| Photocatalytic technology is a promising technology in the filed of energy regeneration and environmental treatment.Due to the unique electronic properties,structure and high stability,phosphotungstic acid show good applications in photocatalysis.In this paper,the(CuC10H26N6)3(PW12O40)2 was used as the photocatalytic material,and the photocatalytic efficiency of the macrocyclic copper of phosphotungstic acid was improved by constructing different photocatalytic heterojunctions.The main research contents of this paper are as follows:（1）A new(CuC10H26N6)3(PW12O40)2-CdS contraditional heterojunction composite was successfully prepared by a simple and effective synthesis method.The(CuC10H26N6)3(PW12O40)2-CdS composite has significant visible light photocatalytic activity for tetracycline and RhB pollutants.Among them,CuPW-CdS-10 should the best photocatalytic performance,and the degradation rate of tetracycline and Rhodamine B reache 79%and 91%,respectively.The intermediates of tetracycline degradation and the photocatalytic mechanism of traditional heterojunctions were investigated.The advantages and disadvantages of traditional heterojunctions were further analyzed.（2）In order to make this system have a strong redox potential,the high photogenerated electron and hole separation,we synthesized Z-(CuC10H26N6)3(PW12O40)2-AgCl@Ag heterostructure photocatalyst by aqueous solution method.The CPA-2 sample can degrade 65%DNP,and the H2 production rate is 19.28μmolg-1h-1.The Z-scheme photocatalytic notonly remains the high optimal redox ability,but also can inhibit the recombination of photogenerated electrons and holes,which successfully overcomes the shortcomings of the traditional heterojunction.（3）(CuC10H26N6)3(PW12O40)2-Fe2O3 not only overcomes the shortcoming,but also inhibit the self-degradation of macrocyclic copper under photo-Fenton degradation conditions.This composites have excellent photo-Fenton degradation performance.Phenolic was completely degraded within 120 min.We invistaged the rate of degradation of different phenolic by photo-Fenton degradation,and further proposed a reasonable photo-Fenton degradation mechanism.（4）(CuC10H26N6)3(PW12O40)2-TiO2 was successfully synthesized by a water bath method.The(CuC10H26N6)3(PW12O40)2-TiO2 was characterized by XRD,SEM,DRS,TEM and other characterization methods.The results showed that TiO2 was completely loaded onto(CuC10H26N6)3(PW12O40)2 successfully.The photocatalytic splitting water test of the composite system was carried out. |
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