NDLI: An efficient dye-sensitized BiOCl photocatalyst for air and water purification under visible light irradiation.

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An efficient dye-sensitized BiOCl photocatalyst for air and water purification under visible light irradiation.

Content Provider	Semantic Scholar
Author	Li, Guisheng Jiang, Bo Xiao, Shuning Lian, Zichao Zhang, Dieqing Yu, Jimmy C. Li, Hexing
Copyright Year	2014
Abstract	A photosensitized BiOCl catalyst was found to be effective for photocatalytic water purification and air remediation under visible light irradiation (λ > 420 nm). Prepared by a solvothermal method, the BiOCl crystals possessed a 3D hierarchical spherical structure with the highly active facets exposed. When sensitized by Rhodamine B (RhB), the photocatalyst system was more active than N-doped TiO2 for breaking down 4-chlorophenol (4-CP, 200 ppm) and nitric monoxide (NO, 500 ppb). The high activity could be attributed to the hierarchical structure (supplying feasible reaction tunnels for adsorption and transition of reactants or products) and the efficient exposure of the {001} facets. The former provides an enriched oxygen atom density that promotes adsorption of cationic dye RhB, and creates an oxygen vacancy state. The HO˙ and ˙O2(-) radicals produced from the injected electrons from the excited dye molecule (RhB*) into the conduction band of BiOCl were responsible for the excellent photocatalytic performance of the RhB-BiOCl system.
File Format	PDF HTM / HTML
DOI	10.1039/c4em00196f
PubMed reference number	24934740
Journal	Medline
Volume Number	16
Issue Number	8
Alternate Webpage(s)	http://pubs.rsc.org/en/content/getauthorversionpdf/C4EM00196F
Alternate Webpage(s)	http://www.rsc.org/suppdata/em/c4/c4em00196f/c4em00196f1.pdf
Alternate Webpage(s)	https://doi.org/10.1039/c4em00196f
Journal	Environmental science. Processes & impacts
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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