Interior and Surface Synergistic Modifications Modulate the SnNb2O6/Ni-Doped ZnIn2S4S-Scheme Heterojunction for Efficient Photocatalytic H2Evolution

Chunxue Li, Xiaoteng Liu, Guixiang Ding, Pengwei Huo, Yan Yan, Yongsheng Yan*, Guangfu Liao

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)

Abstract

Interior and surface synergistic modifications can endow the photocatalytic reaction with tuned photogenerated carrier flow at the atomic level. Herein, a new class of 2D/2D SnNb2O6/Ni-doped ZnIn2S4(SNO/Ni-ZIS) S-scheme heterojunctions is synthesized by a simple hydrothermal strategy, which was used to evaluate the synergy between interior and surface modifications. Theoretical calculations show that the S-scheme heterojunction boosts the desorption of H atoms for rapid H2evolution. As a result, 25% SNO/Ni0.4-ZIS exhibits significantly improved PHE activity under visible light, roughly 4.49 and 2.00 times stronger than that of single ZIS and Ni0.4-ZIS, respectively. In addition, 25% SNO/Ni0.4-ZIS also shows superior structural stability. This work provides advanced insight for developing high-performance S-scheme systems from photocatalyst design to mechanistic insight.

Original languageEnglish
Pages (from-to)4681-4689
Number of pages9
JournalInorganic Chemistry
Volume61
Issue number11
Early online date8 Mar 2022
DOIs
Publication statusPublished - 21 Mar 2022

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