环境工程学报2012,Vol.6Issue(5):1653-1657,5.
VOCs和水在Y型分子筛表面的竞争吸附
Competitive adsorption of VOCs and water on zeolites Y
摘要
Abstract
Ultra-stable Y zeolites with different Si/Al ratios were prepared by high-temperature hydrothermal technology,the competitive adsorption of VOCs(benzene,toluene,o-xylene,styrene and ethyl acetate) and water on the surface of Y-zeolites was investigated.The results showed that the ability of selective adsorption for VOCs was enhanced with the increase of Si/Al ratio of zeolite.On the surface of low silica zeolites Y,only the highly polar VOCs(its dipole moment is 1.0) have ability of competitive adsorption with water.However,the surface of high silica zeolite Y showed very strong competitive adsorption for lowly polar VOCs(its dipole moment is between 0 and 0.5).关键词
VOCs/竞争吸附/Y型分子筛/疏水性Key words
VOCs/competitive adsorption/zeolite Y/hydrophobic分类
资源环境引用本文复制引用
周瑛,卢晗锋,王稚真,陈银飞..VOCs和水在Y型分子筛表面的竞争吸附[J].环境工程学报,2012,6(5):1653-1657,5.基金项目
浙江省科技厅重大专项 ()
浙江省自然科学基金资助项目 ()