期刊
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
卷 71, 期 -, 页码 501-509出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jtice.2016.12.013
关键词
MnFe2O4; Cationic dyes; Diatomite; Adsorption isotherm; Kinetic models
资金
- Fundamental Research Funds for the Central Universities [2015QH01]
The novel magnetic MnFe2O4/cliatomite composites were synthesized via a precipitation/hydrothermal method combined with alkali treatment. The microstructure and interface properties of the obtained composites were characterized by X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS) and zeta potential analyzer. The adsorption behaviors of as received magnetic MnFe2O4/diatomite composite adsorbents for cationic dyes including methylene blue and basic fuchsine have been investigated in this study. The batch adsorption experiments showed that the adsorption process was very fast and the kinetic data well fitted with pseudo-second-order model. The adsorption isotherms well followed the Langmuir isotherm model, and the maximal adsorption capacity for methylene blue and basic fuchsine can reach 104.06 and 284.09 mg/g at 318 K, respectively. The adsorption behavior of the MnFe2O4/diatomite composite is an endothermic and spontaneous process. The magnetic MnFe2O4/diatomite composite can be a promising candidate as an adsorbent for the removal of cationic dyes from wastewater. (C) 2016 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据