passivation process on these iron electrodes were investigated in alkaline and neutral solutions. The iron electrode Bi2S3-3@Fe-Gr (The additional amount of Bi2S3 was 3 mg) revealed the strongest ability to inhibit hydrogen evolution among the iron electrodes of the present investigation, while the Bi2S3-6@Fe-Gr electrode (The additional amount of Bi2S3 was 6 mg) delivered significant performance in inhibiting anodic passivation. This is because the high-energy ball milling process leads to the well-dispersion of Bi2S3 and the changes in the surface of Fe nanoparticles, thereby slowing down the passivation of the iron electrode surface.
Iron (Fe) nanoparticles and graphite (Gr) with different masses of bismuth trisulfide (Bi2S3) were mixed by high-energy ball milling treatment to fabricate the corresponding composite iron anodes Bi2S3@Fe-Gr. The hydrogen evolution reaction and iron passivation process on these iron electrodes were investigated in alkaline and neutral solutions. The iron electrode Bi2S3-3@Fe-Gr (The additional amount of Bi2S3 was 3 mg) revealed the strongest ability to inhibit hydrogen evolution among the iron electrodes of the present investigation, while the Bi2S3-6@Fe-Gr electrode (The additional amount of Bi2S3 was 6 mg) delivered significant performance in inhibiting anodic passivation. This is because the high-energy ball milling process leads to the well-dispersion of Bi2S3 and the changes in the surface of Fe nanoparticles, thereby slowing down the passivation of the iron electrode surface.
2025, 41(6): 1207-1216
doi: 10.11862/CJIC.20250005
Abstract:
Two new complexes, [Zn2(L1)(HL1)(NO3)]·CH3OH (1) and [Zn3(L2)(L3)3Cl]·CH3OH (2), were successfully synthesized by'one-pot'method based on cinnoline-3-ylhydrazine ligand and zinc with 2-hydroxy-4-methoxybenz-aldehyde and 2-hydroxy-3-methoxybenzaldehyde ligands, respectively, where H2L1=5-methoxy-2-(phthalazin-1-yl-hydrazonomethyl)-phenol, H2L2=2-methoxy-6-(phthalazin-1-yl-hydrazonomethyl)-phenol, HL3=2-(1, 8-dihydro-[1,2,4]triazolo[3,4-α]phthalazin-3-yl)-6-methoxy-phenol. Complexes 1 and 2 were characterized by infrared spectroscopy, elemental analysis, single-crystal X-ray diffraction, powder X-ray diffraction, etc. It is worth noting that the cinnolin-3-yl-hydrazine ligand and 2-hydroxy-3-methoxybenzaldehyde form two types of Schiff bases (H2L2 and HL3) when in situ reacting and coordinating with Zn(Ⅱ), and HL3 also has two coordination modes. In addition, the fluorescence performance showed that complex 1 can achieve selective and sensitive sensing of Al3+ in water with a detection limit of 6.37 μmol·L-1.
Two new complexes, [Zn2(L1)(HL1)(NO3)]·CH3OH (1) and [Zn3(L2)(L3)3Cl]·CH3OH (2), were successfully synthesized by'one-pot'method based on cinnoline-3-ylhydrazine ligand and zinc with 2-hydroxy-4-methoxybenz-aldehyde and 2-hydroxy-3-methoxybenzaldehyde ligands, respectively, where H2L1=5-methoxy-2-(phthalazin-1-yl-hydrazonomethyl)-phenol, H2L2=2-methoxy-6-(phthalazin-1-yl-hydrazonomethyl)-phenol, HL3=2-(1, 8-dihydro-[1,2,4]triazolo[3,4-α]phthalazin-3-yl)-6-methoxy-phenol. Complexes 1 and 2 were characterized by infrared spectroscopy, elemental analysis, single-crystal X-ray diffraction, powder X-ray diffraction, etc. It is worth noting that the cinnolin-3-yl-hydrazine ligand and 2-hydroxy-3-methoxybenzaldehyde form two types of Schiff bases (H2L2 and HL3) when in situ reacting and coordinating with Zn(Ⅱ), and HL3 also has two coordination modes. In addition, the fluorescence performance showed that complex 1 can achieve selective and sensitive sensing of Al3+ in water with a detection limit of 6.37 μmol·L-1.
