Green synthesis of Fe3O4 nanoparticles with controlled morphologies using urease and their application in dye adsorption

Haitang Shi; Longfei Tan; Qijun Du; Xue Chen; Linlin Li; Tianlong Liu; Changhui Fu; Huiyu Liu; Xianwei Meng

doi:10.1039/C4DT01161A

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Green synthesis of Fe₃O₄ nanoparticles with controlled morphologies using urease and their application in dye adsorption†

Haitang Shi,^ab Longfei Tan,^a Qijun Du,^a Xue Chen,^ab Linlin Li,^a Tianlong Liu,^a Changhui Fu,^a Huiyu Liu^a and Xianwei Meng*^a

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* Corresponding authors

^a Laboratory of Controllable Preparation and Application of Nanomaterials, Research Center for Micro & Nano Materials and Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
E-mail: mengxw@mail.ipc.ac.cn
Fax: +86-10-62554670
Tel: +86-10-82543521

^b University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China

Abstract

This paper describes a simple and environmentally friendly method for the preparation of highly stable dispersions of Fe₃O₄ nanoparticles with controlled morphologies, in the same synthesis system for the first time. During the process, the Fe₃O₄ nanoparticles are formed using urease as a multifunctional reagent, including catalyst, template and dispersant, due to its enzymatic activity and special enzymatic steric structure. A possible formation mechanism for these Fe₃O₄ nanoparticles, which have various morphologies including nanospheres, nanosheets and nanorods, is proposed. The as-prepared nanoparticles show a larger specific surface area and a stronger magnetism, which enhances their dye adsorption capacity and increases their potential for application in wastewater treatment.

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Article information

DOI: https://doi.org/10.1039/C4DT01161A
Article type: Communication
Submitted: 21 Apr 2014
Accepted: 03 Jun 2014
First published: 03 Jun 2014

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Dalton Trans., 2014,43, 12474-12479

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Green synthesis of Fe₃O₄ nanoparticles with controlled morphologies using urease and their application in dye adsorption

H. Shi, L. Tan, Q. Du, X. Chen, L. Li, T. Liu, C. Fu, H. Liu and X. Meng, Dalton Trans., 2014, 43, 12474 DOI: 10.1039/C4DT01161A

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