Ionic liquid-induced strategy for porous perovskite-like PbBiO2Br photocatalysts with enhanced photocatalytic activity and mechanism insight

Bin Wang; Jun Di; Pengfei Zhang; Jiexiang Xia; Sheng Dai; Huaming Li

doi:10.1016/j.apcatb.2016.12.049

Ionic liquid-induced strategy for porous perovskite-like PbBiO₂Br photocatalysts with enhanced photocatalytic activity and mechanism insight

Bin Wang, Jun Di, Pengfei Zhang, Jiexiang Xia, Sheng Dai, Huaming Li

Chemical Sciences Division

Research output: Contribution to journal › Article › peer-review

102 Scopus citations

Abstract

A novel perovskite-like PbBiO₂Br uniform porous microspheres photocatalyst was successfully prepared via ethanol glycol (EG)-assisted solvothermal method in the presence of reactable ionic liquid 1-hexadecyl-3-methylimidazolium bromide ([C₁₆mim]Br) and polyvinyl-pyrrolidone (PVP) system. During the synthetic process, the ionic liquid-PVP complex system acts as the solvent, reactant and template simultaneously, and demonstrates excellent control capability for PbBiO₂Br porous microstructure. The photocatalytic activity of the PbBiO₂Br materials was evaluated by colorless antibiotic agent ciprofloxacin (CIP), endocrine disrupter bisphenol A (BPA), and colored rhodamine (RhB), methylene blue (MB) as target pollutants under visible light irradiation. After several characterizations, the influencing factor of the promotional photocatalytic activity for PbBiO₂Br photocatalysts was discussed in detail. Through the ESR and trapping experiment verification, the superoxide radical (O₂[rad]⁻) and hole (h⁺) were the main active species for the photocatalysis process.

Original language	English
Pages (from-to)	127-135
Number of pages	9
Journal	Applied Catalysis B: Environmental
Volume	206
DOIs	https://doi.org/10.1016/j.apcatb.2016.12.049
State	Published - 2017

Funding

This work was financially supported by the National Nature Science Foundation of China (Nos. 21476098, 21471069 and 21576123), and International Postdoctoral Exchange Fellowship Program of China Postdoctora1 Council (No. 20150060). S. Dai was sponsored by the Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences, U.S. Department of Energy.

Funders	Funder number
International Postdoctoral Exchange Fellowship Program of China Postdoctora1 Council	20150060
National Nature Science Foundation of China	21576123, 21471069, 21476098
Office of Basic Energy Sciences
U.S. Department of Energy
Chemical Sciences, Geosciences, and Biosciences Division

Keywords

Ionic liquid
PbBiOBr microspheres
Photocatalysts
Visible light irradiation

Access to Document

10.1016/j.apcatb.2016.12.049

Cite this

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title = "Ionic liquid-induced strategy for porous perovskite-like PbBiO2Br photocatalysts with enhanced photocatalytic activity and mechanism insight",

abstract = "A novel perovskite-like PbBiO2Br uniform porous microspheres photocatalyst was successfully prepared via ethanol glycol (EG)-assisted solvothermal method in the presence of reactable ionic liquid 1-hexadecyl-3-methylimidazolium bromide ([C16mim]Br) and polyvinyl-pyrrolidone (PVP) system. During the synthetic process, the ionic liquid-PVP complex system acts as the solvent, reactant and template simultaneously, and demonstrates excellent control capability for PbBiO2Br porous microstructure. The photocatalytic activity of the PbBiO2Br materials was evaluated by colorless antibiotic agent ciprofloxacin (CIP), endocrine disrupter bisphenol A (BPA), and colored rhodamine (RhB), methylene blue (MB) as target pollutants under visible light irradiation. After several characterizations, the influencing factor of the promotional photocatalytic activity for PbBiO2Br photocatalysts was discussed in detail. Through the ESR and trapping experiment verification, the superoxide radical (O2[rad]−) and hole (h+) were the main active species for the photocatalysis process.",

keywords = "Ionic liquid, PbBiOBr microspheres, Photocatalysts, Visible light irradiation",

author = "Bin Wang and Jun Di and Pengfei Zhang and Jiexiang Xia and Sheng Dai and Huaming Li",

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year = "2017",

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AU - Dai, Sheng

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