In-situ synthesis of 0D/1D CeO2/Zn0.4Cd0.6S S-scheme heterostructures for boosting photocatalytic remove of antibiotic and chromium

The development of green and efficient photocatalytic materials for the treatment of medical and industrial wastewater has become a current research focus. In this work, the CeO 2 /Zn 0.4 Cd 0.6 S heterojunction with a special 0D/1D morphology was synthesized by a soft chemistry method. The successful construction of the heterojunction was verified by the binding energy migration of XPS and TEM . The photocatalytic activities were determined by photoreduction of hexavalent chromium ions (Cr VI ) and photodegradation of tetracycline hydrochloride (TC). The experimental results showed that the loading of CeO 2 significantly improves the photocatalytic performance of Zn 0.4 Cd 0.6 S, and the loading of 10 wt% CeO 2 has the best photocatalytic activity and structural stability. The S-scheme electron transport mechanism was particularly investigated through active species trapping experiments. This work provides an effective idea for the design of highly stable metal sulfide photocatalysts .