2025, 41(6): 1217-1226
doi: 10.11862/CJIC.20240457
Abstract:
A novel coordination polymer (CP) {[Cd2(L)(1,4-bimb)1.5(DMF)2]·DMF}n (1) (H4L=5, 5′-[1,1′-biphenyl-4,4′-diylbis(oxy)]diisophthalic acid, 1,4-bimb=1,4-bis(imidazole-1-ylmethyl)-benzene) has been designed and synthesized through solvothermal reaction. Structural analysis shows that Cd(Ⅱ) is connected by H4L and 1,4-bimb to form a 2D network, and 1,4-bimb further expands the 2D network into a 3D framework. CP 1 can be used as an excellent fluorescence sensor for Fe3+ and 4-nitrophenol (4-NP), with low detection limits and good anti-interference. The detection limits of Fe3+ and 4-NP were 0.034 and 0.031 μmol·L-1, respectively. In addition, the fluorescence quenching mechanism was studied. 1 was successfully applied to determine Fe3+ and 4-NP content in the Yanhe River water sample.
A novel coordination polymer (CP) {[Cd2(L)(1,4-bimb)1.5(DMF)2]·DMF}n (1) (H4L=5, 5′-[1,1′-biphenyl-4,4′-diylbis(oxy)]diisophthalic acid, 1,4-bimb=1,4-bis(imidazole-1-ylmethyl)-benzene) has been designed and synthesized through solvothermal reaction. Structural analysis shows that Cd(Ⅱ) is connected by H4L and 1,4-bimb to form a 2D network, and 1,4-bimb further expands the 2D network into a 3D framework. CP 1 can be used as an excellent fluorescence sensor for Fe3+ and 4-nitrophenol (4-NP), with low detection limits and good anti-interference. The detection limits of Fe3+ and 4-NP were 0.034 and 0.031 μmol·L-1, respectively. In addition, the fluorescence quenching mechanism was studied. 1 was successfully applied to determine Fe3+ and 4-NP content in the Yanhe River water sample.
2025, 41(6): 1227-1234
doi: 10.11862/CJIC.20240448
Abstract:
The reaction of Mg2+ and 5-{1, 3-dioxo-1H-benzo[de]isoquinolin-2(3H)-yl}terephthalic acid (H2L) leads to two metal-organic frameworks, [Mg(L)(DMF)2(H2O)2]2·5DMF·2H2O (1) with a 1D structure and [Mg2(L)2(DMSO)3(H2O)] (2) with a 2D (4, 4)-net structure. Interestingly, the two compounds exhibit distinct luminescent responses to external mechanical stimuli. 1 exhibited exceptional resistance mechanical chromic luminescence (RMCL), which can be attributed to the predominant hydrogen bonds and the presence of high-boiling-point solvent molecules within its structure. 2 had a reversible MCL property, which can be attributed to the dominant π-π weak interactions, coupled with the reversible destruction/restoration of its crystallinity under grinding/fumigation.
The reaction of Mg2+ and 5-{1, 3-dioxo-1H-benzo[de]isoquinolin-2(3H)-yl}terephthalic acid (H2L) leads to two metal-organic frameworks, [Mg(L)(DMF)2(H2O)2]2·5DMF·2H2O (1) with a 1D structure and [Mg2(L)2(DMSO)3(H2O)] (2) with a 2D (4, 4)-net structure. Interestingly, the two compounds exhibit distinct luminescent responses to external mechanical stimuli. 1 exhibited exceptional resistance mechanical chromic luminescence (RMCL), which can be attributed to the predominant hydrogen bonds and the presence of high-boiling-point solvent molecules within its structure. 2 had a reversible MCL property, which can be attributed to the dominant π-π weak interactions, coupled with the reversible destruction/restoration of its crystallinity under grinding/fumigation.
