Characterization of flame-generated TiO2 deposited Activated Carbon Fibers (ACF)

Jae Hong Park, Jun Ho Ji, Jeong Hoon Byeon, Gyo Woo Lee, Jungho Hwang

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

Abstract

Even though activated carbon fibers (ACF) have been attractive due to high specific surface area and uniform micropore structure, there are only a few reports about the photocatalyst immobilization on ACF or their photodegradation behavior for removal of organic pollutants. In this study, ACF were selected as adsorptive support for photocatalyst immobilization. As photocatalysts, TiO 2 nanoparticles were synthesized by using a N2-diluted and oxygen-enriched co-flow hydrogen diffusion flame. The visible flame length of 150mm was obtained by direct photographs. Flame temperature was measured by rapid insertion measurement technique with a R-type (Pt/Pt-13%Rd) thermocouple which was in wire shape (127μm diameter). TiO2 particles were sampled by using a high temperature particle sampler and then were coated on ACF filters. The sampling was carried out at 70mm and 110mm above the burner. The structure of TiO2 particles was analyzed by XRD. TiO2 coated ACF filters were characterized by FESEM-EDX and BET analyses. TiO 2 particles on ACF filters were found to be agglomerated particles and the size of primary particles was approximately 50nm. The structure of TiO2 particle was anatase-phase crystalline structure. The specific surface area of TiO2 coated ACF filter was enhanced to be 1700-1860m2/g, depending on the sampling location, and the pores were micropores, regardless of the sampling location.

Original languageEnglish
Title of host publicationEco-Materials Processing and Design VIII - ISEPD-8, Proceedings of the 8th International Symposium on Eco-Materials Processing and Design
PublisherTrans Tech Publications Ltd
Pages31-34
Number of pages4
ISBN (Print)0878494316, 9780878494316
DOIs
Publication statusPublished - 2007
Event8th International Symposium on Eco-Materials Processing and Design, ISEPD-8 - Kitakyushu, Japan
Duration: 2007 Jan 112007 Jan 13

Publication series

NameMaterials Science Forum
Volume544-545
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Other

Other8th International Symposium on Eco-Materials Processing and Design, ISEPD-8
CountryJapan
CityKitakyushu
Period07/1/1107/1/13

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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  • Cite this

    Park, J. H., Ji, J. H., Byeon, J. H., Lee, G. W., & Hwang, J. (2007). Characterization of flame-generated TiO2 deposited Activated Carbon Fibers (ACF). In Eco-Materials Processing and Design VIII - ISEPD-8, Proceedings of the 8th International Symposium on Eco-Materials Processing and Design (pp. 31-34). (Materials Science Forum; Vol. 544-545). Trans Tech Publications Ltd. https://doi.org/10.4028/0-87849-431-6.31