Enhanced Photocatalytic Performance of Chromium Doped Zinc Oxide Nanoparticles

被引：11
|
作者：
Ray, Rajeev [1 ]
Kumar, Ashavani [1 ]
Paul, A. K. [2 ]
Tyagi, Sachin [3 ]
机构：
[1] Natl Inst Technol, Kurukshetra, Haryana, India
[2] CSIR Cent Sci Instruments Org, Chandigarh, India
[3] CSIR Cent Sci Instruments Org, Dept Ubiquitous Analyt Tech, Chandigarh 160030, India
来源：
TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS | 2016年 / 69卷 / 05期
关键词：
Photo-catalytic; Degradation; Chromium; VISIBLE-LIGHT; ZNO NANOPARTICLES; METHYL-ORANGE; DEGRADATION; TIO2; NANOMATERIALS; DEPENDENCE; BLUE;
D O I：
10.1007/s12666-015-0618-5
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Pure and chromium doped ZnO nanoparticles were successfully synthesized by eco-friendly and cost effective sol-gel technique. Structural, morphological and optical properties of pure and Cr doped ZnO nanoparticles were analyzed by X-ray diffraction, transmission electron microscope, and UV-vis spectroscopic techniques, respectively. The crystallite size of pure ZnO nanoparticles were observed to decrease from 29 to 24 nm as dopant concentration was increased to 3 %. Band gap of pure ZnO nanoparticles were also observed to decrease from 3.5 to 3.37 eV with increase in dopant concentration. The photo-catalytic degradation of methyl blue dye under UV irradiation was examined for synthesized samples. The chromium doped zinc oxide nanoparticles were found to give enhanced photo degradation efficiency (75.5 %) than the pure zinc oxide nanoparticles (51.2 %).
引用
收藏
页码：1043 / 1048
页数：6
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