SAPO-34处理方法对吸附性能的影响  

Effects of SAPO-34 Dealing Method on Adsorption Property

作　　者：王利军[1] 赵海涛[2] 郝志显[2] 袁昊[1] 解丽丽[1] 田震[1] 陈胜文[1] 王继芬[1] 李庆华[1] 

机构地区：[1]上海第二工业大学环境工程系环境功能材料实验室,上海201209 [2]同济大学化学系,上海200092

出　　处：《化学学报》2007年第18期1929-1932,共4页Acta Chimica Sinica

基　　金：上海教委重点基金(No.06ZZ95);国家自然科学青年基金(No.50503011);上海市"浦江人才计划"(No.05PG14051);上海重点学科(No.P1701)资助项目.

摘　　要：以二乙胺为结构导向剂,在微波条件下合成了SAPO-34分子筛材料,并分别在空气和氮气氛下1073K焙烧.考察了氮气氛下分子筛表面碳改性后对材料表面及水、甲醇和乙醇吸附性能的影响.结果表明:碳改性后SAPO-34比表面、孔容下降,但孔径趋于均一.与SAPO-34样品相比,碳改性后SAPO-34吸水量从0.295g/g降低到0.180g/g,甲醇/乙醇的吸附比从1.42提高到2.81.In this paper, SAPO-34 was microwave-assisted synthesized with diethylamine as the structure-director, and the synthesized samples were calcined under air and nitrogen at 1073 K respectively. The surface effect of carbon modified SAPO-34 under a nitrogen atmosphere and its adsorption ability to water/methanol/ethanol were studied. The results showed that the BET surface area and pore volume decrease, while pore diameter tends to be uniform on carbon-modified SAPO-34. Water-adsorption weight decreased from 0.295 g/g to 0,180 g/g, and the adsorption ratio of methanol/ethanol increased from 1.42 to 2.81 on the samples of carbon-modified SAPO-34 comparing with SAPO-34.

关 键 词：二乙胺 碳改性 SAPO-34 选择吸附 甲醇/乙醇 

分 类 号：O643.36[理学—物理化学]