Nitrogen-titanium dioxide/bismuth trioxide ternary compound photocatalysis material as well as preparation method and application thereof

氮-二氧化钛/三氧化二铋三元复合光催化材料及制备方法和用途

Abstract

本发明涉及一种氮-二氧化钛/三氧化二铋的三元复合光催化材料,该材料的分子式为N-TiO2/Bi2O3,采用水热法制备,其中N-TiO2为锐钛矿型,为不溶于水的土黄色粉末,该材料相对TiO2(P25)具有高的催化活性,在1小时内对浓度为50mg/L的2,4-二氯酚的降解率达95%以上。本发明所述的材料具有降解速度快,无二次污染,催化剂易得、便宜,运行费用低,设备简单,投资少效果好的特点。
The invention relates to a nitrogen-titanium dioxide/bismuth trioxide ternary compound photocatalysis material. A molecular formula of the material is N-TiO2/Bi2O3. The nitrogen-titanium dioxide/bismuth trioxide ternary compound photocatalysis material is prepared by using a water heating method, wherein N-TiO2 is an anatase type and is water-fast khaki powder. Compared with TiO2(P25), the nitrogen-titanium dioxide/bismuth trioxide ternary compound photocatalysis material has high catalytic activity; and the degradation rate of 2,4-dichlorophen with the concentration of 50 mg/L within one hour reaches up to be more than 95%. The material provided by the invention has the advantages of high degradation speed, no secondary pollution, easiness in obtaining catalysts, low price, low operation cost, simple equipment, less investment and good effect.

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