Fabrication of ultrathin-MoS2/Ag/AgBr composite with enhanced photocatalytic activity

被引：11
|
作者：
Zhang, Fengyuan [1 ]
Yin, Yue [1 ]
Li, Feng [1 ]
Jiang, Dongmei [1 ]
Wang, Jie [1 ]
Zhan, Qingfeng [1 ]
机构：
[1] East China Normal Univ, Dept Phys, Shanghai 200241, Peoples R China
来源：
JOURNAL OF MATERIALS SCIENCE | 2020年 / 55卷 / 05期
基金：
中国国家自然科学基金;
关键词：
SURFACE-PLASMON RESONANCE; HIGHLY EFFICIENT; MOS2; AG; GRAPHENE; PERFORMANCE; TIO2;
D O I：
10.1007/s10853-019-04089-0
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The MoS2/Ag/AgBr composite with ultrathin-MoS2 layers was prepared by the methods of ultrasonic liquid exfoliation and ion exchange. The composition and micromorphology of ultrathin-MoS2/Ag/AgBr were detected by XRD, EDS, SEM and TEM in detail. The element mapping showed that the samples were well-distributed. The MoS2 in samples and the number of plies were detected by Raman spectra specifically. The results indicated that the photocatalytic performance of the as-prepared samples would increase by 50% when the average thickness of MoS2 was about 4 nm. The enhanced photocatalytic performance of ultrathin-MoS2/Ag/AgBr composite is attributed to the modified conduction band of MoS2 by reducing the layers of MoS2 to fit the potential of O-2/O2 center dot-. In particular, this work would expand the scope of application of MoS2 in photodegradation.
引用
收藏
页码：2166 / 2175
页数：10
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