Effect of peptizing agent concentration on morphology of unsupported alumina membrane

N. Thongdee, S. Watcharamaisakul, B. Golman

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Ceramic membranes have received significant attention from both academia and industry, as they show the great potential in several important applications such as H2 separation, recovery of CO2 from natural gas and reduction of green-house gas emission from flue gas. The aim of the present study was to evaluate the effect of peptizing agent concentration on morphology of unsupported alumina membranes that are suitable for gas separation. The unsupported alumina membranes were prepared by the sol-gel method using aluminum-tri-sec-butoxide as a precursor and acetic acid as a peptizing agent. The particle size distributions of produced boehmite sols, as measured by dynamic light scattering technique, range from 10 to 600 nm. The increase in the concentration of acetic acid results in formation of particles of smaller median diameter. The pore volume and size distribution of unsupported alumina membranes were characterized by the Brunauer–Emmett–Teller (BET) method of adsorption of nitrogen gas. The pore size distributions of membranes were rather narrow in the range of 3 to 6 nm. The average diameter and volume of pores increase and the surface area decreases while the concentration of acetic acid increased.

Original languageEnglish
Title of host publicationTraditional and Advanced Ceramics III
EditorsSomnuk Sirisoonthorn, Sirithan Jiemsirilers, Thanakorn Wasanapiarnpong, Nutthita Chuankrerkkul, Rojana Pornprasertsuk, Nisanart Traiphol, Pornapa Sujaridworakun
PublisherTrans Tech Publications
Pages71-76
Number of pages6
ISBN (Print)9783035712605
DOIs
Publication statusPublished - Jan 1 2018
Event3rd International Conference on Traditional and Advanced Ceramics, ICTA 2017 - Bangkok, Thailand
Duration: Aug 31 2017Sep 1 2017

Publication series

NameKey Engineering Materials
Volume766 KEM
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795

Other

Other3rd International Conference on Traditional and Advanced Ceramics, ICTA 2017
CountryThailand
CityBangkok
Period8/31/179/1/17

Keywords

  • Ceramic membrane
  • Mesoporous
  • Peptizing agent
  • Sol-gel

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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