Facile synthesis of novel ZnO/Nd-doped BiOBr composites with boosted visible light photocatalytic degradation of phenol

被引：27
|
作者：
Sin, Jin-Chung [1 ,4 ]
Lim, Chin-Aik [1 ]
Lam, Sze-Mun [2 ,4 ]
Mohamed, Abdul Rahman [3 ]
Zeng, Honghu [4 ]
机构：
[1] Univ Tunku Abdul Rahman, Dept Petrochem Engn, Fac Engn & Green Technol, Jalan Univ, Kampar 31900, Perak, Malaysia
[2] Univ Tunku Abdul Rahman, Dept Environm Engn, Fac Engn & Green Technol, Jalan Univ, Kampar 31900, Perak, Malaysia
[3] Univ Sains Malaysia, Sch Chem Engn, Engn Campus, Nibong Tebal 14300, Pulau Pinang, Malaysia
[4] Guilin Univ Technol, Coll Environm Sci & Engn, Guilin 541004, Peoples R China
来源：
MATERIALS LETTERS | 2019年 / 248卷
关键词：
Semiconductors; Composite materials; Optical materials and properties; Nanocrystalline materials; NANOSTRUCTURES; DYE;
D O I：
10.1016/j.matlet.2019.03.129
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Novel ZnO/Nd-BiOBr composites were facilely synthesized via a surfactant-free chemical approach. The ZnO nanoflakes were loaded on the surface of Nd-BiOBr nanosheets with intimately contact. The synthesized ZnO/Nd-BiOBr demonstrated significantly higher visible light photocatalytic degradation of phenol compared to those of ZnO, BiOBr and Nd-BiOBr. The enhanced photocatalytic activity of ZnO/Nd-BiOBr was attributed to the effective separation of photogenerated electron-hole in the heterojunction structure as proven via the photoluminescence spectra. In addition, the ZnO/Nd-BiOBr showed good stability in phenol degradation for four irradiation cycles. The radical trapping experiments indicated that the hydroxyl radicals played key role in the photodegradation process. (C) 2019 Elsevier B.V. All rights reserved.
引用
收藏
页码：20 / 23
页数：4
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