세라믹과 유리에 코팅한 TiO2 광촉매를 이용한 가스상 벤젠의 제거

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)
  • 발행 : 2003.02.01

초록

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.

키워드

참고문헌

  1. 한국대기환경학회 v.17 no.4 VOC물질중 에탄올 광분해 반응을 위한 TiO₂촉매의 제조 변수 고찰 이병용;김성욱;정석진
  2. Separation and Puri-fication Technology Development and characterization of cera-mic nanofiltration menbranes Benfer, S.;U. Popp; H. Richter;Siewert, C.;G. Tomandl
  3. Journal of Photochemistry and Photobiology A : Chemistry v.70 no.3 Photocatalytic reaction of neat alchols by metal-loaded titanium(Ⅳ) oxide particles Ohtani, B.;M. Kakimoto;S. Nishimoto;T. Kagiya https://doi.org/10.1016/1010-6030(93)85052-A
  4. Proceed-ings of Industrial and Engineering Division Sym-posium Emerging Technology of Hazardous Waste Management Advanced ultraviolet flashlamps for the de-struction of organic contaminants in air Blystone, P. G.;M. D. Johnson;W. R. Hagg;P. F. Daley
  5. Compendium of methods for the determination of toxic organic compounds in ambient air, 2nd edi-tion EPAEPA
  6. Applied Catalysis B, Environment. v.6 The gas-phase photocatalytic mineralization of benzene on porous tiania-based catalysts Fu, X.;W. A. Zeltner;M. A. Anderson https://doi.org/10.1016/0926-3373(95)00017-8
  7. Solar Energy Materials & Solar Cells v.63 Development and investigation of sol-gel solutions for the formation of TiO₂coatings Harizanov, O.;A. Harizanova https://doi.org/10.1016/S0927-0248(00)00008-8
  8. Analy-tica. Chemica. Acta. v.311 Application of TiO₂sol for UV radiation measurements Huang, J.;H. Ding;W. Dodson;Y. Li https://doi.org/10.1016/0003-2670(95)00174-X
  9. Journal of Catalysis v.157 Vanadia catalysts supported on mixed TiO₂-Al₂O₃supports : Effect of composition on the structure ad acidity Matalis, H. K.;M. Ciardelli;M. Ruwet;P. Grange https://doi.org/10.1006/jcat.1995.1302
  10. Thin Solid Films v.392 Preparation of photocata-lytic TiO₂transparent thin film by thermal decom-position of Ti-alkoxide with α-ternieol as a sol-vent Negishi, N.;K. Takeuchi https://doi.org/10.1016/S0040-6090(01)01036-7
  11. Thin Solid Films. v.335 Effect of ligands on crys-tal structures and optica properties of TiO₂ prepar-ed by sol-gel processes Nishide, T.;F. Mizukami
  12. J. Phys. Chem. v.97 Effect of suface adsorp-tion of aliphatic alcohols and silver ion on the pho-toctalytic activity of TiO₂supended in aqueous solutions Ohtani, B.;S. Nishimoto https://doi.org/10.1021/j100106a018
  13. Environ. Sci. Technol v.25 Destruction of water contamination Oills, D. F.;F. Pelizzeti;N. Serpone
  14. and titanium dioxde assisted Photo-lysis. Haz. Waste & Hax. Mater v.10 Chemical oxidation technologies : UV light/hydrogen peroxide, Fen-ton's reagent Venkatadri, R.;R. W. Peters
  15. Separation and Purification Technology v.19 Application of ultraviolet photooxidation to remove organic pollutants in the gas phase Wang, J. H.;M. D. Bay https://doi.org/10.1016/S1383-5866(99)00078-7
  16. Journal of The Air & Management Associa-tion v.47 Monitoring VOCs in air using sorbent tubes followed by thermal desorption-capillary GC analysis : summary of data practical guidelines Woolfenden, E.
  17. Journal of Catalysis v.158 Photocatalytic degrada-tion of 1 -octanol on anchored titanium oxide and on TiO₂power catalysts Yamashita, H.;Y. Ichihashi;M. Haraada;G. Stewart;M. A. Fox;M. Anpo https://doi.org/10.1006/jcat.1996.0010