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Photocatalytic Degradation of Benzene in the Gas Phase using TiO2 Coated on Ceramic and Glass Beads  

손현석 (서울대학교 보건대학원 환경보건학과)
양원호 (대구가톨릭대학교 자연과학부 산업보건학과)
김현용 (서울대학교 보건대학원 환경보건학과)
이소진 (서울대학교 보건대학원 환경보건학과)
박종래 (보람이엔티㈜)
조경덕 (서울대학교 보건대학원 환경보건학과)
Publication Information
Journal of Korean Society for Atmospheric Environment / v.19, no.1, 2003 , pp. 57-66 More about this Journal
Abstract
TiO$_2$ sol was prepared by sol-gel method, and this sol was coated in ceramic and glass bead by dip-coating method. The coated catalyst was applied to degrade benzene in the gas phase by exposing to UV -lamp (365 nm) in a batch reactor. The removal efficiency of the benzene was compared by changing various conditions such as the kind of chemical additives, the coating beads (ceramic and glass), solution pH, the initial concentration of TiO$_2$ sol, UV intensity, and benzene concentration. The physical structure of TiO$_2$ sol used in this study was found to be pu-rely anatase type from XRD analysis. The results showed that ceramic bead was effective as the coating agent rath-er than glass bead. The significant change in the benzene removal efficiency of benzene did not occur with chang-ing coating frequency and the initial concentration of TiO$_2$ sol. The removal efficiency of benzene increased with increasing UV intensity, and with acidic treatment of TiO$_2$-coated ceramic bead.
Keywords
UV/$TiO_2$Sol; Glass bead; Cermic bead; Coating; Benzene; Photodegradation;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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