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Photocatalytic oxidation technology is a new kind of environmental pollution control technology, with no secondary pollution, biodegradable almost all organic pollutants, etc., have confirmed the reality and potential applications in wastewater treatment, air purification value, subject to a wide range of domestic and international concern. Used catalyst, TiO , 2 strong photocatalytic ability under ultraviolet light, can degrade organic pollutants, photolysis of water, such as hydrogen, so it is highly desirable that this technology can early applied to the actual treatment of wastewater, however, in the actual industrial wastewater often contain a variety of organic, inorganic ions, these ions can easily result in reduced catalyst activity. In this paper, Degussa production of nano TiO 2 calcined at 500 ℃ for 2 h, compared the activation of the activated and non-activated TiO 2 on the the phenol photocatalytic activity found to improve TiO 2 photocatalytic activity. Phenol as target contaminants nano TiO 2 as a photocatalyst, the fixed the pollutants initial concentration, amount of catalyst, light intensity and irradiation time, inspect water common inorganic anions (SO 4 of < / sub> 2 - , NO 3 - , H2PO4-, HCO 3 - CO32-) TiO 2 Photocatalytic Degradation of Phenol, 3 4 2 - and NO > - photocatalytic activity, H2PO4-can significantly improve the photocatalytic activity, while the HCO 3 - and CO32-reducing TiO 2 photocatalytic activity, and the proposed impact mechanism. Similarly, the study of the halogen inorganic anions (F-, Cl-, Br-, the I-the ClO4-, of ClO , 3 - and the BrO 3 - ) TiO 2 Photocatalytic Degradation of phenol, F-, Cl-, Br-, and I-different degrees of inhibition of phenol photocatalytic reaction, ClO4-, ClO 3 - and the BrO 3 - promote the photocatalytic degradation of phenol . Also studied the inorganic anions and the presence of various inorganic anion conditions the TiO 2 under ultraviolet light photocatalytic degradation of phenol reaction kinetics, and found that regardless of the inorganic anion is saved and there is no phenol The reactions are first-order reaction.
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