疏水性SiO_2气凝胶吸附水溶液中有机物的研究进展

SiO2气凝胶是一种纳米多孔固体材料,比表面积大和孔隙率高的特点使其具有良好的吸附特性。常压干燥下制备出的疏水性SiO2气凝胶由于具有制备成本低,且能在潮湿环境和水溶液中使用的特点,使其在吸附水溶液中有机物领域具有广阔的市场前景。在分析疏水性二氧化硅气凝胶常压制备技术及研究现状基础上详细介绍了其在吸附水溶液中有机物领域的研究进展,最后对疏水性SiO2气凝胶吸附水溶液中有机物研究重点进行了预测和展望。

RESEARCH ON ADSORPTION OF ORGANIC COMPOUNDS FROM AQUEOUS SOLUTIONS BY HYDROPHOBIC SiO2 AEROGEL

Silica aerogel is a kind of nano porous solid material which possesses high porosity and specific surface area， providing silica aerogel with high absorptive performance． The hydrophobic silica aerogel prepared by ambient pressure drying with low preparation cost could be used in damp environment and aqueous solutions，having a broad market prospect in the field of adsorption of organic compounds in aqueous solution． The ambient preparation technology and research progress of the hydrophobic silica aerogel was analyzed in this paper． The research progress of hydrophobic silica aerogel as adsorbent for organic compounds from aqueous solutions was introduced emphatically． Last，hydrophobic silica aerogel for adsorbing organic compounds from aqueous solutions was forecasted．