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1998 Fiscal Year Final Research Report Summary

PREPARATION OF MICROCHANNEL MATERIALS FOR SEPARATION OF ORGANIC COMPOUNDS

Research Project

Project/Area Number 09650847
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 反応・分離工学
Research InstitutionKYUSHU UNIVERSITY

Principal Investigator

KUSAKABE Katsuki  Kyushu University, Graduate School of Engineering, Department of Materials Physics and Chemistry, Associate Professor, 大学院・工学研究科, 助教授 (30153274)

Co-Investigator(Kenkyū-buntansha) ISODA Takaaki  Kyushu University, Graduate School of Engineering, Department of Materials Physi, 大学院・工学研究科, 助手 (70284544)
Project Period (FY) 1997 – 1998
Keywordsinorganic membrane / silica membrane / sol-gel / micropore / pore size control / template / porous / alkoxide
Research Abstract

Porous silica membranes were formed by a sal-gel technique on a gamma-alumina-coated alpha-alumina tube using sols which were prepared from tetraethoxysilane (TEOS) and octyl-, dodecyl, or octadecyltriethoxysilane. The alkyltriethoxysilanes were used as the template to control the pore size. The effect of the length of alkyl groups on pore structure as well as the permeation properties of the silica membranes were then investigated. The molar ratio of water to total alkoxides in the sols, x, strongly influenced the pore structure. A silica membrane which was prepared with octadecyltriethoxysilane contained mesopores and cracks, but the silica membranes prepared octyl- and dodecyltriethoxysilane were defect-free. Permeations to gasses with a variety of molecular sizes showed that the majority of micropores were in the 0.3-0.4 nm range for the silica membranes which had been calcinated at 600゚C.These micropores were basically formed by the decomposition of alkyl chains in the template, while the mesopore structure was achieved during the gelation step.

  • Research Products

    (6 results)

All Other

All Publications (6 results)

  • [Publications] B. K. Sea et al.,: "Pore Size Control and Gas Perueation Kinetics of Silica menbrones by Pyrolysis of Phenyl-Substituted Ethoxysilane with Cross-Flow through a Porous Support Wall" Journal of Membrane Science. 130.1. 41-52 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] K. Kusakabe et al.,: "Separation of Benzene/Cyclohexane Mixture Using Polyurethane-Silica Hybrid Membranes" Journal of Membrane Science. 149.1. 29-37 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] K.Kusakabe et al.,: "Porestructure of Silica Membranes Formed by a Sol-Gel Technique Using Tetraethoxysilane and Alkyltriethoxysilane" Separation and Purification Technology. 印刷中.

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] K.Kusakabe, S.Yoneshige and S.Morooka: "Separation of Benzene/Cyclohexane Mixture Using Polyurethane-Silica Hybrid Membranes" Journal of Membrane Science. 149 (1). 29-37 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] K.Kusakabe, S.Sakamoto, T.Saie and S.Morooka: "Porestructure of Silica Membranes Formed by a Sol-gel Technique Using Tetraethoxysilane and Alkyltriethoxysilane" Separation and purification Technology. (in press).

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] B.-K.Sea, K.Kusakabe and S.Morooka: "Pore Size Control and Gas Permeation Kinetics of Silica membranes by Pyrolysis of Phenyl-Substituted Ethoxysilane with Cross-flow through a porous Support Wall" Journal of Membrane Science. 130 (1). 41-52 (1997)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1999-12-08  

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