Effect of surfactants on the formation of onion-like mesoporous materials and their adsorption properties
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- 作者：Xianglin Yu ; Biyu Zhang ; Cong Rao ; Yuan He ; Xiaojiao Chen…
- 刊名：Journal of Porous Materials
- 出版年：2016
- 出版时间：August 2016
- 年：2016
- 卷：23
- 期：4
- 页码：1075-1083
- 全文大小：1,796 KB
- 刊物类别：Chemistry and Materials Science
- 刊物主题：Chemistry
Catalysis
Characterization and Evaluation Materials
Physical Chemistry - 出版者：Springer Netherlands
- ISSN：1573-4854
- 卷排序：23
文摘
To reduce the toxicity of mesoporous materials in the process of preparation and improve its order, onion-like mesoporous silica was successfully assembled through hydrothermal synthesis, using tetraethoxysilane as silica source, P123 surfactant as template, and environment-friendly span80 as auxiliary agent in aqueous media at different mass ratios (span80/P123 = 10, 15, 20, 25 and 30 %). Multiple characterization technologies such as FT-IR, SEM, TEM and N2 isothermal adsorption–desorption suggested that the onion-like mesoporous materials could be formed when the mass ratios of span80/P123 = 10, 15, 20, 25 %. When the mass ratio of span80/P123 reached 30 %, the material was with foam morphology. The adsorption experiments showed that all samples exhibited high ability to absorb methylene blue (MB). Our success in synthesizing the onion-like mesoporous materials using environment-friendly agent could provide a new route to the morphology control of mesoporous materials.KeywordsMesoporous silicaOnion-like morphologyAdsorptionMethylene blue