期刊
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
卷 6, 期 4, 页码 3827-3836出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jece.2018.05.032
关键词
Gold nanoparticles; Fullerene (C-60); Plasmonic sensitization; Photocatalysis; Methyl orange (MO); 4-Nitrophenol reduction
资金
- NSF grants ERC Nanotechnology-Enabled Water Treatment Center [1449500, CHE-0748913, DMRPREM-1205302, USDA2014-38422-22078]
- U.S. Department of Defense Army Research Office [64705CHREP, 67290CHREP]
- Div Of Engineering Education and Centers
- Directorate For Engineering [1449500] Funding Source: National Science Foundation
A facile method for the synthesis of gold nanoparticles (AuNPs) supported on TiO2 is reported. The average size of the TiO2 supported AuNPs was found to be about 8 nm, which was measured by the transmission electron microscopy. The TiO2 supported AuNPs exhibited enhanced photocatalytic degradation of methyl orange (MO) and catalytic reduction of 4-nitrophenol (4-NP) in water. Both the photocatalytic degradation of MO and the catalytic reduction of 4-NP were influenced by the size and the percent AuNPs loading. Compared to the pristine TiO2 the nanocomposite having 4.76 wt% AuNPs showed about twice and 132 times faster activity in the photodegradation of MO and the reduction of 4-NP, respectively The cyclic stability of the nanocomposite was examined for ten cycles and it was found that the catalyst is fairly active throughout the cycles. Further, the photocatalytic generation of hydroxyl radical (center dot OH) was confirmed through the terephthalic acid photoluminescence tests.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据