Citation: Yun Wang, Huage Lin, Jiaxiang Zong, Mengjiao Yu, Guangyu Wu, Weinan Xing. Interface design of S-scheme Co9S8/flower-like g-C3N4 van der Waals heterojunction with enhanced photocatalytic hydrogen production and tetracycline hydrochloride degradation[J]. Chinese Journal of Structural Chemistry, ;2026, 45(2): 100798. doi: 10.1016/j.cjsc.2025.100798 shu

Interface design of S-scheme Co9S8/flower-like g-C3N4 van der Waals heterojunction with enhanced photocatalytic hydrogen production and tetracycline hydrochloride degradation

The construction of heterojunctions at phase interfaces represents a crucial strategy for enhancing photocatalytic activity, but developing more cost-effective and higher-performance photocatalysts remains a challenge. Herein, we designed a S-scheme van der Waals heterojunctions (vdWHs) photocatalyst by in situ growth of Co9S8 on flower-like graphitic carbon nitride (FCN). The S-scheme heterojunction ensures efficient charge separation and significantly enhances redox capabilities, while the vdWHs specifically overcome the lattice mismatch limitation inherent in conventional S-scheme heterojunctions owing to its interfacial coupling. In situ XPS analysis was used to confirm the direction of interfacial charge transfer. Consequently, the photocatalyst achieved an optimal H2 evolution of 948.04 μmol h-1 g-1 without Pt cocatalysts. The tetracycline hydrochloride degradation reached 97.90% within 9 min through photocatalytic peroxymonosulfate activation that generated multiple reactive oxygen species. Liquid chromatography-mass spectrometry was employed to identify the possible reaction pathways and investigate the degradation products. This work advanced a rational design of S-scheme Co9S8/FCN vdWHs photocatalysts and offered promising solutions for both renewable energy production and wastewater remediation.
- Van der Waals,
- S-Scheme,
- Photocatalytic,
- Carbon nitride,
- Peroxymonosulfate
1. [1]
  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
2. [2]
  Weixia Wang , Yongji Zhang , Fei Zhao , Libo Wang , Fanpeng Meng , Shuchao Qin , Jinsheng Zhao . Engineering π-delocalized network in fused-thiophene based polymers/g-C3N4 S-scheme heterojunctions for photocatalytic H2 evolution. Chinese Journal of Structural Chemistry, 2026, 45(3): 100833-100833. doi: 10.1016/j.cjsc.2025.100833
3. [3]
  Xiaohan Wang , Xue Guo , Zhuo Song , Chen Guan , Chengyu Yang , Tianyang Li , Yukun Zhu , Yan Xu . Interface engineering of Co9S8/Ni3S2 heterojunction with robust stability for boosting peroxymonosulfate activation. Chinese Journal of Structural Chemistry, 2026, 45(2): 100771-100771. doi: 10.1016/j.cjsc.2025.100771
4. [4]
  Xiaoming Fu , Haibo Huang , Guogang Tang , Jingmin Zhang , Junyue Sheng , Hua Tang . Recent advances in g-C3N4-based direct Z-scheme photocatalysts for environmental and energy applications. Chinese Journal of Structural Chemistry, 2024, 43(2): 100214-100214. doi: 10.1016/j.cjsc.2024.100214
5. [5]
  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
6. [6]
  Linyu Zhu , Xu Tian , Guang Shi , Wenchi Zhang , Peisong Tang , Mohamed Bououdina , Sajjad Ali , Pengfei Xia . Assembling 3D cross-linked network by carbon nitride nanowires for visible-light photocatalytic H₂ evolution from dyestuffs wastewater. Chinese Chemical Letters, 2025, 36(12): 111088-. doi: 10.1016/j.cclet.2025.111088
7. [7]
  Ming-Zhen Li , Yang Zhang , Kun Li , Ya-Nan Shang , Yi-Zhen Zhang , Yu-Jiao Kan , Zhi-Yang Jiao , Yu-Yuan Han , Xiao-Qiang Cao . In situ regeneration of catalyst for Fenton-like degradation by photogenerated electron transportation: Characterization, performance and mechanism comparison. Chinese Chemical Letters, 2025, 36(1): 109885-. doi: 10.1016/j.cclet.2024.109885
8. [8]