2025, 41(6): 1235-1244
doi: 10.11862/CJIC.20240429
Abstract:
We have examined the theoretical implications of combining two main and three auxiliary ligands to form several Ir(Ⅲ) complexes featuring a transition metal as their core atom to identify some appropriate organic light-emitting diode (OLED) materials. By utilizing electronic structure, frontier molecular orbitals, minimum single-line absorption, triplet excited states, and emission spectral data derived from the density functional theory, the usefulness of these Ir(Ⅲ) complexes, including (piq)2Ir(acac), (piq)2Ir(tmd), (piq)2Ir(tpip), (fpiq)2Ir(acac), (fpiq)2Ir(tmd), and (fpiq)2Ir(tpip), in OLEDs was examined, where piq=1-phenylisoquinoline, fpiq=1-(4-fluorophenyl) isoquinoline, acac=(3Z)-4-hydroxypent-3-en-2-one, tmd=(4Z)-5-hydroxy-2, 2, 6, 6-tetramethylhept-4-en-3-one, and tpip=tetraphenylimido-diphosphonate. These complexes all have low-efficiency roll-off properties, especially (fpiq)2Ir(tpip). Some researchers have successfully synthesized complexes extremely similar to (piq)2Ir(acac) through the Suzuki-Miyaura coupling reaction.
We have examined the theoretical implications of combining two main and three auxiliary ligands to form several Ir(Ⅲ) complexes featuring a transition metal as their core atom to identify some appropriate organic light-emitting diode (OLED) materials. By utilizing electronic structure, frontier molecular orbitals, minimum single-line absorption, triplet excited states, and emission spectral data derived from the density functional theory, the usefulness of these Ir(Ⅲ) complexes, including (piq)2Ir(acac), (piq)2Ir(tmd), (piq)2Ir(tpip), (fpiq)2Ir(acac), (fpiq)2Ir(tmd), and (fpiq)2Ir(tpip), in OLEDs was examined, where piq=1-phenylisoquinoline, fpiq=1-(4-fluorophenyl) isoquinoline, acac=(3Z)-4-hydroxypent-3-en-2-one, tmd=(4Z)-5-hydroxy-2, 2, 6, 6-tetramethylhept-4-en-3-one, and tpip=tetraphenylimido-diphosphonate. These complexes all have low-efficiency roll-off properties, especially (fpiq)2Ir(tpip). Some researchers have successfully synthesized complexes extremely similar to (piq)2Ir(acac) through the Suzuki-Miyaura coupling reaction.
2025, 41(6): 1245-1255
doi: 10.11862/CJIC.20240389
Abstract:
Bovine serum albumin (BSA) and glycine (Gly) dual-ligand-modified copper nanoclusters (BSA-Gly CuNCs) with high fluorescence intensity were synthesized by a one-pot strategy. Based on the competitive fluorescence quenching and dynamic quenching effects of ornidazole (ONZ) on BSA-Gly CuNCs, a simple and sensitive detection method for ONZ was successfully developed. The experimental results demonstrate that the addition of the small molecule Gly can more effectively protect CuNCs, and thus enhance its fluorescence intensity and stability. The proposed assay allowed for the detection of ONZ in a linear range of 0.28 to 52.60 μmol·L-1 and a detection limit of 0.069 μmol·L-1. Compared with the single-ligand-modified CuNCs, dual-ligand-modified BSA-Gly CuNCs had higher fluorescence intensity, stability, and sensing ability and were successfully applied to evaluate ONZ in actual ONZ tablets.
Bovine serum albumin (BSA) and glycine (Gly) dual-ligand-modified copper nanoclusters (BSA-Gly CuNCs) with high fluorescence intensity were synthesized by a one-pot strategy. Based on the competitive fluorescence quenching and dynamic quenching effects of ornidazole (ONZ) on BSA-Gly CuNCs, a simple and sensitive detection method for ONZ was successfully developed. The experimental results demonstrate that the addition of the small molecule Gly can more effectively protect CuNCs, and thus enhance its fluorescence intensity and stability. The proposed assay allowed for the detection of ONZ in a linear range of 0.28 to 52.60 μmol·L-1 and a detection limit of 0.069 μmol·L-1. Compared with the single-ligand-modified CuNCs, dual-ligand-modified BSA-Gly CuNCs had higher fluorescence intensity, stability, and sensing ability and were successfully applied to evaluate ONZ in actual ONZ tablets.
