Surface modification of silica gel by interfacial polyelectrolyte   complexes

CORC > 北京大学 > 化学与分子工程学院

	Surface modification of silica gel by interfacial polyelectrolyte complexes
	Zhang, YJ ; Cao, WX
刊名	adsorption science technology
	1999
关键词	DIAZO-RESINS ADSORPTION FILMS MULTILAYER
英文摘要	Two types of modified silica gel have been prepared by constructing layers of a thermolabile interfacial polyelectrolyte complex on the surface of silica gel using diazo resin (DR) as the polycation and poly(sodium styrene sulphonate) (PSS) as the polyanion. Dye adsorption from aqueous solution was employed to estimate the surface properties of the silica gels. It is believed that the diazo resin is anchored on the surface of the silica gel after thermal treatment through covalent bond formation. The adsorption ability of the surface for cationic dyes increases after such modification. Anionic dyes, which cannot be adsorbed by the unmodified silica gel. can be adsorbed by the modified ones. This indicates that a hydrophobic surface has been built up on the silica gel.; Chemistry, Applied; Chemistry, Physical; Engineering, Chemical; SCI(E); EI; 1; ARTICLE; 6; 459-467; 17
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/389718]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Zhang, YJ,Cao, WX. Surface modification of silica gel by interfacial polyelectrolyte complexes[J]. adsorption science technology,1999.
APA	Zhang, YJ,&Cao, WX.(1999).Surface modification of silica gel by interfacial polyelectrolyte complexes.adsorption science technology.
MLA	Zhang, YJ,et al."Surface modification of silica gel by interfacial polyelectrolyte complexes".adsorption science technology (1999).