Synthesis of novel hierarchically porous Fe3O4@MgAl-LDH magnetic microspheres and its superb adsorption properties of dye from water
Synthesis of novel hierarchically porous Fe3O4@MgAl-LDH magnetic microspheres and its superb adsorption properties of dye from water
复制标题
新型分级多孔Fe3O4@MgAl-LDH磁性微球的合成及其对水中染料的优异吸附性能
DOI：
10.1016/j.jiec.2016.10.045
复制
发表时间：
2017-02-25
影响因子：
6.1
通讯作者：
Zuo, Min
中科院分区：
文献类型：
--
作者：
Lu, Lu;Li, Jia;Zuo, Min
报道了一种新型的多级孔Fe 3 O 4 @ MgAl-LDH磁性微球对水中阴离子染料的吸附性能。所制备的磁性微球具有垂直/倾斜/水平取向的片状包覆形貌，对刚果红（CR）的吸附容量高达813.0 mg/g，是目前磁性吸附剂的最高吸附容量。微球对氯丁橡胶的吸附动力学和吸附等温线分别符合准二级动力学和Langmuir吸附等温式，吸附过程为自发吸热过程。吸附后的样品可用甲醇再生，易于从水溶液中磁分离。合成的材料可能作为环境过程的优良吸附剂。(C)2016年韩国工业与工程化学学会。Elsevier B. V.出版，保留所有权利。
Hierarchically porous Fe3O4@MgAI-LDH magnetic microspheres were reported as novel efficient adsorbent for the removal of anionic dye from water. The as-prepared microspheres had vertically/slantly/horizontally oriented platelets-coated morphology, and exhibited superb adsorption capacity of 813.0 mg/g for Congo red (CR), which was the highest reported value of magnetic adsorbents. The adsorption kinetics and isotherm of CR on microspheres followed the pseudo-second-order and Langmuir model, respectively, and the adsorption processes were spontaneous and endothermic in nature. The adsorbed samples could be regenerated by methanol, and easily magnetically separated from aqueous solution. The synthesized materials might act as excellent adsorbents for environmental processes. (C) 2016 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.