Abstract
Novel visible-light-driven photocatalyst AgI/ZnSn(OH)(6) (AgI/ZSH) was synthesized by a facile deposition-precipitation method. The effect of several parameters such as the AgI loading, catalysts dosage and initial dye concentration on the photodegradation of rhodamine B (RhB) was investigated. The degradation efficiency of RhB could be almost 100% within 40 min and the removal rate of TOC reached 91% within 60 min at 20% AgI/ZSH dosage 1 g/L, which was 34 and 4.6 times of ZSH and AgI, respectively. The enhanced photoactivity of AgI/ZSH should be contributed to the faster separation of electron-hole pairs with ZSH as an electron trap. (C) 2015 Elsevier B.V. All rights reserved.