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论文类型：会议论文

发表时间：2013-01-01

收录刊物：CPCI-S、SCIE

卷号：18

页面范围：509-514

关键字：Photocatalytic membrane reactor; Dynamic membrane; NanoCaCO(3); Graphene oxide

摘要：A photo-catalysis and dynamic membrane reactor system (PMR), with coated dynamic layer on polypropylene non-woven fabric material, was studied for continuous photocatalysis and retention of catalysts in a single device, in removing halogenated compound 2,4,6-Tribromophenol in water. Different dynamic layer materials such as graphite oxide, graphene oxide and nonoCaCO(3) were applied to evaluate the efficiency in removing COD, 2,4,6-Tribromophenol and in debromination. The pre-coated dynamic membrane can significantly enhance the filtration performance and improve the debromination efficiency. The PMR system with dynamic layer and Fe-ZnIn2S4 photocatalyst completely removed 2,4,6-Tribromophenol when the retention time maintained 2.0 h in the continuous mode. The hybrid system achieved 58%, 74% and 85% debromination when the dynamic layer materials were graphite oxide, graphene oxide and nanoCaCO(3), respectively. And, the COD removal efficiencies were in the order of nanoCaCO(3) (72%)> graphite oxide (51%)> graphene oxide (42%). NanoCaCO(3) was found able to assist and improve debromination efficiency during UV irradiated photolysis. The combination of dynamic membrane and photocatalysis provides a new alternative for practical application of photocatalysis. (C) 2013 The Authors. Published by Elsevier B.V.