Visible-light photooxidation of trichloroethylene by Cr–Al-MCM-41
In the present study, the photooxidation of gaseous trichloroethylene (TCE) was performed on Cr–Al-MCM-41 (predominantly a SiO 2 framework) under visible light and UV light. This mesoporous Cr-containing MCM-41 material is a promising photocatalyst and exhibits excellent photoactivity. Moreover, the...
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Published in | Journal of catalysis Vol. 230; no. 1; pp. 158 - 165 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
Amsterdam
Elsevier Inc
15.02.2005
Elsevier |
Subjects | |
Online Access | Get full text |
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Summary: | In the present study, the photooxidation of gaseous trichloroethylene (TCE) was performed on Cr–Al-MCM-41 (predominantly a SiO
2 framework) under visible light and UV light. This mesoporous Cr-containing MCM-41 material is a promising photocatalyst and exhibits excellent photoactivity. Moreover, the products of photooxidation under visible light are similar to those under UV-light illumination. The photocatalysis process occurs on isolated Cr
6+ ions supported on a predominantly SiO
2 framework. A possible mechanism leading to the photooxidation of TCE together with the detection of intermediates by gas chromatography-mass spectrometry is reported here. |
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ISSN: | 0021-9517 1090-2694 |
DOI: | 10.1016/j.jcat.2004.11.044 |