Preparation and optical properties of Cu2O hollow microsphere film and hollow nanosphere powder via a simple liquid reduction approach

被引：30

作者：

Zhang, Weixin ^{[1
]}

Luan, Chunyan

Yang, Zeheng

Liu, Xueting

Zhang, Dapeng

Yang, Shihe

机构：

[1] Hefei Univ Technol, Sch Chem Engn, Hefei 230009, Anhui, Peoples R China

[2] Hong Kong Univ Sci & Technol, Dept Chem, Kowloon, Hong Kong, Peoples R China

[3] Hong Kong Univ Sci & Technol, Inst Nano Sci & Technol, Kowloon, Hong Kong, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2007年 / 253卷 / 14期

基金：

中国国家自然科学基金;

关键词：

nanostructures; chemical synthesis; transmission electron microscopy; X-ray diffraction;

D O I：

10.1016/j.apsusc.2007.01.005

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this work, we report a simple liquid reduction approach to prepare Cu2O hollow microsphere film and hollow nanosphere powder with Cu(OH)(2) nanorods as precursor and ascorbic acid as the reductant at 60 degrees C. When Cu(OH)(2) nanorod array film grown on a copper foil is used as the precursor, Cu2O thin film made up of hollow niicrospheres with average diameter of 1.2 mu m is successfully prepared. When the Cu(OH)(2) nanorods are scraped from the copper foil and then used as the precursor, Cu2O hollow nanosphere powder with the average diameter of 270 mn is obtained. The samples are characterized by X-ray powder diffraction (XRD), field-emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM) and ultraviolet-vis light (UV-vis) absorption spectra. A possible formation mechanism of Cu2O hollow spheres is discussed. (c) 2007 Elsevier BN. All rights reserved.

引用

页码：6063 / 6067

页数：5

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