Structural, optical and photocatalytic activity of cerium doped zinc aluminate

被引：42

作者：

Sumathi, Shanmugam ^{[1
]}

Kavipriya, A. ^{[1
]}

机构：

[1] VIT Univ, Sch Adv Sci, Dept Chem, Vellore 632014, Tamil Nadu, India

来源：

SOLID STATE SCIENCES | 2017年 / 65卷

关键词：

Spinel oxide; Zinc aluminate; Photocatalytic activity; Methylene blue; Visible light; CATALYTIC-PROPERTIES; DEGRADATION; CE; TIO2; NANOPARTICLES; EVOLUTION; REMOVAL;

D O I：

10.1016/j.solidstatesciences.2017.01.003

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Zinc aluminate and cerium-doped zinc aluminate nanoparticles are synthesised by co-precipitation method. Ammonium hydroxide is used as a precipitating agent. The synthesised compounds are characterised by powder X-ray diffraction (XRD), Fourier transform Infrared spectroscopy (FT-IR), Ultraviolet diffuse reflectance spectroscopy (UV-DRS), Thermogravimetric analysis (TGA), Scanning electron microscopy (SEM) and Surface area measurements. The photocatalytic activity of zinc aluminate and cerium doped zinc aluminate nanoparticles are studied under the UV light and visible light taking methylene blue as a model pollutant. The amount of catalyst, concentration of dye solution and time are optimised under UV-light. Degradation of methylene blue under the UV:light is found to be 99% in 20 min with 10 mg of cerium doped catalyst. Compared to visible light degradation, the degradation of dye under UV-light is higher. Cerium doping in zinc aluminate (ZnAl2O4:Ce3+) increased the photocatalytic activity of zinc aluminate. (C) 2017 Elsevier Masson SAS. All rights reserved.

引用

页码：52 / 60

页数：9

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