Authors: Qian Wen Cao Yi Fan Zheng Hao Yong Yin Xu Chun Song
Publish Date: 2016/01/28
Volume: 51, Issue: 9, Pages: 4559-4565
Abstract
A novel AgI/AgIO3 heterojunction photocatalyst was prepared through a mild ionexchange method at room temperature Their photocatalytic activities were assessed by the photodegradation of rhodamine B RhB under simulated solar light The AgI/AgIO3 composites performed better photocatalytic activities than pure AgI and AgIO3 with 15 AgI/AgIO3 heterojunction showing the highest photocatalytic efficiency among all the heterojunction samples Moreover the 15 AgI/AgIO3 hybrid photocatalyst also showed excellent repeatability and stability during photocatalytic reaction The improvement of photocatalytic performance can be attributed to effective separation of photoexcited electrons and holes at the interface of AgI/AgIO3 composites Radical trap experiments determined that the O2·− radical was the main reactive species for the photodegradation of RhB
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