Fabrication and characterization of BiOxBry/BiOmIn coupled GCN heterojunctions with enhanced visible-light catalytic activity

Fabrication and characterization of BiOxBry/BiOmIn coupled GCN heterojunctions with enhanced visible-light catalytic activity

We report the fabrication of bismuth oxybromide/bismuth oxyiodide coupled to graphitic carbon nitride heterojunctions via a simple hydrothermal method to circumvent fast recombination of photogenerated charge carriers of pure BiOX. The obtained BiOxBry/BiOmIn/GCN with varied ratios and synthetic con...

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Bibliographic Details
Main Authors: Chung-Shin Lu, Yu-Ju Lai, Janah Shaya, Yu-Yun Lin, Fu-Yu Liu, Jia-Hao Lin, Chao-Wei Chen, Hwei-Yan Tsai, Jhen-Wei Huang, Chiing-Chang Chen
Format: Article
Language:English
Published: Elsevier 2023-11-01
Series:Catalysis Communications
Subjects:
Bismuth oxybromide
Bismuth oxyiodide
g-C3N4
Photocatalysis
CO2 reduction
Crystal violet
Online Access:http://www.sciencedirect.com/science/article/pii/S1566736723001966
Description
Summary:We report the fabrication of bismuth oxybromide/bismuth oxyiodide coupled to graphitic carbon nitride heterojunctions via a simple hydrothermal method to circumvent fast recombination of photogenerated charge carriers of pure BiOX. The obtained BiOxBry/BiOmIn/GCN with varied ratios and synthetic conditions were stable and achieved significant enhancement in visible-light driven catalytic activities for degradation of crystal violet and 2-hydroxybenzoic acid. BB2I1–200–7-10%GCN heterojunction also showed selective reduction of carbon dioxide to methane under UV–vis irradiation with 0.018 μmol/g.h yield. The photocatalytic mechanism and major active species in crystal violet decomposition by BiOxBry/BiOmIn/GCN were investigated and proposed.
ISSN:1873-3905

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