摘要
采用溶剂热-共沉淀两步法制得环境友好型磁性吸附剂四氧化三铁/镁铁类水滑石复合物(Fe3O4@Mg-Fe-LDH)。以甲基橙(MO)为模拟污染物,研究了各因素对Fe3O4@Mg-Fe-LDH吸附性能的影响。结果表明,MO的初始质量浓度为140mg/L时,Fe3O4表面包覆Mg-Fe-LDH为55%、吸附溶液的pH控制在4.5~7.0时吸附效果最佳,且吸附规律符合Langmuir模型。
Fe3O4/Mg-Fe layered double hydroxides(Fe3O4@Mg-Fe-LDH),an environment friendly adsorbent,was prepared by a two-step solvothermal-coprecipitation method.Taking methyl orange(MO)as a simulated contaminant,the effects of various factors on the adsorption performance of Fe3O4@Mg-Fe-LDH were studied.The results showed that the optimum condition for MO removal was obtained,when the coated-quantity of Mg-Fe-LDH on Fe3O4 was 55%,the solution pH was controlled at 4.5-7.0 and the MO concentration was 140 mg/L.The adsorption of MO on Fe3O4@Mg-Fe-LDH conforms to the Langmuir model well.
作者
吴永娟
王晓兰
闫俊英
刘博
Wu Yongjuan;Wang Xiaolan;Yan Junying;Liu Bo(Department of Chemistry and Chemical Engineering,Shaanxi Xueqian Normal University,Xi’an 710100,China;Key Laboratory of Applied Surface and Colloid Chemistry(MOE),School of Chemistry&Chemical Engineering,Shaanxi Normal University,Xi’an 710062,China;College of Chemistry and Material Science,Hebei Normal University,Shijiazhuang 050024,China;Xi’an University of Science and Technology,Xi’an 710054,China)
出处
《工业水处理》
CAS
CSCD
北大核心
2019年第11期49-53,共5页
Industrial Water Treatment
基金
国家自然科学基金(B070202,51904233)
陕西省自然科学基金(2016JM2018,2017JQ5023)
陕西省教育科学“十三五”规划2016年度课题(SGH16H133)
