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20 December 2006 Photocatalytic reduction and oxidation over some nanosized TiO2 catalysts prepared by different methods
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Abstract
Nano-sized TiO2 samples were successfully synthesized by both methods: sol-gel and hydrothermal treatment. The samples were characterized by XRD and FESEM, TEM. The XRD results revealed TiO2 samples consisted of pure anatase phase and/or mixture of anatase-rutile phases depending on the synthesis condition. By SEM-TEM, the particle size of all TiO2 samples was ca. 20-50nm. Nanosized TiO2 samples were tested in the photocatalytic oxidation of redphenol and in the photocatalytic reduction of Cr(VI) to Cr(III). All samples were active in both reactions, however, a difference in photocatalytic activities between samples was observed. For comparison, P25 Degussa was also investigated. Photocatalytic performances of the samples were discussed.
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Yen Hoang, Linh H. Bui, Thang C. Dinh, Hoa K. Tran, Cuong M. Nguyen, Phuong T. Dang, and Tuan A. Vu "Photocatalytic reduction and oxidation over some nanosized TiO2 catalysts prepared by different methods", Proc. SPIE 6415, Micro- and Nanotechnology: Materials, Processes, Packaging, and Systems III, 64151B (20 December 2006); https://doi.org/10.1117/12.695756
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