Photocatalytic decomposition of CCl 4 on Zr-MCM-41

Y. C. Chien, Hong-Paul Wang, Shou-Heng Liu, T. L. Hsiung, H. S. Tai, C. Y. Peng

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Photocatalytic decomposition of CCl 4 (80 mg L -1 in H 2 O) effected by Zr-MCM-41 (Zr incorporated in the amorphous wall of MCM-41) has been studied in the present work. Experimentally, photocatalytic decomposition of CCl 4 on Zr-MCM-41 was enhanced by about 1.96 times over that on ZrO 2 . Photocatalytic decomposition of CCl 4 may proceed via a two-electron transfer process that yields mainly CHCl 3 , Cl - and H 2 . Since little C 2 Cl 2 , C 2 Cl 6 or CH 2 Cl 2 was found, it is unlikely that CHCl 3 involved in the secondary photocatalytic degradation process. In addition, photocatalytic splitting of H 2 O on Zr-MCM-41 was also enhanced. The yield of H 2 was 6.5 mmol (g ZrO 2 ) -1 . About 68% of this hydrogen (6.5 mmol (g ZrO 2 ) -1 ) was consumed in the photocatalytic decomposition of CCl 4 .

Original languageEnglish
Pages (from-to)461-464
Number of pages4
JournalJournal of Hazardous Materials
Volume151
Issue number2-3
DOIs
Publication statusPublished - 2008 Mar 1

Fingerprint

Multicarrier modulation
decomposition
Decomposition
Hydrogen
Electrons
hydrogen
Degradation
electron
degradation
MCM-41

All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Environmental Chemistry
  • Waste Management and Disposal
  • Pollution
  • Health, Toxicology and Mutagenesis

Cite this

Chien, Y. C. ; Wang, Hong-Paul ; Liu, Shou-Heng ; Hsiung, T. L. ; Tai, H. S. ; Peng, C. Y. / Photocatalytic decomposition of CCl 4 on Zr-MCM-41 In: Journal of Hazardous Materials. 2008 ; Vol. 151, No. 2-3. pp. 461-464.
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Photocatalytic decomposition of CCl 4 on Zr-MCM-41 . / Chien, Y. C.; Wang, Hong-Paul; Liu, Shou-Heng; Hsiung, T. L.; Tai, H. S.; Peng, C. Y.

In: Journal of Hazardous Materials, Vol. 151, No. 2-3, 01.03.2008, p. 461-464.

Research output: Contribution to journalArticle

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AU - Wang, Hong-Paul

AU - Liu, Shou-Heng

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N2 - Photocatalytic decomposition of CCl 4 (80 mg L -1 in H 2 O) effected by Zr-MCM-41 (Zr incorporated in the amorphous wall of MCM-41) has been studied in the present work. Experimentally, photocatalytic decomposition of CCl 4 on Zr-MCM-41 was enhanced by about 1.96 times over that on ZrO 2 . Photocatalytic decomposition of CCl 4 may proceed via a two-electron transfer process that yields mainly CHCl 3 , Cl - and H 2 . Since little C 2 Cl 2 , C 2 Cl 6 or CH 2 Cl 2 was found, it is unlikely that CHCl 3 involved in the secondary photocatalytic degradation process. In addition, photocatalytic splitting of H 2 O on Zr-MCM-41 was also enhanced. The yield of H 2 was 6.5 mmol (g ZrO 2 ) -1 . About 68% of this hydrogen (6.5 mmol (g ZrO 2 ) -1 ) was consumed in the photocatalytic decomposition of CCl 4 .

AB - Photocatalytic decomposition of CCl 4 (80 mg L -1 in H 2 O) effected by Zr-MCM-41 (Zr incorporated in the amorphous wall of MCM-41) has been studied in the present work. Experimentally, photocatalytic decomposition of CCl 4 on Zr-MCM-41 was enhanced by about 1.96 times over that on ZrO 2 . Photocatalytic decomposition of CCl 4 may proceed via a two-electron transfer process that yields mainly CHCl 3 , Cl - and H 2 . Since little C 2 Cl 2 , C 2 Cl 6 or CH 2 Cl 2 was found, it is unlikely that CHCl 3 involved in the secondary photocatalytic degradation process. In addition, photocatalytic splitting of H 2 O on Zr-MCM-41 was also enhanced. The yield of H 2 was 6.5 mmol (g ZrO 2 ) -1 . About 68% of this hydrogen (6.5 mmol (g ZrO 2 ) -1 ) was consumed in the photocatalytic decomposition of CCl 4 .

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