A Study on the Photocatalytic Oxidation of Trichloroethylene in Air

이산화티타늄($TiO_2$) 광촉매 산화 반응에 이용한 트리클로로에틸렌(TCE) 처리에 관한 연구

  • Published : 2000.05.01

Abstract

Photocatalyzed degradation of trace level trichloroethylene(TCE) and toluene in air was carried out over near UV illuminated titanium doxide(anatase) pellet in a flow reactor. The authors investigaed the effects of humidity and trace contaminant levels on the oxidation rates of toluene. Inlet concentrations of TCE and toluene were 10∼100ppm. TCE photooxidation was very rapid under what conditions, and almost 100% conversion was achieved for TCE(up to 70 ppm) as a single air contaminant. An important finding was that competitive adsorption between humidity and trace contaminants has a significant effect on the oxidation rate of what.

Keywords

References

  1. Bull. Environ Contam Toxicol v.49 Photochemical behavior of organic phosphateesters in aqueous solutions irradiated with amercury lamp Ishikaxa, S.;Y. Uchimuta
  2. JOURNAL OF CATALYSIS v.136 Heterogeneous Photocatalytic Oxidation of Gas-Phase Organics for Air Purification: Acetone, 1-Butanol, Butyraldehyde, Formaldehyde, and m-Xylene Oxidation Jose Peral;David F. Ollis
  3. Ph. D. Dissertation, University of Colorado Jacoby, W. A.
  4. Bull. Chem. Soc. Jpn v.58 Kinetics of heterogeneous photocatalystic decomposition of phenol over TiO2 powder Okamoto, K.;Y.Yamamoto et al.
  5. Toxic Air Quality Paul, J. Lioy;Joan M. Dasey
  6. J. of Catalysis v.122 Photocatalytic degradation of organic water contaminants : Mechanisms involving hydroxy radical attack Turch, C.S.;D.F. Ollis
  7. 大氣環境學會誌 v.35 no.2 環境淨化技術開發への 期得と展望 指宿 堯嗣
  8. KBOOK SERIES 132 光觸媒の世界 竹內 浩士;村澤 貞夫;指宿 堯嗣
  9. 豊田中央硏究所 R&D レビュ- v.28 no.3 光觸媒式空氣淸淨器 Ken-ichirou Suzuki