期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 16, 期 11, 页码 3497-3503出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.200902799
关键词
microporous materials; nanostructures; silicates; water treatment
资金
- National Basic Research Program of China [2007CB936604]
- Natural Science Foundation of China [50302010]
- Scientific Research Foundation
- State Education Ministry
- Special Foundation of President of Hefei Institutes of Physical Science
- Chinese Academy of Sciences
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.
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