Comparative study on the influence of toluene and methylcyclohexane on the performance of dimethoxydiphenylsilane-derived silica membranes prepared by chemical vapor deposition

Masahiro Seshimo, Kazuki Akamatsu*, Satoshi Furuta, Shin Ichi Nakao

*この研究の対応する著者

    研究成果査読

    7 被引用数 (Scopus)

    抄録

    The influence of toluene (TOL) and methylcyclohexane (MCH) on the performance of dimethoxydiphenylsilane-derived silica membranes prepared by chemical vapor deposition was investigated. The presence of TOL decreased the H2 and N2 permeances. These decreases were more pronounced at higher TOL concentration and lower temperature. This was attributed to the adsorption of TOL, and permeance was largely recovered by regeneration in H2. The recovery of N2 permeance was less satisfactory than that of H2 permeance. The presence of MCH had a much smaller effect on membrane performance, though N2 permeance was mildly affected. The difference in the effects of TOL and MCH on membrane performance reflected the differing physical interactions of these molecules with the membrane. The interaction between TOL and silica was stronger and adsorption therefore more favorable, than that between MCH and silica. Thus, TOL was more difficult to remove from the membrane surface and pores.

    本文言語English
    ページ(範囲)1-5
    ページ数5
    ジャーナルSeparation and Purification Technology
    140
    DOI
    出版ステータスPublished - 2015 1 22

    ASJC Scopus subject areas

    • 分析化学
    • ろ過および分離

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