Novel, alkali-bonded, ceramic filtration membranes

S. Mallicoat, P. Sarin, Waltraud M Kriven

Research output: Contribution to journalConference articlepeer-review

Abstract

Ceramic filters allow operations at extreme pressures and pHs, high temperatures, and have longer operating lifetimes. However, costly ceramic filtration systems are often rejected in favor of polymeric filters. The primary cause for the high cost of ceramic filters is the expensive processing which includes powder synthesis and sintering cycles. The goal of our research is to develop a new type of ceramic filter using alkali bonded ceramics (ABCs). In this study, we present an update on our effort to create a ceramic membrane with interconnected porosity of controlled pore size using alkali bonded ceramics. Synthesis of ABC membranes can be separated into four main steps (a) synthesis of nanosize polymeric colloidal particles, (b) preparation of self-assembled templates using polystyrene (PS) nanospheres, (c) intrusion of the template with ABC slurry, which hardens at room temperature, and finally (d) dissolution of the template in a solvent. PS nanospheres of diameters 100 and 300 nanometers were synthesized and self-assembled to form templates of different shapes and sizes. Results on intrusion of ABC slurry into the template formed on a microporous nylon filter paper will be presented.

Original languageEnglish (US)
Pages (from-to)37-44
Number of pages8
JournalCeramic Engineering and Science Proceedings
Volume26
Issue number8
StatePublished - Dec 1 2005
Event29th International Conference on Advanced Ceramics and Composites - Cocoa Beach, FL, United States
Duration: Jan 23 2005Jan 28 2005

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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