Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5370288 | Applied Surface Science | 2006 | 6 Pages |
Abstract
Nano-silicon (nc-Si) was utilized as the charges generator to promote the photocatalytic and super-hydrophilic reactivity of TiO2 film under visible light irradiation. The photocatalytic ability of TiO2/nc-Si composite photocatalyst was evaluated by a set of experiments to photodecompose 100 ppm methylene blue (MB) in aqueous solution. And the super-hydrophilic property was characterized by measuring the water droplet contacts angle, under visible light irradiation in atmospheric air and at room temperature. Under 100 mW/cm2 visible light irradiation, the droplet contact angles were reduced to 0° within 4 h with nc-Si charge generator. Additionally, the rate constant of MB photo-degradation was promoted 6.6 times.
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Authors
Chun Yu Lin, Yean Kuen Fang, Che Hao Kuo, Shih Fang Chen, Chun-Sheng Lin, Tse Heng Chou, Yu-Hua Lee, Jui-Che Lin, Sheng-Beng Hwang,