铁酸锰/腐植酸复合材料制备及其对亚甲基蓝吸附性能

靳廷甲 章祥林 徐建

引用本文: 靳廷甲, 章祥林, 徐建. 铁酸锰/腐植酸复合材料制备及其对亚甲基蓝吸附性能[J]. 应用化学, 2016, 33(3): 336-342. doi: 10.11944/j.issn.1000-0518.2016.03.150257 shu
Citation:  JIN Tingjia, ZHANG Xianglin, XU Jian. Preparation of Manganese Ferrite/Humic Acid Composite and Its Adsorption Properties for Methylene Blue[J]. Chinese Journal of Applied Chemistry, 2016, 33(3): 336-342. doi: 10.11944/j.issn.1000-0518.2016.03.150257 shu

铁酸锰/腐植酸复合材料制备及其对亚甲基蓝吸附性能

    通讯作者: 章祥林,教授;Tel/Fax:0551-63513997;E-mail:jtingjia@126.com;研究方向:环境功能材料的制备与应用
  • 基金项目:

    安徽省长三角联合科技攻关项目(1101c0603053) 

    安徽建筑大学校级科技创新基金项目(201310878016)资助 

摘要: 采用化学共沉淀法合成了一种腐植酸(Humic Acid,HA)包覆铁酸锰型磁性复合材料(MnFe2O4/HA)。采用扫描电子显微镜(SEM)、粉末X射线衍射(XRD)和傅里叶变换红外光谱(FT-IR)等技术手段对其进行表征和分析表明,合成产物颗粒大小约200 nm,具有典型的尖晶石结构,腐植酸成功包覆在MnFe2O4颗粒表面,饱和磁化强度为34.01 A·m2/kg,在外界低磁场作用下30 s内便可从水溶液分离。MnFe2O4/HA对亚甲基蓝的吸附是一个准二级动力学过程,在2 h达到平衡,较好的符合Langmuir吸附模型。与MnFe2O4相比其对亚甲基蓝的吸附能力显著增强,室温下pH=9时最大吸附量可以达到29.94 mg/g。MnFe2O4/HA可以作为一种有效去除水体中亚甲基蓝污染物的吸附材料。

English

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  • 收稿日期:  2015-07-21
  • 网络出版日期:  2015-08-21
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