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The study of praparation and gas separation property of ethyl cellulose/C60composite membranes

Authors： Ma Cheng*, Kong Ying**, Yang Jinrong

Units： State Key Laboratory of Heavy Oil Processing,

KeyWords： C60, EC/C60 composite membrane, UV irradiation, gas separation property

ClassificationCode：O63

year,volume(issue):pagination： 2012,32(3):52-58

Abstract：

Ethyl cellulose/C60 composite membranes were prepared in benzene, the membrane structure were studied by UV-visible spectrum, Atomic force microscopy (AFM) and X-ray diffraction (XRD) and gas permeation tests were also implemented before and after UV irradiation. Results showed C60 morphology in the composite membranes by the independent cluster structure before UV irradiation and continuous gentle hill-like structure after UV irradiation, the d-spacing of the composite membrane did not change before and after UV irradiation. The change of C60 clusters morphology could influence the gas separation property of the composite membranes, when the C60 loading content raised to 16‰ before irradiation, the permeability coefficient of CO2 and H2 of composite membrane were 61.29 Barrer and 78.88 Barrer, 1.3 and 1.4 times of pure EC membrane, while ideal separation factor of H2/N2 , CO2/N2 were 9.979 and 12.84, 1.47 and 1.38 times of pure EC membrane; when irradiated by UV light source, EC/C60 composite membrane could maintain permeability of CO2 and H2 on the level of pure EC membrane, and the ideal separation factor of H2/N2 and CO2/N2 were 17.49 and 25.60, 2.30 and 2.43 times pure EC membranes at high C60 loading content.

Funds：

教育部创新团队“重质油高效转化的绿色化学与工程”（编号：IRT0759）, 教育部高等学校博士学科点专项科研基金（20090133120008）, 山东省自然科学基金（ZR2009BQ011）

AuthorIntro：

马诚（1982-），男，辽宁辽阳人，博士研究生，主要从事气体分离膜材料的研究，E-mail: kkmc1982@yahoo.cn **通讯联系人：孔瑛，主要研究方向：高分子材料、膜分离，

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