Fabrication of ordered flower-like ZnO nanostructures by a microwave and ultrasonic combined technique and their enhanced photocatalytic activity

被引：57

作者：

Li, Hui ^{[1
,2
]}

Liu, Er-tao ^{[1
,2
]}

Chan, Frankie Y. F. ^{[3
]}

Lu, Zhong ^{[1
,2
]}

Chen, Rong ^{[1
,2
]}

机构：

[1] Wuhan Inst Technol, Key Lab Green Chem Proc, Minist Educ, Wuhan 430073, Peoples R China

[2] Wuhan Inst Technol, Sch Chem Engn & Pharm, Wuhan 430073, Peoples R China

[3] Univ Hong Kong, Electron Microscope Unit, Hong Kong, Hong Kong, Peoples R China

来源：

MATERIALS LETTERS | 2011年 / 65卷 / 23-24期

关键词：

Nanocrystalline materials; Microstructure; ZnO; Flower-like; Microwave; Ultrasonic; FACILE SYNTHESIS; DIRECT GROWTH; ARRAYS;

D O I：

10.1016/j.matlet.2011.07.049

中图分类号：

T [工业技术];

学科分类号：

120111 [工业工程];

摘要：

Ordered flower-like zinc oxide (ZnO) nanostructures were fabricated via a facile microwave and ultrasonic combined technique. The product was characterized by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and selected area electron diffraction pattern (SAED). The flower-like ZnO nanostructures were assembled by a central petal and six symmetrical petals which grew radially from the center. The flower-like ZnO sample showed an enhanced photocatalytic performance compared with the ZnO microrods for the methylene blue (MB) degradation, which could be attributed to its special structure feature. Au/ZnO and Ag/ZnO nanocomposites were also synthesized and exhibited enhanced photocatalytic efficiency after decorating noble metal nanoparticles on the surface of flower-like ZnO nanostructures. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：3440 / 3443

页数：4

共 24 条

[1]

Facile synthesis of ZnO nanorods by microwave irradiation of zinc-hydrazine hydrate complex [J].