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Fabrication of wool ball-like F-doped BiOCl0.4Br0.3I0.3 composite for effective sulfamethazine photocatalytic degradation
- Source :
- Materials Research Bulletin. 130:110937
- Publication Year :
- 2020
- Publisher :
- Elsevier BV, 2020.
-
Abstract
- Novel material wool ball-like F-doped BiOCl0.4Br0.3I0.3 has been successfully fabricated via a facile solvothermal method. In this work, the as-synthesized catalyst was characterized to examine the structure, morphology, optical and electrochemical properties. The catalyst was used in sulfamethazine degradation under visible-light irradiation. The optimized photocatalyst F-BiOCl0.4Br0.3I0.3 (Bi:F = 3:2) exhibits superior activity and the degradation efficiency can reach 99.6 % in pH 6 within 60 min. There are two reasons to explain it: (i) The F-BiOCl0.4Br0.3I0.3 has narrow band gap; (ii) Wool ball-like morphology can cause multiple reflections of the irradiated light, and availably prolong the action time. The primary oxidative species are holes and superoxide radicals. The possible degradation mechanism was discussed based on the experimental results.
- Subjects :
- Materials science
Fabrication
Mechanical Engineering
Doping
Composite number
02 engineering and technology
010402 general chemistry
021001 nanoscience & nanotechnology
Condensed Matter Physics
Electrochemistry
01 natural sciences
0104 chemical sciences
Catalysis
Chemical engineering
Mechanics of Materials
Wool
Photocatalysis
General Materials Science
Irradiation
0210 nano-technology
Subjects
Details
- ISSN :
- 00255408
- Volume :
- 130
- Database :
- OpenAIRE
- Journal :
- Materials Research Bulletin
- Accession number :
- edsair.doi...........8e6f397c08ab5b5c71fc666204183757