1. Synthesis of g-C 3 N 4 @ZnIn 2 S 4 Heterostructures with Extremely High Photocatalytic Hydrogen Production and Reusability.
- Author
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Chang, Yu-Cheng, Chiao, Yung-Chang, and Chang, Chi-Jung
- Subjects
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HYDROGEN production , *HETEROSTRUCTURES , *SILVER , *VISIBLE spectra , *HYDROGEN evolution reactions , *CHARGE carriers , *HETEROJUNCTIONS - Abstract
The g-C3N4@ZnIn2S4 heterostructures were successfully synthesized through a combination of thermal annealing and hydrothermal methods. To enhance the photocatalytic hydrogen production performance and explore the interface between charge carriers, heterostructures of g-C3N4@ZnIn2S4 were fabricated using varying weights of g-C3N4 nanostructures under visible light irradiation. Remarkably, the photocatalytic hydrogen production efficiency of g-C3N4@ZnIn2S4 heterostructures with 0.01 g g-C3N4 nanostructures was significantly improved, showing approximately 228.6 and 2.58 times higher than that of g-C3N4 nanostructures and ZnIn2S4 nanostructures, respectively. This enhancement in photocatalytic performance is attributed to the effective utilization of visible light and the efficient separation of photogenerated electron-hole pairs facilitated by the heterojunction structures. Moreover, the reusability test validated the outstanding performance of g-C3N4@ZnIn2S4 heterostructures, as they maintained high photocatalytic hydrogen production even after undergoing eight cycles without any noticeable decrease in efficiency. This study offers a promising strategy for designing and synthesizing an environmentally friendly g-C3N4@ZnIn2S4 heterojunction with potential applications in photocatalytic hydrogen evolution. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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