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A new p-metal-n structure AgBr-Ag-BiOBr with superior visible-light-responsive catalytic performance.
Chem Asian J. 2015 Mar; 10(3):687-93.CA

Abstract

A novel visible-light-driven AgBr-Ag-BiOBr photocatalyst was synthesized by a facile hydrothermal method. Taking advantage of both p-n heterojunctions and localized surface plasmon resonance, the p-metal-n structure exhibited a superior performance concerning degradation of methyl orange under visible-light irradiation (λ>420 nm). A possible photodegradation mechanism in the presence of AgBr-Ag-BiOBr composites was proposed, and the radical species involved in the degradation reaction were investigated. HO2(⋅)/(⋅)O2(-) played the same important role as (⋅)OH in the AgBr-Ag-BiOBr photocatalytic system, and both the electron and hole were fully used for degradation of organic pollutants. A dual role of metallic Ag in the photocatalysis was proposed, one being surface plasmon resonance and the other being an electron-hole bridge. Due to the distinctive p-metal-n structure, the visible-light absorption, the separation of photogenerated carriers and the photocatalysis efficiency were greatly enhanced.

Authors+Show Affiliations

Key Laboratory of Food Colloids and Biotechnology (Ministry of Education of China), School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122 (China). dongym@jiangnan.edu.cn.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

25556558

Citation

Dong, Yuming, et al. "A New P-metal-n Structure AgBr-Ag-BiOBr With Superior Visible-light-responsive Catalytic Performance." Chemistry, an Asian Journal, vol. 10, no. 3, 2015, pp. 687-93.
Dong Y, Feng C, Zhang J, et al. A new p-metal-n structure AgBr-Ag-BiOBr with superior visible-light-responsive catalytic performance. Chem Asian J. 2015;10(3):687-93.
Dong, Y., Feng, C., Zhang, J., Jiang, P., Wang, G., Wu, X., & Miao, H. (2015). A new p-metal-n structure AgBr-Ag-BiOBr with superior visible-light-responsive catalytic performance. Chemistry, an Asian Journal, 10(3), 687-93. https://doi.org/10.1002/asia.201403217
Dong Y, et al. A New P-metal-n Structure AgBr-Ag-BiOBr With Superior Visible-light-responsive Catalytic Performance. Chem Asian J. 2015;10(3):687-93. PubMed PMID: 25556558.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - A new p-metal-n structure AgBr-Ag-BiOBr with superior visible-light-responsive catalytic performance. AU - Dong,Yuming, AU - Feng,Cuiyun, AU - Zhang,Jingjing, AU - Jiang,Pingping, AU - Wang,Guangli, AU - Wu,Xiuming, AU - Miao,Hongyan, Y1 - 2014/12/30/ PY - 2014/10/24/received PY - 2015/1/6/entrez PY - 2015/1/6/pubmed PY - 2015/1/6/medline KW - BiOBr KW - composite materials KW - photocatalysis KW - photodegradation KW - silver KW - visible light SP - 687 EP - 93 JF - Chemistry, an Asian journal JO - Chem Asian J VL - 10 IS - 3 N2 - A novel visible-light-driven AgBr-Ag-BiOBr photocatalyst was synthesized by a facile hydrothermal method. Taking advantage of both p-n heterojunctions and localized surface plasmon resonance, the p-metal-n structure exhibited a superior performance concerning degradation of methyl orange under visible-light irradiation (λ>420 nm). A possible photodegradation mechanism in the presence of AgBr-Ag-BiOBr composites was proposed, and the radical species involved in the degradation reaction were investigated. HO2(⋅)/(⋅)O2(-) played the same important role as (⋅)OH in the AgBr-Ag-BiOBr photocatalytic system, and both the electron and hole were fully used for degradation of organic pollutants. A dual role of metallic Ag in the photocatalysis was proposed, one being surface plasmon resonance and the other being an electron-hole bridge. Due to the distinctive p-metal-n structure, the visible-light absorption, the separation of photogenerated carriers and the photocatalysis efficiency were greatly enhanced. SN - 1861-471X UR - https://www.unboundmedicine.com/medline/citation/25556558/A_new_p_metal_n_structure_AgBr_Ag_BiOBr_with_superior_visible_light_responsive_catalytic_performance_ L2 - https://doi.org/10.1002/asia.201403217 DB - PRIME DP - Unbound Medicine ER -
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