摘要
以混合溴源制备BiOBr,通过水热法制备Sb_2O_3/BiOBr复合光催化剂。在模拟可见光条件下研究了复合光催化材料对水产养殖废水中NH_4^+-N的去除效果。结果表明,当Sb_2O_3的掺杂量为3%,n(NaBr)∶n(CTAB)=1∶1,催化剂用量0.4 g/L时对NH_4^+-N的降解率最高,2 h内NH_4^+-N的降解率达到了89.1%。这与复合物表面羟基(—OH)的产生及其表面强内电场(110)晶面的暴露密切相关。
BiOBr prepared from a mixed bromine source,then Sb2O3/BiOBr composite photocatalyst was prepared by a hydrothermal method.The removal effect of NH4^+-N in aquaculture wastewater on the composite photocatalytic material was studied under simulated sunlight irradiation.The results show that when the doping content of Sb2O3 is 3% and the molar ratio of NaBr ∶CTAB=1 ∶1,when the dosage is 0.4 g/L ,the degradation rate of NH4^+-N is highest,reaching 89.1% in 2 h.This is closely related to the generation of hydroxyl (-OH) on the surface of the complex and the exposure of the (110) crystal plane which have a relatively strong internal electric field.
作者
韦秀丽
张凯
蒋滔
李平
刘科
王冰
方俊华
WEI Xiu-li;ZHANG Kai;JIANG Tao;LI Ping;LIU Ke;WANG Bing;FANG Jun-hua(Institute of Agricultural Engineering,Chongqing Academy of Agricultural Sciences,Chongqing 401329,China;Agricultural Waste Recycling Technology and Equipment R&D Chongqing Key Laboratory,Chongqing 401329,China;Urban Construction and Environmental Engineering,Chongqing University,Chongqing 400045,China)
出处
《应用化工》
CAS
CSCD
北大核心
2019年第3期554-558,562,共6页
Applied Chemical Industry
基金
重庆市社会民生重点项目(csts2017shms-zdyfX0052)
重庆市工厂化农业研发中心建设项目(2016-500107-73-01-001066)
重庆市产业类重点研发计划(cstc2018jszx-cyzd0157)
