Study on photocatalytic degradation of pharmaceutical wastewater by heteropoly acid silver photocatalytic oxidation

2018 4th International Conference on Environmental Science and Material Application

生态环境科学;材料科学

An, Changwei^1 ; Zhang, Danfeng^1 ; Liu, Tong^1 ; Yan, Jingsen^1 ; Yongsheng, E.^1 ; Dai, Wenshuang^1 ; Feng, Yue^1

Department of Biological Medicine and Chemical Engineering, Liao Ning Institute of Science and Technology, Benxi, Liaoning

117004, China^1

关键词: Decolorization rates;    Pharmaceutical wastewater;    Photo catalytic degradation;    Photocatalytic oxidations;    Photocatalytic reactors;    Sodium hydrogen phosphate;    Supported heteropoly acid;    TiO2;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/252/2/022063/pdf
DOI  :  10.1088/1755-1315/252/2/022063

来源: IOP

【 摘 要 】

The heteropoly acid silverwas prepared by using sodium tungstate, two sodium hydrogen phosphate, sodium vanadate and silver nitrate. The silver polyoxometalate was characterized by IR. The results showed that the synthesized salt had Keggin type structure. A supported heteropoly acid silver catalyst was prepared by hydrolyzing titanium dioxide with titanate four butyl acetate gel as a carrier. In the self-made photocatalytic reactor, the effects of catalyst usage, initial pH of wastewater, concentration of experimental wastewater, catalyst dosage and catalyst repetition efficiency on the decolorization rate of pharmaceutical wastewater were investigated.