In Situ Hydrothermal Synthesis of ZnS/TiO2 Nanofibers S‐Scheme Heterojunction for Enhanced Photocatalytic H2 Evolution
Source abstract
Abstract
Abstract Photocatalysts with step‐scheme (S‐scheme) heterojunctions exhibit huge potential in hydrogen evolution via photocatalytic water splitting, which is regarded as a promising technology to solve the energy crisis and environmental issues. In this work, S‐scheme heterojunction photocatalysts are constructed by in situ depositing ZnS nanoparticles on TiO2 nanofibers via hydrothermal method. A highly improved photocatalytic H2 evolution rate is achieved for the ZnS/TiO2 heterojunction as compared to the mono‐component ZnS and TiO2. Remarkably, the TiO2/ZnS‐5 (TZ‐5) sample possesses the highest H2 evolution rate of 5503.8 µmol g‐1 h‐1, which is 4.8 times of ZnS and 38.8 times of TiO2, respectively. The observed photocatalytic performance improvement is mainly attributed to the construction of an S‐scheme heterojunction, which results in the fast separation of the photogenerated e−–h+ pairs and enhanced redox capacity of the system. This work may provide inspirations and designing references for developing high‐performance S‐scheme heterojunction photocatalysts.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Advanced Photocatalysis Techniques · Copper-based nanomaterials and applications · ZnO doping and properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
College of Chemistry and Chemical Engineering Hubei Key Laboratory of Pollutant Analysis and Reuse Technology Hubei Normal University Huangshi 435002 P. R. China
College of New Materials and New Energies Shenzhen Technology University Shenzhen 518118 P. R. China
Funding
National Natural Science Foundation of China · Shenzhen Fundamental Research Program
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