Commercial ZnO and its hybrid with Ag nanoparticles: Photocatalytic performance and relationship with structure

被引:14
作者
Dong, Yuying [1 ]
Jiao, Yanqing [1 ]
Jiang, Baojiang [1 ]
Tian, Chungui [1 ]
机构
[1] Heilongjiang Univ, Key Lab Funct Inorgan Mat Chem, Minist Educ Peoples Republ China, Harbin 150080, Peoples R China
基金
中国国家自然科学基金;
关键词
ZnO; Photocatalysis; Ag nanoparticles; Hybrid; Surface defect; VISIBLE-LIGHT; HYDROTHERMAL SYNTHESIS; FACILE SYNTHESIS; TIO2; EFFICIENT; GROWTH; CRYSTALLINITY; MORPHOLOGIES; PARTICLES; STABILITY;
D O I
10.1016/j.cplett.2017.04.100
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The excellent photocatalytic performance of a commercial ZnO (C-ZnO-1) was demonstrated. This ZnO showed approximately 3.8, 7.4 and 5.2 times greater activity than P25 TiO2 for the degradation of rhodamine B, methyl orange and methyl blue, respectively. After compounding with Ag, the catalyst showed record-high activities for the degradation of the three dyes (approximately 9.5, 13, and 50 times that of P25). The high activity of C-ZnO-1 is attributed to the low concentration of bulk defects (i.e., a high degree of crystallinity) and the relatively high number of surface defects (i.e., a higher ratio of surface hydroxyl oxygen). (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码:137 / 145
页数:9
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