Preparation of ZnO-BiOCl Composite and its Visible-light Photocatalytic Degradation of RhB

Abstract

Abstract The ZnO-BiOCl composite were prepared by a soft chemical method. And crystalline phase, morphology, optical property and photocatalytic efficiency of ZnO-BiOCl compound semiconductors were studied by XRD, SEM, DRS and RhB photodegradation under visible-light irradiation. The results showed that ZnO-BiOCl compound semiconductor was significantly more active than ZnO or BiOCl, since ZnO-BiOCl compound semiconductor may facilitate the transfer of charge carriers and retard the e - -h + recombination. Moreover, the photocatalytic degradation of RhB over ZnO-BiOCl composite sample is the highest, which is also caused by the combination of the photocatalytic performance of ZnO and the photosensitization performance of BiOCl.