γ-Fe2O3 nanoparticles: An easily recoverable effective photo-catalyst for the degradation of rose bengal and methylene blue dyes in the waste-water treatment plant

被引：146

作者：

Dutta, Amit Kumar ^{[1
]}

Maji, Swarup Kumar ^{[1
]}

Adhikary, Bibhutosh ^{[1
]}

机构：

[1] Bengal Engn & Sci Univ, Dept Chem, Howrah 711103, W Bengal, India

来源：

MATERIALS RESEARCH BULLETIN | 2014年 / 49卷

关键词：

Magnetic materials; Nanostructures; Thermogravimetric analysis (TGA); Catalytic properties; Optical properties; HIGH PHOTOCATALYTIC ACTIVITY; TEMPLATE-FREE SYNTHESIS; HETEROGENEOUS PHOTOCATALYSIS; THERMAL-DECOMPOSITION; ORGANIC POLLUTANTS; TIO2; COMPLEXES; PRECURSOR; KINETICS; CRYSTAL;

D O I：

10.1016/j.materresbull.2013.08.024

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

gamma-Fe2O3 nanoparticles (NPs) were synthesized from a single-source precursor complex [Fe3O(C6H5-COO)(6)(H2O)(3)[NO3 by a simple thermal decomposition process and have been characterized by X-ray diffraction analysis (XRD), transmission electron microscopy (TEM) and UV-vis spectroscopic techniques. The NPs were highly pure and well crystallized having hexagonal morphology with an average particle size of 35 nm. The prepared gamma-Fe2O3 (maghemite) NPs show effective photo-catalytic activity toward the degradation of rose bengal (RB) and methylene blue (MB) dyes under visible light irradiation and can easily be recoverable in the presence of magnetic field for successive re-uses. The possible photo-catalytic decomposition mechanism is discussed through the detection of hydroxyl radical (OH center dot) by terephthalic acid photo-luminescence probing technique. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：28 / 34

页数：7

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