Cu2O hollow structures—microstructural evolution and photocatalytic properties

Baoshun Wang; Weiwei Zhang; Zhiyun Zhang; Renying Li; Yulong Wu; Zhengguang Hu; Xiaoling Wu; Chungang Guo; Guoan Cheng; Ruiting Zheng

doi:10.1039/C6RA22474A

Cu₂O hollow structures—microstructural evolution and photocatalytic properties†

Baoshun Wang,^a Weiwei Zhang,^b Zhiyun Zhang,^a Renying Li,^a Yulong Wu,^a Zhengguang Hu,^a Xiaoling Wu,^a Chungang Guo,^a Guoan Cheng^a and Ruiting Zheng*^a

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* Corresponding authors

^a Key Laboratory of Radiation Beam Technology and Materials Modification of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, P. R. China
E-mail: rtzheng@bnu.edu.cn

^b School of Science, Minzu University of China, Beijing 10081, PR China

Abstract

In this paper, Cu₂O Single-Shelled Hollow (SSH) sub-micron spheres, Multi-Shelled Hollow (MSH) sub-micron spheres and Multi-Shelled Porous (MSP) sub-micron spheres were successfully synthesized via a facile one-pot route in the presence of hexadecyltrimethylammonium bromide (CTAB) and ascorbic acid (VC). It is found that the morphology and structure of Cu₂O hollow nanoparticles can be adjusted by changing alkalinity and aging time. The formation mechanism and structural evolution for these hollow structures is studied. Among three kinds of Cu₂O hollow spheres, the Cu₂O MSH sub-micron spheres demonstrated the best photo-catalytic (PC) property, which should attribute to the higher light absorption and smaller band gap.

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Cu₂O hollow structures—microstructural evolution and photocatalytic properties†

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