Synthesis of nano-ZnO by wire explosion process and its photocatalytic activity

被引：14

作者：

Ranjan, Prem ^{[1
]}

Singh, Raj Kamal ^{[2
]}

Suematsu, H. ^{[3
]}

Phillip, Ligy ^{[2
]}

Sarathi, R. ^{[1
]}

机构：

[1] IIT Madras, Dept Elect Engn, Madras 600036, Tamil Nadu, India

[2] IIT Madras, Dept Civil Engn, Madras 600036, Tamil Nadu, India

[3] Nagaoka Univ Technol, Extreme Energy Dens Res Inst, Nagaoka, Niigata 9402188, Japan

来源：

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING | 2017年 / 5卷 / 02期

关键词：

ZnO; Nanoparticles; Wire explosion; Water treatment; Methylene blue; Degradation mechanism; DEGRADATION PATHWAY; TITANIUM-DIOXIDE; METHYLENE-BLUE; WASTE-WATER; REMOVAL; DYE; NANOPARTICLES; WASTEWATERS; PERFORMANCE; DISCHARGE;

D O I：

10.1016/j.jece.2017.02.036

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Zinc oxide (ZnO) nanoparticles were produced by wire explosion process and characterized through Xray diffraction (XRD) studies and by TEM studies. The particle size analysis indicates that they follow lognormal distribution and the mean size of the ZnO nanoparticles formed is about 44 nm. Optical band gap of ZnO is found to be 3.21 eV by UV-vis diffuse reflectance spectroscopy (DRS). The synthesized ZnO nano particles were used as photo catalyst for degradation of methylene blue (MB) in aqueous solution. Nano zinc oxide of 100 mg/L was found as the optimum quantity for UV photo degradation of 10 mg/L MB. ZnO nanoparticles were verified for its reusability. The results of the study are compared with commercial ZnO nanoparticle and with Degussa P-25 TiO2. LC-MS studies were carried out to identify the intermediates and degradation pathway. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：1676 / 1684

页数：9

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