Citation: Zhen Shi, Wei Jin, Yuhang Sun, Xu Li, Liang Mao, Xiaoyan Cai, Zaizhu Lou. Interface charge separation in Cu2CoSnS4/ZnIn2S4 heterojunction for boosting photocatalytic hydrogen production[J]. Chinese Journal of Structural Chemistry, ;2023, 42(12): 100201. doi: 10.1016/j.cjsc.2023.100201 shu

Interface charge separation in Cu2CoSnS4/ZnIn2S4 heterojunction for boosting photocatalytic hydrogen production

The practical application of hexagonal ZnIn2S4 (ZIS) as a visible-light photocatalyst for hydrogen (H2) production is hindered by rapid internal charge recombination. In this study, we successfully synthesized Cu2CoSnS4 (CCTS) nanocrystals and loaded them onto the surface of ZIS nanosheets to create a p-n heterojunction photocatalyst. The optimized Cu2CoSnS4/ZnIn2S4 (CCTS/ZIS) heterojunction exhibited a significantly higher visible-light photocatalytic H2 evolution rate of 4.90 mmol·g-1·h-1 compared to ZIS and CCTS alone. The enhanced photocatalytic efficiency was attributed to improved electron transfer and charge separation at the heterojunction interface. The formation of p-n heterojunction facilitated the accumulation of valence band electrons in ZIS and conduction band holes in CCTS, effectively suppressing the recombination of photogenerated electrons and holes. Theoretical calculations, spectroscopic, and photoelectrochemical characterizations supported the findings. This work presents a promising approach for designing efficient p-n heterojunction semiconductor photocatalysts for practical applications in visible-light-driven hydrogen evolution.
- Photocatalysis,
- p-n heterojunction,
- Charge separation,
- Hydrogen evolution
1. [1]
  Guixu Pan , Zhiling Xia , Ning Wang , Hejia Sun , Zhaoqi Guo , Yunfeng Li , Xin Li . Preparation of high-efficient donor-π-acceptor system with crystalline g-C3N4 as charge transfer module for enhanced photocatalytic hydrogen evolution. Chinese Journal of Structural Chemistry, 2024, 43(12): 100463-100463. doi: 10.1016/j.cjsc.2024.100463
2. [2]
  Yanghanbin Zhang , Dongxiao Wen , Wei Sun , Jiahe Peng , Dezhong Yu , Xin Li , Yang Qu , Jizhou Jiang . State-of-the-art evolution of g-C3N4-based photocatalytic applications: A critical review. Chinese Journal of Structural Chemistry, 2024, 43(12): 100469-100469. doi: 10.1016/j.cjsc.2024.100469
3. [3]
  Kai Han , Guohui Dong , Ishaaq Saeed , Tingting Dong , Chenyang Xiao . Boosting bulk charge transport of CuWO4 photoanodes via Cs doping for solar water oxidation. Chinese Journal of Structural Chemistry, 2024, 43(2): 100207-100207. doi: 10.1016/j.cjsc.2023.100207
4. [4]
  Qiang Zhang , Weiran Gong , Huinan Che , Bin Liu , Yanhui Ao . S doping induces to promoted spatial separation of charge carriers on carbon nitride for efficiently photocatalytic degradation of atrazine. Chinese Journal of Structural Chemistry, 2023, 42(12): 100205-100205. doi: 10.1016/j.cjsc.2023.100205
5. [5]
  Tianhao Li , Wenguang Tu , Zhigang Zou . In situ photocatalytically enhanced thermogalvanic cells for electricity and hydrogen production. Chinese Journal of Structural Chemistry, 2024, 43(1): 100195-100195. doi: 10.1016/j.cjsc.2023.100195
6. [6]
  Mengjun Zhao , Yuhao Guo , Na Li , Tingjiang Yan . Deciphering the structural evolution and real active ingredients of iron oxides in photocatalytic CO2 hydrogenation. Chinese Journal of Structural Chemistry, 2024, 43(8): 100348-100348. doi: 10.1016/j.cjsc.2024.100348
7. [7]
  Hongliang Zeng , Yuan Ji , Jinfeng Wen , Xu Li , Tingting Zheng , Qiu Jiang , Chuan Xia . Pt nanocluster-catalyzed hydrogen evolution reaction: Recent advances and future outlook. Chinese Chemical Letters, 2025, 36(3): 109686-. doi: 10.1016/j.cclet.2024.109686
8. [8]
  Xingyan Liu , Chaogang Jia , Guangmei Jiang , Chenghua Zhang , Mingzuo Chen , Xiaofei Zhao , Xiaocheng Zhang , Min Fu , Siqi Li , Jie Wu , Yiming Jia , Youzhou He . Single-atom Pd anchored in the porphyrin-center of ultrathin 2D-MOFs as the active center to enhance photocatalytic hydrogen-evolution and NO-removal. Chinese Chemical Letters, 2024, 35(9): 109455-. doi: 10.1016/j.cclet.2023.109455
