Journal
CHEMOSPHERE
Volume 276, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chemosphere.2021.130226
Keywords
Dual Z-scheme; Ternary heterojunction; BiVO4@ZnIn2S4/Bi2Sn2O7; Core-shell structure; Photocatalysis
Categories
Funding
- National Key Research and Development Program of China [2019YFA0705200]
- National Natural Science Foundation of China [52072093, 51802058]
- Applied Technology Research and Development Program of Heilongjiang Province [GY2018ZB0046]
Ask authors/readers for more resources
The study successfully increased the efficiency of photocatalytic reactions through the preparation of a core-shell structured ternary photocatalyst, expanding the application fields of photocatalysts.
A core-shell structured dual Z-scheme ternary photocatalyst BiVO4@ZnIn2S4/Bi2Sn2O7 was fabricated via hydrothermal and heat-circumfluence strategy. With ZnIn2S4 serving as a bridge to connect BiVO4 and Bi2Sn2O7, the developed ternary catalyst displayed boosted charge transfer and spatial separation capabilities. The effect of mass ratios of BiVO4@ZnIn2S4 and Bi2Sn2O7 on photodegradation efficiency under visible light irradiation was explored. The optimal ternary heterojunction photocatalyst possessed remarkable photocatalytic rate constant for Rhodamine B (RhB) degradation, which was 63 and 12 times higher than that of BiVO4 and Bi2Sn2O7, respectively. In addition, the as-prepared ternary photocatalyst had good universality. Notably, the novel dual Z-scheme photocatalysts could improve the separating/transferring efficiency and reduction/oxidation ability of charge carriers. Meanwhile, the hierarchical structure offered sufficient reaction sites for photodegradation. This work provides a new insight into the rational design of ternary dual Z-scheme photocatalysts. (C) 2021 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available