Self-assembled Co3O4 porous nanostructures and their photocatalytic activity

被引：67

作者：

Chen, Youcun ^{[1
]}

Hu, Lin ^{[1
]}

Wang, Min ^{[1
]}

Min, Yulin ^{[1
]}

Zhang, Yuanguang ^{[1
]}

机构：

[1] Anqing Normal Coll, Sch Chem & Chem Engn, Anqing 246011, Peoples R China

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2009年 / 336卷 / 1-3期

基金：

美国国家科学基金会;

关键词：

Microporous materials; Nanostructures; Electron microscopy; Surface; HOLLOW SPHERES; 3-DIMENSIONAL NANOSTRUCTURES; FORMATION MECHANISM; NICKEL-HYDROXIDE; BATTERIES; MICROPARTICLES; MICROSPHERES; ORGANIZATION; ALPHA-FE2O3; FABRICATION;

D O I：

10.1016/j.colsurfa.2008.11.018

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：

Co3O4 hollow microspheres were synthesized by a two-step method in ethylene glycol (EG) system. First, the cobalt oxide precursor was produced in the presence of ethylene glycol (EG) by using cobalt chloride hexahydrate (CoCl2 center dot 6H(2)O) and sodium acetate (NaAc) as reactants. Second, the precursor was calcined to obtain the products of crystalline cobalt oxide. The products were characterized by powder X-ray diffraction (XRD), transmission electron microscopy (TEM), high-resolution TEM (HRTEM) and scanning electron microscopy (SEM). The Brunauer-Emmett-Teller (BET) gas adsorption measurement shows that the products were porous structures with two narrow porous volume distributions. Because of the unique nanostructured hollow structure composed of nanoslices, the photocatalytic activity of the products was examined by measuring the photodegradation of methyl orange solution with ultraviolet radiation. The result shows that our products have a good photocatalytic activity. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：64 / 68

页数：5

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