红茶萃取液辅助合成多级结构SAPO-34分子筛及对CO_(2)吸附性能的研究  

Black tea extract-assisted synthesis of hierarchical SAPO-34 molecular sieves and their CO_(2)adsorption property

作　　者：贡洁 童霏[2] 朱炳龙[2] 卢林勇 Gong Jie;Tong Fei;Zhu Binglong;Lu Linyong(College of Chemistry and Chemical Engineering,Jiangsu University of Technology,Changzhou 213001;College of Resources and Environmental Engineering,Jiangsu University of Technology,Changzhou 213001)

机构地区：[1]江苏理工学院化学化工学院,常州213001 [2]江苏理工学院资源与环境工程学院,常州213001

出　　处：《化工新型材料》2024年第S02期212-215,共4页New Chemical Materials

基　　金：常州市科技计划项目(CJ20235065)。

摘　　要：以红茶悬浮液高温处理得到的滤液(即红茶萃取液)代替去离子水配制SAPO-34合成液,通过传统水热合成方法制备多级结构SAPO-34。多级结构SAPO-34呈球状或半球状,粒径为3~5μm,由厚度约为20nm的纳米片组成。结果表明:红茶萃取液中含有某种有效组分促使纳米片的生成,但是过高的红茶萃取液浓度会降低SAPO-34的结晶度;在25℃和100kPa下,多级结构SAPO-34的CO_(2)和CH 4吸附容量分别为2.15mmol/g和0.40mmol/g,理想分离因子为5.4。Black tea extract,obtained by hydrothermal treatment of the black tea suspension,was used instead of deionized water to prepare the synthesis solution,and the hierarchical SAPO-34 was obtained by the conventional hydrothermal synthesis method.The SAPO-34 was of spherical morphology or hemispherical with particle sizes of 3~5μm,and exhibited hierarchical microarchitecture constructed by nanosheets with a thickness of about 20 nm.The results showed that black tea extract contained some effective components to promote the formation of nanosheets.However,an excessive concentration of the black tea extract could reduce the crystallinity of SAPO-34.The hierarchical SAPO-34 exhibited a good CO_(2)and CH 4 adsorption capacities of 2.15 and 0.40mmol/g under 25℃and 100kPa,respectively,with an ideal separation factor of 5.4.

关 键 词：红茶萃取液 多级结构 SAPO-34 吸附 

分 类 号：TQ424.2[化学工程]