Acta Phys. -Chim. Sin. ›› 2026, Vol. 42 ›› Issue (10): 100237.doi: 10.1016/j.actphy.2026.100237
Special Issue: 2026 Special Issue of Acta Physico-Chimica Sinica: Emerging Scientists
• ARTICLE • Previous Articles Next Articles
Interface engineered Type-Ⅱ heterojunction ZnIn2S4/SCN for enhanced photocatalytic H2O2 synthesis from pure water
Yongkang Quan1,2, Ruidong Li4, Yunfei Yang1, Shuguo Ding1, Rongxing Chen1, Jianying Huang1,*(
), Yun Hau Ng5,6,*(), Yuekun Lai1,2,3,*()
- 1 College of Chemical Engineering, Fuzhou University, Fuzhou 350116, Fujian Province, China
2 Qingyuan Innovation Laboratory, Quanzhou 362801, Fujian Province, China
3 State Key Laboratory of New Textile Materials and Advanced Processing, Wuhan Textile University, Wuhan 430073, Hubei Province, China
4 School of Chemical Engineering, Northwest University, Xi'an 710069, Shaanxi Province, China
5 School of Energy and Environment, City University of Hong Kong, Kowloon Tong 999077, Hong Kong, China
6 Center for Renewable Energy and Storage Technologies (CREST), Physical Science and Engineering (PSE) Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
-
Received:2025-11-18Revised:2026-01-02Accepted:2026-01-03Published:2026-09-03 -
Contact:Email: jyhuang@fzu.edu.cn (Jianying Huang)yunhau.ng@cityu.edu.hk (Yun Hau Ng)yklai@fzu.edu.cn (Yuekun Lai)
Cite this article
Yongkang Quan, Ruidong Li, Yunfei Yang, Shuguo Ding, Rongxing Chen, Jianying Huang, Yun Hau Ng, Yuekun Lai. Interface engineered Type-Ⅱ heterojunction ZnIn2S4/SCN for enhanced photocatalytic H2O2 synthesis from pure water[J]. Acta Phys. -Chim. Sin. 2026, 42(10), 100237. doi: 10.1016/j.actphy.2026.100237
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Fig 1
(a) Preparation process of ZIS/SCN. (b) XRD patterns. (c) N2 sorption isotherms (inset: specific surface area of photocatalysts). (d) Pore size distribution curves."
Fig 1
Fig 2
(a, b) TEM image and lattice of SCN. (c, d) TEM image and lattice of ZIS. (e, f) TEM images of ZIS/SCN and (g) corresponding elemental mapping."
Fig 2
Fig 3
(a) XPS survey spectra. XPS spectra (b) C 1s, (c) N 1s, (d) S 2p, (e) Zn 2p, (f) In 3d."
Fig 3
Fig 4
(a) Performance testing of photocatalytic H2O2 production by CN, SCN, ZIS and ZIS/SCN. (b) Photocatalytic H2O2 production performance test of ZIS/SCN under different gas atmospheres (Ar, Air, O2). (c) Performance comparison of ZIS/CN, ZIS@SCN and ZIS/SCN. (d) Stability performance test of ZIS/SCN photocatalysis for H2O2 production. (e) SCC efficiency of ZIS/SCN in photocatalytic H2O2 generation (25 ℃). (f) AQY of ZIS/SCN. (g) Comparison of the H2O2 production efficiency of ZIS/CN with that of the previously reported carbon nitride-based photocatalysts. (h) Photocatalytic synthesis of H2O2 for the on-site application of the Fenton reaction system."
Fig 4
Fig 5
(a) UV-Vis DRS of SCN, ZIS and ZIS/SCN. (b) SCN, ZIS and ZIS/SCN corresponding Kudelka-Munk diagrams. (c) Energy band structure relationship between SCN and ZIS. (d) TRPL spectra of SCN, ZIS and ZIS/SCN. (e) EIS curves for SCN, ZIS and ZIS/SCN. (f) Corresponding photocurrent curves for SCN, ZIS and ZIS/SCN."
Fig 5
Fig 6
Work functions for (a) SCN and (b) ZIS. (c) EF positional relationship between SCN and ZIS. (d) Differential charge density of ZIS/SCN. (e) Plane-averaged differential charge density of ZIS/SCN along the z-axis. (f) DFT calculated free energy diagrams of ORR pathways for photocatalysts."
Fig 6
Fig 7
(a) EPR spectra of DMPO-•O2− under light conditions. (b) In situ FT-IR spectra of ZIS/SCN in photocatalytic reaction. (c) Mechanism of photocatalytic synthesis of H2O2 via ZIS/SCN."
Fig 7
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