@article{Chang2026, 
author = {Hui Chang and Cheng Luo and Pengrong Gu and Wenjuan Fan and Jin Lu and Hao Fu and Yufeng Li and Li Wang and Chuanhai Xiao and Hu Li and Zhiqiang Jiang},
title = {Harnessing microenvironment of S-scheme heterostructure with dot-on-surface morphology and sulfur vacancies for efficient photocatalytic hydrogen evolution and tetracycline degradation},
year = {2026},
journal = {Nano Research},
volume = {19},
number = {8},
pages = {94908765},
keywords = {sulfur vacancies, dot-on-surface morphology, reaction microdomain regulation, rapid interfacial electron transfer, photocatalytic H2 production and tetracycline (TC) degradation},
url = {https://www.sciopen.com/article/10.26599/NR.2026.94908765},
doi = {10.26599/NR.2026.94908765},
abstract = {Reasonable fabrication of S-scheme heterojunction presents a positive outlook to boost photocatalytic hydrogen (H2) production and degradation of antibiotics, while facing enormous challenges like rapid charge separation and catalytic reaction microdomain regulation. Herein, we deliberately anchor ultra-small nanodots VS-ZnSP with sulfur vacancies (VS) derived from Zn-metal-organic framework (MOF) onto ZnIn2S4 (ZIS) nanosheets to rationally construct an S-scheme heterostructure ZIS/VS-ZnSP, achieving markedly enhanced photocatalytic H2 evolution and tetracycline (TC) removal activity, with a high photo-removal TC efficiency of 98.92% within 60 min and an optimal photocatalytic H2-generation rate of 5.31 mmol·g−1·h−1. The existence of VS on VS-ZnSP, and the constructed dot-on-surface morphology of ZIS/VS-ZnSP are corroborated. The presence of VS enhances the built-in interface electric field owing to the widened Fermi level gap of the S-scheme heterojunction, thereby accelerating the separation of photo-generated electrons and holes. Further, dot-on-surface morphology not only optimizes adsorption and desorption behavior of H*, but also improves adsorption capacity of O2 and promotes formation of ·O2− by photo-generated electron reduction, simultaneously expediting photocatalytic H2 evolution and TC removal. This dual microenvironment modulation strategy offers a viable scenario for conscious induction of rapid transfer of interface charges and regulation of catalytic reaction microdomain, significantly reinforcing photoredox efficiency.}
}