ZIF-8 Filled Polydimethylsiloxane Membranes for Pervaporative Separation n-Butanol from Aqueous Solution |
Authors: ZHANG Chunfang, DONG Liangliang, BAI Yunxiang, GU Jin, SUN Yuping |
Units: The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Materials Engineering, Jiangnan University, Wuxi 214122 |
KeyWords: Polydimethylsiloxane membrane; ZIF-8; Pervaporation; n-Butanol; Biofuels |
ClassificationCode:TQ027.3 |
year,volume(issue):pagination: 2013,33(4):88-93 |
Abstract: |
ZIF-8 filled polydimethylsiloxane (PDMS) membranes, PDMS/ZIF-8, were prepared by a two-step polymerization process, which were used as membrane material to recover n-butanol from aqueous solution by pervaporation (PV). The membranes demonstrated high n-butanol permselectivity and with the increase of ZIF-8 loading, the separation factor increased initially and then decreased, while the total flux decreased. The PDMS/ZIF-8 membranes containing 2 wt% ZIF-8, PDMS/ZIF-8-2, showed the highest separation factor. On the other hand, the separation factor and total flux of PDMS/ZIF-8-2 membrane increased with the increase of temperature. The separation factor and total ?ux reached 49.24 and 8.43 kg?m/(m2h), respectively, at 60 oC when the feed concentration of n-butanol is 0.96 wt%. |
Funds: |
国家自然科学青年基金项目(21106053)和中央高校基本科研业务费专项资金(JUSRP311A01)资助; |
AuthorIntro: |
张春芳(1977-),女,内蒙古人,博士,副教授,主要研究方向,膜分离.*通讯联系人,E-mail:baisir223@163.com |
Reference: |
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