  Yu Yao , Jinqiang Zhang , Yantao Wang , Kunsheng Hu , Yangyang Yang , Zhongshuai Zhu , Shuang Zhong , Huayang Zhang , Shaobin Wang , Xiaoguang Duan . Nitrogen-rich carbon for catalytic activation of peroxymonosulfate towards green synthesis. Chinese Chemical Letters, 2024, 35(11): 109633-. doi: 10.1016/j.cclet.2024.109633
9. [9]
  Zheng Liu , Yuqing Bian , Graham Dawson , Jiawei Zhu , Kai Dai . Rational constructing of Zn_0.5Cd_0.5S-diethylenetriamine/g-C₃N₄ S-scheme heterojunction with enhanced photocatalytic H₂O₂ production. Chinese Chemical Letters, 2025, 36(9): 111272-. doi: 10.1016/j.cclet.2025.111272
10. [10]
  Chao-Long Chen , Rong Chen , La-Sheng Long , Lan-Sun Zheng , Xiang-Jian Kong . Anchoring heterometallic cluster on P-doped carbon nitride for efficient photocatalytic nitrogen fixation in water and air ambient. Chinese Chemical Letters, 2024, 35(4): 108795-. doi: 10.1016/j.cclet.2023.108795
11. [11]
  Kai Han , Guohui Dong , Ishaaq Saeed , Tingting Dong , Chenyang Xiao . Morphology and photocatalytic tetracycline degradation of g-C3N4 optimized by the coal gangue. Chinese Journal of Structural Chemistry, 2024, 43(2): 100208-100208. doi: 10.1016/j.cjsc.2023.100208
12. [12]
  Hai-Bo Huang , Fang-Long Sun , Ze Luo , Meng-Yu Sun , Ben-Hao Liu , Xu-Sheng Wang , Hua Tang . MOF@MOF hierarchical heterotructures for enhanced photocatalytic H2O2 production and furfuryl alcohol oxidation. Chinese Journal of Structural Chemistry, 2025, 44(11): 100717-100717. doi: 10.1016/j.cjsc.2025.100717
13. [13]
  Yueying Wang , Jianming Xiong , Linwei Xin , Yuanyuan Li , He Huang , Wenjun Miao . Photosensitizer-synergized g-carbon nitride nanosheets with enhanced photocatalytic activity for eradicating drug-resistant bacteria and promoting wound healing. Chinese Chemical Letters, 2025, 36(4): 110003-. doi: 10.1016/j.cclet.2024.110003
14. [14]
  Mengmeng Ao , Jian Wei , Chuan-Shu He , Heng Zhang , Zhaokun Xiong , Yonghui Song , Bo Lai . Insight into the activation of peroxymonosulfate by N-doped copper-based carbon for efficient degradation of organic pollutants: Synergy of nonradicals. Chinese Chemical Letters, 2025, 36(1): 109882-. doi: 10.1016/j.cclet.2024.109882
15. [15]
  Huiyuan Deng , Na Zhao , Junjie You , Zhicheng Pan , Bo Xing , Yuling Ye , Bo Lai , Yuxi Wang , Tongrui Lu , Xiaonan Liu . Removal of bisphenol a through peroxymonosulfate activation with N-doped graphite carbon spheres coated cobalt nanoparticles catalyst: Synergy of nonradicals. Chinese Chemical Letters, 2025, 36(8): 110650-. doi: 10.1016/j.cclet.2024.110650
16. [16]
  Futao Yi , Ying Liu , Yao Chen , Jiahao Zhu , Quanguo He , Chun Yang , Dongge Ma , Jun Liu . Dual S-Scheme g-C₃N₄/Ag₃PO₄/g-C₃N₅ photocatalysts for removal of tetracycline pollutants through enhanced molecular oxygen activation. Chinese Chemical Letters, 2025, 36(8): 110544-. doi: 10.1016/j.cclet.2024.110544
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]
  Wen-Jing Li , Jun-Bo Wang , Yu-Heng Liu , Mo Zhang , Zhan-Hui Zhang . Molybdenum-doped carbon nitride as an efficient heterogeneous catalyst for direct amination of nitroarenes with arylboronic acids. Chinese Chemical Letters, 2025, 36(3): 110001-. doi: 10.1016/j.cclet.2024.110001
19. [19]
  Hao Lv , Zhi Li , Peng Yin , Ping Wan , Mingshan Zhu . Recent progress on non-metallic carbon nitride for the photosynthesis of H₂O₂: Mechanism, modification and in-situ applications. Chinese Chemical Letters, 2025, 36(1): 110457-. doi: 10.1016/j.cclet.2024.110457
20. [20]
  Siyuan You , Rui Li , Haoyun Lu , Lifei Hou , Xing Xu , Yanan Shang . Modulation of the structures and properties of iron-carbon composites by different small molecular carbon sources for Fenton-like reactions. Chinese Chemical Letters, 2025, 36(9): 110955-. doi: 10.1016/j.cclet.2025.110955

Get Citation

PDF

XML

Metrics

PDF Downloads(0)
Abstract views(12)
HTML views(1)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Address：Zhongguancun North First Street 2,100190 Beijing, PR China Tel: +86-010-82449177-888

DownLoad: Full-Size Img PowerPoint

Return