Abstract
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. © 2023 The Authors
Original language | British English |
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Journal | Catal. Commun. |
Volume | 184 |
DOIs | |
State | Published - 2023 |
Keywords
- 2-hydroxybenzoic acid
- Bismuth oxybromide
- Bismuth oxyiodide
- CO<sub>2</sub> reduction
- Crystal violet
- g-C<sub>3</sub>N<sub>4</sub>
- Photocatalysis
- Bismuth compounds
- Carbon dioxide
- Carbon nitride
- Catalyst activity
- Fabrication
- Photocatalytic activity
- CO 2 reduction
- Fabrication and characterizations
- G-C3N4
- Graphitic carbon nitrides
- Hydroxybenzoic acids
- Visible light
- Heterojunctions