Sol–gel synthesis of Au/N–TiO2 composite for photocatalytic reduction of Cr(vi)
- 1 January 2012
- journal article
- Published by Royal Society of Chemistry (RSC) in RSC Advances
- Vol. 2 (9) , 3823-3827
Abstract
Au/N–TiO2 composites are successfully synthesized via a modified sol–gel method and their photocatalytic performance in reduction of Cr(VI) is investigated. Au/N–TiO2 composites exhibit an enhanced photocatalytic performance in the reduction of Cr(VI) with a maximum reduction rate of 90% under visible light irradiation as compared with pure TiO2 (34%) and N–TiO2 (80%) due to the increase of light absorption intensity and range as well as the reduction of electron–hole pair recombination in TiO2 with the incorporation of N and Au.Keywords
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