摘要
以纤维素和氯化亚铁为主要原料,制备了一种新型的磁性纳米复合材料,用于吸附水溶液中的亚甲基蓝,探索了Fe_3O_4与纤维素的质量比、反应时间、吸附剂用量、亚甲基蓝初始浓度等对材料吸附性能的影响。结果表明,Fe_3O_4/纤维素复合材料吸附亚甲基蓝的最佳条件为:2 mL初始浓度10 mg/L的亚甲基蓝废水,Fe_3O_4/纤维素质量比为1∶8,吸附剂用量为8 mg,吸附反应时间为10 min。在此条件下,Fe_3O_4/纤维素复合材料对亚甲基蓝的去除率可达91%。Fe_3O_4/纤维素复合材料吸附亚甲基蓝的过程符合Langmuir模型。该新型复合材料的吸附性能和磁性能有力的结合,使其具有易分离、易回收且能够循环利用的特点。同时,该材料制作成本低、适宜大规模生产。
A new kind of magnetic nanocomposites was prepared by using cellulose and ferrous chloride as the main raw materials,which was used to adsorb methylene blue in an aqueous solution.The effects of the mass ratio of Fe3O4 to cellulose,the adsorption time,the amount of adsorbent and the initial concentration of methylene blue on the adsorption of Fe3O4 were studied.The result showed that the optimized experiment was carried out to adsorb methylene blue by Fe3O4/cellulose composites:2 mL methylene blue wastewater with an initial concentration of 10 mg/L,the mass ratio of Fe3O4/cellulose was 1∶8,adsorbent dosage was 8 mg and the adsorption reaction time was 10 min.Under this condition,the removal rate of methylene blue by Fe3O4/cellulose composites can reach 91%.The adsorption of methylene blue by Fe3O4/cellulose composites is consistent with the Langmuir model.The combination of adsorption and magnetic properties of the new composite material makes it easy to separate,easy to recycle and recyclable.At the same time,the material is low in production cost and suitable for mass production.
作者
赖金花
刘凯
杨聪
陶玉婷
吴迪
刘贤响
LAI Jin-hua;LIU Kai;YANG Cong;TAO Yu-ting;WU Di;LIU Xian-xiang(National & Local Joint Engineering Laboratory for New Petro-Chemical Materials and Fine Utilization of Resources,College of Chemistry and Chemical Engineering,Hunan Normal University,Changsha 410081,China)
出处
《应用化工》
CAS
CSCD
北大核心
2019年第1期68-71,共4页
Applied Chemical Industry
基金
国家自然科学基金(21606082)
湖南省教育厅资助科研项目(17C0951)
湖南师范大学大学生创新性实验项目(2017101)
