公开(公告)号：US11534741B2

公开(公告)日：2022-12-27

申请号：US17596268

申请日：2020-09-08

Applicant: CQC INTIME TESTING TECHNOLOGY CO., LTD.

Inventor： Yixin Zhu ,  Jie Wang ,  Xiyu Song ,  Yang Zhou ,  Mei Zhang

IPC: B01J23/80 ,  C02F1/72 ,  B01J35/00 ,  B01J37/04 ,  B01J37/03 ,  B01J37/02 ,  B01J37/00 ,  B01J37/06 ,  B01J37/08 ,  B01J38/12 ,  B01J23/94 ,  C02F1/32 ,  C02F101/16 ,  C02F101/30

Abstract: An organic wastewater treatment method based on a multi-element co-doping TiO2 nano photocatalytic material includes preparing a sulfur-titanium dioxide mixture, hydrothermally reacting the sulfur-titanium dioxide mixture with copper chloride, ammonia, strong alkali, a transition metal salt and the like, reacting the resulting reaction product with hydrofluoric acid, then performing temperature programming thermal treatment in air to obtain the multi-element co-doping TiO2 nano photocatalytic material, and then treating organic wastewater with the multi-element co-doping TiO2 nano photocatalytic material under the irradiation of visible light. The organic wastewater treatment method is efficient and rapid, safe and environmental-friendly, can thoroughly degrade many types of organic pollutants, ammonia nitrogen and the like, and does not cause secondary pollution; furthermore, the adopted multi-element co-doping TiO2 nano photocatalytic material can be regenerated and recycled only by simple calcination, and the cost is inexpensive.