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化学学报
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化学学报 ›› 2007, Vol. 65 ›› Issue (18): 1929-1932.    下一篇

研究论文

SAPO-34处理方法对吸附性能的影响

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   

  1. (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)
  • 投稿日期:2007-01-28 修回日期:1997-05-16 发布日期:2007-09-28
  • 通讯作者: 王利军

Effects of SAPO-34 Dealing Method on Adsorption Property

WANG Li-Jun*,1; ZHAO Hai-Tao2; HAO Zhi-Xian2; YUAN Hao1; XIE Li-Li1; TIAN Zhen1; CHEN Sheng-Wen1; WANG Ji-Fen1; LI Qing-Hua1   

  1. (1 Department of Environmental Engineering, Laboratory of Environmental Functional Materials, Shanghai Second Polytechnic University, Shanghai 201209)
    (2 Department of Chemistry, Tongji University, Shanghai 200092)
  • Received:2007-01-28 Revised:1997-05-16 Published:2007-09-28
  • Contact: WANG Li-Jun

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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1073 K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0.295 g/g降低到0.180 g/g, 甲醇/乙醇的吸附比从1.42提高到2.81.

关键词: 二乙胺, 碳改性, SAPO-34, 选择吸附, 甲醇/乙醇

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.

Key words: diethylamine, carbon-modified, SAPO-34, selective adsorption, methanol/ethanol