Photocatalysis and rotating dynamic membrane hybrid system with Fe-ZnIn2S4 efficiently removes 2,4,6-Tribromophenol in water:effect of dynamic membrane

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 nonoCaCO3 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 nanoCaCO3,respectively.And,the COD removal efficiencies were in the order of nanoCaCO3 (72%) > graphite oxide (51%)>graphene oxide (42%).NanoCaCO3 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.

关键词： Photocatalytic membrane reactor Dynamic membrane NanoCaCO3 Graphene oxide

作者: Bo Gao Lifen Liu Jiadong Liu Fenglin Yang

作者单位: Key Laboratory of Industrial Ecology and Environmental Engineering, MOE, School of Environmental Science and Technology,Dalian University of Technology, Dalian 116024, China

会议类型: 国际会议

会议名称: 2013 International Symposium on Environmental Science and Technology(2013环境科学与技术国际会议)

会议地点: 大连

会议语种:英文

页码: 411-414

在线出版日期: 2013-06-04（万方平台首次上网日期，不代表论文的发表时间）