Preparation and the adsorption ability of thiolated magnetic core-shell Fe3O4@SiO2@C-SH for removing Hg2+ in water solution

被引：32

作者：

Shi, Zhennan ^{[1
]}

Xu, Chen ^{[1
]}

Lu, Peng ^{[1
]}

Fan, Lu ^{[1
]}

Liu, Yana ^{[1
]}

Wang, Yingxi ^{[1
]}

Liu, Li ^{[1
]}

Li, Ling ^{[1
]}

机构：

[1] Hubei Univ, Minist Educ, Hubei Collaborat Innovat Ctr Adv Organ Chem Mat, Key Lab Synth & Applicat Organ Funct Mol, Wuhan 430062, Hubei, Peoples R China

来源：

MATERIALS LETTERS | 2018年 / 225卷

关键词：

Functional; Composite materials; Magnetic materials; AQUEOUS-SOLUTION; NANOPARTICLES; HG(II);

D O I：

10.1016/j.matlet.2018.04.098

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A thiolated magnetic double- layered core- shell particles Fe3O4@SiO2@C-SH is synthesized and characterized. The application in Hg2+ removal is discussed. The removal can finished in 10 min with high efficiency, and the maximum adsorption capacity is 184.00 mg/ g. The adsorption fits the Freundlich adsorption isotherm and the adsorption kinetic is the second-order kinetic. Through DubininRadushkevich (D-R) isothermal adsorption analysis, it is found the adsorption for Hg2+ is mainly physical adsorption, accompanied by chemical one. The method provides a new way for designing double-layered materials aiming to remove heavy metal in waste water. (C) 2018 Elsevier B. V. All rights reserved.

引用

页码：130 / 133

页数：4

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