Ball-milling preparation of ZnFeO/AgI nanocomposite with enhanced photocatalytic activity.

Semiconductor photocatalytic technology is increasingly being utilized in wastewater treatment due to its high efficiency, low energy consumption and environmental friendliness. However, single photocatalysts often exhibit low catalytic performance. In this study, a ZnFeO/AgI composite photocatalyst was initially prepared using a high-energy ball-milling method.

Synthesis of AgBr/TiC@TiO ternary composite for photocatalytic dehydrogenation of 1,4-dihydropyridine and photocatalytic degradation of tetracycline hydrochloride.

In this work, AgBr/TiC@TiO ternary composite photocatalyst was prepared by a solvothermal and precipitation method with the aims of introducing TiC as a cocatalyst and TiO as a compositing semiconductor. The crystal structure, morphology, elemental state, functional groups and photoelectrochemical properties were studied by XRD, SEM, TEM, XPS, FI-IR and EIS. The photocatalytic performances of the composites were investigated by the photodehydrogenation of diethyl 1,4-dihydro-2,6-dimethyl-3,5-pyridinedicarboxylate (1,4-DHP) and the photodegradation of tetracycline hydrochloride (TCH) under visible light irradiation ( > 400 nm).