Near-infrared light photocatalytic ability for degradation of tetracycline using carbon dots modified Ag/AgBr nanocomposites

被引：61
作者：
Shi, Weilong [1 ,2 ]
Lv, Huachang [3 ]
Yuan, Songliu [1 ]
Huang, Hui [2 ]
Liu, Yang [2 ]
Kang, Zhenhui [2 ]
机构：
[1] Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Peoples R China
[2] Soochow Univ, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Inst Funct Nano & Soft Mat FUNSOM, 199 Renai Rd, Suzhou 215123, Jiangsu, Peoples R China
[3] Jiangsu United Chem Co Ltd, East Of Yangzhong Bridge 212212, Yangzhong, Peoples R China
来源：
SEPARATION AND PURIFICATION TECHNOLOGY | 2017年 / 174卷
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
CDs; Ag/AgBr; Near-infrared; Nanocomposites; Photocatalysis; HIGHLY EFFICIENT; QUANTUM DOTS; COMPOSITE; NANODOTS; SPECTRUM; FACILE; METAL; DESTRUCTION; UV;
D O I：
10.1016/j.seppur.2016.10.005
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Ever-increasing environmental concerns have stimulated great progresses in photocatalytic technology in collection with the environmental remediation and solar energy utilization. In this study, carbon dots (CDs)/Ag/AgBr nanocomposites were prepared via a facile precipitation-photoreduction method. Moreover, CDs/Ag/AgBr nanocomposites show a strong absorbance in the full solar spectrum due to the interaction of Ag nanoparticles (Ag-NPs) and CDs. Meanwhile, compared with pristine AgBr and Ag/AgBr nanoparticles, a dramatic enhancement in the degradation of tetracycline under near-infrared light irradiation is observed over the CDs/Ag/AgBr nanocomposites. Significantly, the extraordinary photocatalytic performance is attributed to the extended absorption in the full spectrum, effective charge separation, and synergistic enhancement induced by surface plasmon resonance of Ag-NPs and the photogenerated change transfer properties of CDs in the complex nanocomposites. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：75 / 83
页数：9
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