Photocatalytic degradation of azo dyes in aqueous solutions under UV irradiation using nano-strontium titanate as the nanophotocatalyst

被引：134

作者：

Karimi, Loghman ^{[1
]}

Zohoori, Salar ^{[2
]}

Yazdanshenas, Mohammad Esmail ^{[2
]}

机构：

[1] Islamic Azad Univ, Sci & Res Branch, Dept Text Engn, Tehran, Iran

[2] Islamic Azad Univ, Yazd Branch, Dept Text Engn, Tehran, Iran

来源：

JOURNAL OF SAUDI CHEMICAL SOCIETY | 2014年 / 18卷 / 05期

关键词：

Strontium titanate; Photocatalytic degradation; Azo dyes; Irradiation; UV; VISIBLE-LIGHT; WASTE-WATER; TIO2; SRTIO3; NANOPARTICLES; COMPOSITE; POWDERS; NICKEL; OXIDE;

D O I：

10.1016/j.jscs.2011.11.010

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Research on photocatalytic degradation rate of azo dyes using nano-strontium titanate in photocatalysis process was the main goal of present study. In this regard, the influence of the main operating parameters such a photocatalyst concentration, dye concentration, temperature, pH and the presence of hydrogen peroxide upon dye removal rate under UV irradiation was studied. The absorbance of samples was measured by a UV-Vis spectrophotometer. The structure and morphology of nano-powder were investigated using scanning electron microscopy and crystalline structure by X-ray diffraction spectroscopy. The results reveal that nano-strontium titanate has high and significant photocatalytic activity and in comparison with nano-titanium dioxide was superior photocatalyst. (C) 2011 Production and hosting by Elsevier B.V. on behalf of King Saud University.

引用

页码：581 / 588

页数：8

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