柱撑膨润土的制备及吸附性能研究  

Synthesis and Adsorption Properties of Pillared Bentonite

作　　者：王昕[1] 盛楷[1] 任广军[1] 

机构地区：[1]沈阳理工大学环境与化学工程学院,辽宁沈阳110159

出　　处：《沈阳理工大学学报》2010年第6期85-87,91,共4页Journal of Shenyang Ligong University

基　　金：辽宁省自然科学基金项目(20072048)

摘　　要：在[OH-]/[Al3+]=2.4的反应条件下,利用Al3+与碱液反应制备出聚合羟基Al离子,并由此和溴化十六烷基三甲胺制备出无机、有机和无机-有机柱撑膨润土。XRD-衍射数据表明,经柱撑后的膨润土层间距明显增大,达1.9nm以上,红外光谱分析也表明,钠基膨润土经柱撑后,柱化剂进入了膨润土层间。研究了无机、有机和无机-有机柱撑膨润土对对硝基苯酚的吸附去除性能,结果表明:三种柱撑膨润土对有机物的去除效果明显高于膨润土原土,当投土量为0.2g时,对对硝基苯酚的吸附去除率分别为86.18%、97.26%、90.81%.Under the reaction condition that/=2.4,polymerized hydroxyl Al ion prepared by Al3＋ and alkali liquor and thereby inorgano pillared bentonite,organo pillared bentonite and inorgano-organo pillared bentonite prepared by acetyl trim ethylamine bromide（CTMAB）.XRD result indicates that the interlayer spacing of bentonite is increased obviously and reaches to 1.9 nm or more.IR also indicated that Na-bentonite after polarization,pillaring species enter into the interlayer of bentonites.After studying the removing effect of inorgano-pillared bentonite,organo-pillared bentonite and inorgano-organo-pillared bentonite on the above four kinds of organism,the experimental result showed that the adsorption behavior of 3 kinds of pillared bentonites on organism is much better than raw bentonite.When dropping 0.2g,86.77%、97.26%、90.81% of nitrophenol was adsorbed.

关 键 词：柱撑膨润土 XRD FI-IR 吸附 

分 类 号：X781.1[环境科学与工程—环境工程]