文献类型：期刊文献

中文题名：紫外/臭氧法在脱除沸石有机模板剂中的应用

英文题名：Application of UV/ozone Treatment to the Removal of the Organic Template from Zeolites

作者：解丽丽[1];袁昊[1];胡柳花[2];金杏妹[2];吴秀华[1];王利军[1];田震[1];李庆华[1]

机构：[1]上海第二工业大学环境工程系,上海201209;[2]华东理工大学工业催化研究所,上海200237

年份：2007

卷号：65

期号：20

起止页码：2285

中文期刊名：化学学报

外文期刊名：Acta Chimica Sinica

收录：CSTPCD;;Scopus;北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

基金：国家自然科学基金青年基金(No.50503011);上海市"浦江人才计划"(No.05PG14051);上海市重点学科建设项目(No.P1701);上海市教委重点项目(No.06ZZ95)资助项目.

语种：中文

中文关键词：沸石;紫外/臭氧法;有机模板剂

外文关键词：zeolites; UV/ozone; organic template

摘要：选取LTA,FAU,BETA,MFI和MEL型沸石,研究紫外/臭氧法在沸石有机模板剂脱除中的应用,并与传统高温焙烧法比较,考察两种方法对有机模板剂的脱除能力.采用XRD,FT-IR,BET等方法对脱除模板剂前后的沸石样品进行表征,结果表明紫外/臭氧法是一种低温有效除去沸石模板剂的方法.Beta,silicalite-1和silicalite-2沸石在紫外光照后相应的模板剂四乙基氢氧化铵、四丙基氢氧化铵和四丁基氢氧化铵已彻底脱除,A和Y型沸石中分别有27.5和6.2wt%的四甲基氢氧化铵模板剂残留,这主要是受其特殊β笼结构的限制而引起的.
UV/ozone treatment was used to remove the organic templates from LTA, FAU, BETA, MFI and MEL type zeolites. High temperature calcination method was also used as a comparison. Zeolite sam- pies were characterized by XRD, FT-IR, BET, etc. The results showed that this UV/ozone treatment was an effective method to remove the templates from zeolites under mild conditions. The TEA＋, TPA＋ and TBA＋ template cations were completely decomposed and eliminated from the corresponding zeolite beta, silicalite-1 and silicalite-2. Whereas, a trace amount of TMA＋ template cations still remained in the UV/ozone treated zeolite A （27.5 wt%） and Y （6.2 wt%）. This is probably due to the existence of small β cages in the zeolites A and Y.