One-step in-situ fabrication of silver-modified Cu2O crystals with enhanced visible photocatalytic activity

被引：10
|
作者：
Li, Junqi [1 ]
Sun, Long [1 ]
Yan, Ying [1 ]
Zhu, Zhenfeng [1 ]
机构：
[1] Shaanxi Univ Sci & Technol, Sch Mat Sci & Engn, Xian 710021, Peoples R China
来源：
MICRO & NANO LETTERS | 2016年 / 11卷 / 07期
基金：
中国国家自然科学基金;
关键词：
silver; copper compounds; catalysis; photochemistry; semiconductor materials; semiconductor growth; nanoparticles; X-ray diffraction; scanning electron microscopy; ultraviolet spectra; visible spectra; transmission electron microscopy; organic compounds; adhesion; crystal growth from solution; charge transfer states; one-step in-situ fabrication; silver-modified cuprous oxide crystals; visible photocatalytic activity; facile one-step in-situ Ag-loading reaction; UV-visible diffuse reflectance spectra; methyl orange aqueous solution; standard pollutant; visible light irradiation; silver nanoparticles; charge transfer; excited electron-hole pairs; adherence; temperature 293 K to 298 K; Ag-Cu2O;
D O I：
10.1049/mnl.2015.0530
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Silver-modified cuprous oxide (Cu2O) crystals (SMCCs) were successfully created by a facile one-step in-situ Ag-loading reaction under room temperature. The samples were studied by X-ray diffraction, scanning electron microscopy, UV-vis diffuse reflectance spectra and transmission electron microscopy. The photocatalytic performance of the SMCCs were estimated by using methyl orange aqueous solution as a standard pollutant under visible light irradiation. As a result, the SMCCs show a higher photocatalytic activity than the pure phase Cu2O. The silver nanoparticles which adhered on the surface of Cu2O of different size and content can greatly effects the photocatalytic efficiency. The enhanced photocatalytic activity owed to the effective charge transfer of excited electron-hole pairs by loading Ag.
引用
收藏
页码：363 / 365
页数：3
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