Acid catalyzed synthesis of ordered bifunctionalized mesoporous organosilicas with large pore

	Acid catalyzed synthesis of ordered bifunctionalized mesoporous organosilicas with large pore
	Yang, QH; Liu, J; Yang, J; Zhang, L; Feng, ZC; Zhang, J; Li, C
刊名	microporous and mesoporous materials
	2005-01-26
卷号	77 期号:2-3 页码:257-264
关键词	periodic mesoporous ethane-silicas Brij-76 P123 adsorbent thiol
通讯作者	杨启华
产权排序	1;1
英文摘要	thiol-functionalized mesoporous ethane-silicas with large pore were synthesized by co-condensation of 1,2-bis(trimethoxy-sily)ethane (btme) with 3-mercaptopropyltrimethoxysilane (mptms) using nonionic oligomeric polymer c1h (och(2)-ch(2))(10)oh (brij-76) or poly(alkylene oxide) block copolymer (p123) as surfactant in acidic medium. the results of powder x-ray diffraction (xrd), nitrogen gas adsorption, and transmission electron microscopy (tem) show that the resultant materials have well-ordered hexagonal mesoscopic structure with uniform pore size distributions. (29)si mas nnr, (13)c cp-mas nmr. ft-ir, and uv raman spectroscopies confirm the attachment of thiol functionalities in the mesoporous ethane-sificas. the maximum content of the attached thiol group (-sh) in the mesoporous framework is 2.48mmol/g. the ordered mesoporous materials are efficient hg(2+) adsorbents with almost every -sh site accessible to hg(2+). in the presence of various kinds of heavy metal ions such as hg(2+), cd(2+), zn(2+), cu(2+) and cr(3+), the materials synthesized using poly(alkylene oxide) block cooollxmier (pluronic 123) g(2+), as surfactant show almost similar affinity to hg(2+), cd(2+), and cr(3+), while the materials synthesized using ofigomeric polymer c(18)h(37)(och(2)ch(2))(10)oh (brij-76) as surfactant exhibit high selectivity to hg(2+). (c) 2004 elsevier inc. all rights reserved.
WOS标题词	science & technology ; physical sciences ; technology
类目[WOS]	chemistry, applied ; chemistry, physical ; nanoscience & nanotechnology ; materials science, multidisciplinary
研究领域[WOS]	chemistry ; science & technology - other topics ; materials science
关键词[WOS]	channel walls ; organic groups ; silica ; adsorption ; pmos ; frameworks ; supports ; sieves ; sba-15 ; mcm-41
收录类别	SCI
原文出处	true
语种	英语
WOS记录号	WOS:000226536700019
公开日期	2010-11-30
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/92265]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Yang, QH,Liu, J,Yang, J,et al. Acid catalyzed synthesis of ordered bifunctionalized mesoporous organosilicas with large pore[J]. microporous and mesoporous materials,2005,77(2-3):257-264.
APA	Yang, QH.,Liu, J.,Yang, J.,Zhang, L.,Feng, ZC.,...&Li, C.(2005).Acid catalyzed synthesis of ordered bifunctionalized mesoporous organosilicas with large pore.microporous and mesoporous materials,77(2-3),257-264.
MLA	Yang, QH,et al."Acid catalyzed synthesis of ordered bifunctionalized mesoporous organosilicas with large pore".microporous and mesoporous materials 77.2-3(2005):257-264.