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

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22 引文 斯高帕斯(Scopus)


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.

頁(從 - 到)461-464
期刊Journal of Hazardous Materials
出版狀態Published - 2008 3月 1

All Science Journal Classification (ASJC) codes

  • 環境工程
  • 環境化學
  • 廢物管理和處置
  • 污染
  • 健康、毒理學和誘變


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