Journal of Nanomaterials & Molecular NanotechnologyISSN: 2324-8777

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Research Article, J Nanomater Mol Nanotechnol Vol: 3 Issue: 3

Fabrication of Cu Hollow Microspheres by Liquid Reduction Method

Liye Xu1, Da Kuang2*, Wenbin Hu1 and Yida Deng1*
State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
Department of Mechanical and Manufacturing Engineering, University of Calgary, Calgary, AB, Canada T2N 1N4
Corresponding authors : Dr. Da Kuang
Department of Mechanical and Manufacturing Engineering, University of Calgary, Calgary, AB Canada T2N 1N4
Tel: +1 587 889 0190; Fax: +1 403 220 7664
E-mail: [email protected]
Dr. Yida Deng
State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
E-mail: [email protected]
Received: March 08, 2014 Accepted: April 18, 2014 Published: April 23, 2014
Citation: Liye X, Kuang D, Wenbin H, Deng Y (2014) Fabrication of Cu Hollow Microspheres by Liquid Reduction Method. J Nanomater Mol Nanotechnol 3:3. doi:10.4172/2324-8777.1000147

Abstract

Fabrication of Cu Hollow Microspheres by Liquid Reduction Method

Cu hollow microspheres have been successfully synthesized through a two-step liquid reaction method. Firstly, Cu(OH)2 precipitates were formed by adding CuSO4•5H2O into NaOH and they were reduced to Cu2O solid microspheres by glucose. Then, PVP and allylthiourea were added to the Cu2O suspension and they were further reduced to Cu hollow microspheres by hydrazine hydrate. The sample was characterized by X-ray diffraction, Field-emission scanning electron microscopy, and transmission electron microscopy. The results showed the Cu hollow microspheres with average diameter about 800nm. The growth process of Cu hollow microspheres was proposed and the photocatalytic property in degradation reaction of methylene blue (MB) was also explored. It was found that the morphology and hollow structure of the Cu microspheres are highly dependent on the amount of allylthiourea added. Compared to the Cu microparticles with irregular morphology, Cu hollow microshperes show much higher photocatalytic activity in the degradation reaction of MB.

Keywords: Hollow structures; Cu microspheres; Hydrazine hydrate; Allylthiourea; Photocatalytic degradation

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