One-step solvothermal synthesis of epichlorohydrin-modified magnetic Fe3O4 microspheres in ethylene glycol

被引：21

作者：

Chen, Fengxi ^{[1
]}

Liu, Rong ^{[1
]}

Xiao, Shiwei ^{[1
]}

Lin, Manjing ^{[2
]}

机构：

[1] Wuhan Inst Technol, Sch Chem & Environm Engn, Wuhan 430074, Peoples R China

[2] Singapore Hlth Serv Pte Ltd, SingHlth Expt Med Ctr, Singapore 169856, Singapore

来源：

MATERIALS LETTERS | 2014年 / 130卷

关键词：

Magnetic materials; Nanocomposites; Nanocrystalline materials; Fe3O4; SHELL; CORE;

D O I：

10.1016/j.matlet.2014.05.022

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Surface modification is crucial for downstream applications of Fe3O4 microspheres (e.g., bio-separation, catalysis and drug delivery). In the present work, monodisperse magnetic Fe3O4 microspheres of ca. 0.42 mu m are prepared by one-step epichlorohydrin (ECH)-modified solvothermal synthesis in ethylene glycol. ECH is grafted onto the surface of Fe3O4 upon in-situ dehydrochlorination under basic conditions. The resulting surface groups (e.g., 1,2-dihydroxylpropyl) not only prevent Fe3O4 microspheres from aggregation, but also serve as anchoring sites for further functionalization, e.g., bind 14.9 mg/g of Cu2+ by releasing H+ into the aqueous solution. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：101 / 103

页数：3

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