Photocatalytic decomposition of CCl4 on Zr-MCM-41

Y. C. Chien; H. Paul Wang; S. H. Liu; T. L. Hsiung; H. S. Tai; C. Y. Peng

doi:10.1016/j.jhazmat.2007.06.027

Photocatalytic decomposition of CCl₄ on Zr-MCM-41

Y. C. Chien, H. Paul Wang, S. H. Liu, T. L. Hsiung, H. S. Tai, C. Y. Peng

Department of Environmental Engineering

Research output: Contribution to journal › Article › peer-review

18 Citations (Scopus)

Abstract

Photocatalytic decomposition of CCl₄ (80 mg L^-1 in H₂O) 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 CCl₄ on Zr-MCM-41 was enhanced by about 1.96 times over that on ZrO₂. Photocatalytic decomposition of CCl₄ may proceed via a two-electron transfer process that yields mainly CHCl₃, Cl^- and H₂. Since little C₂Cl₂, C₂Cl₆ or CH₂Cl₂ was found, it is unlikely that CHCl₃ involved in the secondary photocatalytic degradation process. In addition, photocatalytic splitting of H₂O on Zr-MCM-41 was also enhanced. The yield of H₂ was 6.5 mmol (g ZrO₂)^-1. About 68% of this hydrogen (6.5 mmol (g ZrO₂)^-1) was consumed in the photocatalytic decomposition of CCl₄.

Original language	English
Pages (from-to)	461-464
Number of pages	4
Journal	Journal of Hazardous Materials
Volume	151
Issue number	2-3
DOIs	https://doi.org/10.1016/j.jhazmat.2007.06.027
Publication status	Published - 2008 Mar 1

All Science Journal Classification (ASJC) codes

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

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@article{6b914d4b50e945dd905727ed05c0eccd,

title = "Photocatalytic decomposition of CCl4 on Zr-MCM-41",

abstract = "Photocatalytic decomposition of CCl4 (80 mg L-1 in H2O) 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 CCl4 on Zr-MCM-41 was enhanced by about 1.96 times over that on ZrO2. Photocatalytic decomposition of CCl4 may proceed via a two-electron transfer process that yields mainly CHCl3, Cl- and H2. Since little C2Cl2, C2Cl6 or CH2Cl2 was found, it is unlikely that CHCl3 involved in the secondary photocatalytic degradation process. In addition, photocatalytic splitting of H2O on Zr-MCM-41 was also enhanced. The yield of H2 was 6.5 mmol (g ZrO2)-1. About 68% of this hydrogen (6.5 mmol (g ZrO2)-1) was consumed in the photocatalytic decomposition of CCl4.",

author = "Chien, {Y. C.} and Wang, {H. Paul} and Liu, {S. H.} and Hsiung, {T. L.} and Tai, {H. S.} and Peng, {C. Y.}",

note = "Funding Information: The financial supports of the Taiwan National Science Council and Bureau of Energy are gratefully acknowledged.",

year = "2008",

month = mar,

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doi = "10.1016/j.jhazmat.2007.06.027",

language = "English",

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T1 - Photocatalytic decomposition of CCl4 on Zr-MCM-41

AU - Chien, Y. C.

AU - Wang, H. Paul

AU - Liu, S. H.

AU - Hsiung, T. L.

AU - Tai, H. S.

AU - Peng, C. Y.

N1 - Funding Information: The financial supports of the Taiwan National Science Council and Bureau of Energy are gratefully acknowledged.

PY - 2008/3/1

Y1 - 2008/3/1

N2 - Photocatalytic decomposition of CCl4 (80 mg L-1 in H2O) 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 CCl4 on Zr-MCM-41 was enhanced by about 1.96 times over that on ZrO2. Photocatalytic decomposition of CCl4 may proceed via a two-electron transfer process that yields mainly CHCl3, Cl- and H2. Since little C2Cl2, C2Cl6 or CH2Cl2 was found, it is unlikely that CHCl3 involved in the secondary photocatalytic degradation process. In addition, photocatalytic splitting of H2O on Zr-MCM-41 was also enhanced. The yield of H2 was 6.5 mmol (g ZrO2)-1. About 68% of this hydrogen (6.5 mmol (g ZrO2)-1) was consumed in the photocatalytic decomposition of CCl4.

AB - Photocatalytic decomposition of CCl4 (80 mg L-1 in H2O) 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 CCl4 on Zr-MCM-41 was enhanced by about 1.96 times over that on ZrO2. Photocatalytic decomposition of CCl4 may proceed via a two-electron transfer process that yields mainly CHCl3, Cl- and H2. Since little C2Cl2, C2Cl6 or CH2Cl2 was found, it is unlikely that CHCl3 involved in the secondary photocatalytic degradation process. In addition, photocatalytic splitting of H2O on Zr-MCM-41 was also enhanced. The yield of H2 was 6.5 mmol (g ZrO2)-1. About 68% of this hydrogen (6.5 mmol (g ZrO2)-1) was consumed in the photocatalytic decomposition of CCl4.

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