Sol-gel synthesis of Mn2O3/Al2O3/SiO2 hybrid nanocomposite and application for removal of organic dye

被引：34
作者：
Motlagh, Mahboube Mohaghegh [1 ]
Hassanzadeh-Tabrizi, S. A. [2 ]
Saffar-Teluri, Ali [3 ]
机构：
[1] Islamic Azad Univ, Najafabad Branch, Dept Mat Engn, Najafabad, Isfahan, Iran
[2] Islamic Azad Univ, Najafabad Branch, Young Researchers & Elite Club, Najafabad, Isfahan, Iran
[3] Islamic Azad Univ, Najafabad Branch, Dept Chem, Fac Sci, Najafabad, Isfahan, Iran
来源：
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY | 2015年 / 73卷 / 01期
关键词：
Nanocomposites; Sol-gel synthesis; Dye removal; Transmission electron microscopy; AZO DYES; COMPOSITE; NANOPOWDER; EFFICIENCY; WATER; AREA;
D O I：
10.1007/s10971-014-3487-1
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Nanocomposite of Mn2O3/Al2O3/SiO2 was prepared through an in situ sol-gel process, in which Mn2O3 nanocrystals were dispersed in the silica-alumina amorphous matrix. The synthesized products were studied by X-ray diffraction, thermogravimetric and differential thermal analysis, Brunauer-Emmett-Teller surface area analysis, UV-Vis spectroscopy and transmission electron microscopy. The nanocomposite was applied as a novel adsorbent for removal of methylene blue dye and the effect of heat treatment and contact time were studied. The results showed that nano-Mn2O3 particles were distributed on the surface of Al2O3/SiO2 and formed an activated surface charge. In addition, it was found that the nanocomposites removal rate strongly depended on the heat-treatment of absorbent.
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页码：9 / 13
页数：5
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