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- W1990100711 abstract "TiO2 samples with different characteristics and adsorption ability were prepared via hydrolysis of titanium tetraisopoxide and calcination at four different temperatures. The photoremoval of Acid Red 3B catalyzed by these catalysts was carried out. The results show high firing temperature lead to large TiO2 particle and a low adsorption ability of TiO2. The dye photoremoval reaction fits zero order kinetics well in catalyst-free solution and changes to first order kinetics in the presence of TiO2. The solution pH value has a large effect on the removal efficiency. High dye removal efficiency can be obtained at high pH value. Catalyst addition improves the dye photoremoval efficiency and leads to the change of removal kinetics. Anatase TiO2 fired at 400 °C shows the best catalytic activity and the catalytic activity of TiO2 fired at 800 °C, which is rutile, is the worst of all catalysts. The catalytic ability of TiO2 is influenced mainly by two factors of catalysts: crystalline form and adsorption ability for Acid Red 3B. The crystalline form is a more important factor influencing the catalytic activity than the adsorption ability of TiO2 and the catalytic activity can be enhanced by the high dye adsorption ability of TiO2." @default.
- W1990100711 created "2016-06-24" @default.
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- W1990100711 date "1997-08-01" @default.
- W1990100711 modified "2023-10-18" @default.
- W1990100711 title "A study on dye photoremoval in TiO2 suspension solution" @default.
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- W1990100711 doi "https://doi.org/10.1016/s1010-6030(97)00014-2" @default.
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