9. [9]
  Wengao Zeng , Yuchen Dong , Xiaoyuan Ye , Ziying Zhang , Tuo Zhang , Xiangjiu Guan , Liejin Guo . Crystalline carbon nitride with in-plane built-in electric field accelerates carrier separation for excellent photocatalytic hydrogen evolution. Chinese Chemical Letters, 2024, 35(4): 109252-. doi: 10.1016/j.cclet.2023.109252
10. [10]
  Ziruo Zhou , Wenyu Guo , Tingyu Yang , Dandan Zheng , Yuanxing Fang , Xiahui Lin , Yidong Hou , Guigang Zhang , Sibo Wang . Defect and nanostructure engineering of polymeric carbon nitride for visible-light-driven CO2 reduction. Chinese Journal of Structural Chemistry, 2024, 43(3): 100245-100245. doi: 10.1016/j.cjsc.2024.100245
11. [11]
  Weixu Li , Yuexin Wang , Lin Li , Xinyi Huang , Mengdi Liu , Bo Gui , Xianjun Lang , Cheng Wang . Promoting energy transfer pathway in porphyrin-based sp2 carbon-conjugated covalent organic frameworks for selective photocatalytic oxidation of sulfide. Chinese Journal of Structural Chemistry, 2024, 43(7): 100299-100299. doi: 10.1016/j.cjsc.2024.100299
12. [12]
  Jiangqi Ning , Junhan Huang , Yuhang Liu , Yanlei Chen , Qing Niu , Qingqing Lin , Yajun He , Zheyuan Liu , Yan Yu , Liuyi Li . Alkyl-linked TiO2@COF heterostructure facilitating photocatalytic CO2 reduction by targeted electron transport. Chinese Journal of Structural Chemistry, 2024, 43(12): 100453-100453. doi: 10.1016/j.cjsc.2024.100453
13. [13]
  Jiaqi Ma , Lan Li , Yiming Zhang , Jinjie Qian , Xusheng Wang . Covalent organic frameworks: Synthesis, structures, characterizations and progress of photocatalytic reduction of CO2. Chinese Journal of Structural Chemistry, 2024, 43(12): 100466-100466. doi: 10.1016/j.cjsc.2024.100466
14. [14]
  Xiuzheng Deng , Yi Ke , Jiawen Ding , Yingtang Zhou , Hui Huang , Qian Liang , Zhenhui Kang . Construction of ZnO@CDs@Co₃O₄ sandwich heterostructure with multi-interfacial electron-transfer toward enhanced photocatalytic CO₂ reduction. Chinese Chemical Letters, 2024, 35(4): 109064-. doi: 10.1016/j.cclet.2023.109064
15. [15]
  Bingke Zhang , Dongbo Wang , Jiamu Cao , Wen He , Gang Liu , Donghao Liu , Chenchen Zhao , Jingwen Pan , Sihang Liu , Weifeng Zhang , Xuan Fang , Liancheng Zhao , Jinzhong Wang . Tuning Stark effect by defect engineering on black titanium dioxide mesoporous spheres for enhanced hydrogen evolution. Chinese Chemical Letters, 2024, 35(11): 110254-. doi: 10.1016/j.cclet.2024.110254
16. [16]
  Xinlong Zheng , Zhongyun Shao , Jiaxin Lin , Qizhi Gao , Zongxian Ma , Yiming Song , Zhen Chen , Xiaodong Shi , Jing Li , Weifeng Liu , Xinlong Tian , Yuhao Liu . Recent advances of CuSbS₂ and CuPbSbS₃ as photocatalyst in the application of photocatalytic hydrogen evolution and degradation. Chinese Chemical Letters, 2025, 36(3): 110533-. doi: 10.1016/j.cclet.2024.110533
17. [17]
  Yue Pan , Wenping Si , Yahao Li , Haotian Tan , Ji Liang , Feng Hou . Promoting exciton dissociation by metal ion modification in polymeric carbon nitride for photocatalysis. Chinese Chemical Letters, 2024, 35(12): 109877-. doi: 10.1016/j.cclet.2024.109877
18. [18]
  Jia-Cheng Hou , Wei Cai , Hong-Tao Ji , Li-Juan Ou , Wei-Min He . Recent advances in semi-heterogenous photocatalysis in organic synthesis. Chinese Chemical Letters, 2025, 36(2): 110469-. doi: 10.1016/j.cclet.2024.110469
19. [19]
  Zongyi Huang , Cheng Guo , Quanxing Zheng , Hongliang Lu , Pengfei Ma , Zhengzhong Fang , Pengfei Sun , Xiaodong Yi , Zhou Chen . Efficient photocatalytic biomass-alcohol conversion with simultaneous hydrogen evolution over ultrathin 2D NiS/Ni-CdS photocatalyst. Chinese Chemical Letters, 2024, 35(7): 109580-. doi: 10.1016/j.cclet.2024.109580
20. [20]
  Linlu Bai , Wensen Li , Xiaoyu Chu , Haochun Yin , Yang Qu , Ekaterina Kozlova , Zhao-Di Yang , Liqiang Jing . Effects of nanosized Au on the interface of zinc phthalocyanine/TiO₂ for CO₂ photoreduction. Chinese Chemical Letters, 2025, 36(2): 109931-. doi: 10.1016/j.cclet.2024.109931

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