Chemical-Template Synthesis of Micro/Nanoscale Magnesium Silicate Hollow Spheres for Waste-Water Treatment

被引：214

作者：

Wang, Yongqiang ^{[1
]}

Wang, Guozhong ^{[1
]}

Wang, Hongqiang ^{[1
]}

Liang, Changhao ^{[1
]}

Cai, Weiping ^{[1
]}

Zhang, Lide ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Solid State Phys, Anhui Key Lab Nanomat & Nanotechnol, Key Lab Mat Phys, Hefei 230031, Peoples R China

来源：

CHEMISTRY-A EUROPEAN JOURNAL | 2010年 / 16卷 / 11期

关键词：

microporous materials; nanostructures; silicates; water treatment; AQUEOUS-SOLUTIONS; REACTIVE DYE; AZO DYES; ADSORPTION; IONS; COAGULATION; DEGRADATION; WASTEWATERS; FABRICATION; POLLUTANTS;

D O I：

10.1002/chem.200902799

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Micro/nanoscale magnesium silicate hollow spheres were synthesized by using silica colloidal spheres as a chemical template in one pot. The hollow spherical structure, consisting of well-separated nanoscale units, was microscale as a whole and could be easily handled in solution. The as-synthesized magnesium silicate hollow spheres with large specific surface area showed availability for the removal of organic and heavy-metal ions efficiently from waste water. Importantly, the micro/nanoscale magnesium silicate hollow spheres that had adsorbed organic pollutants could be regenerated by calcination and used repeatedly in pollutant removal. Magnesium silicate hollow spheres synthesized by a scaled-up chemical template method may have potential applications in removing cationic dyes and heavy-metal ions from waste water.

引用

页码：3497 / 3503

页数：7

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