A facile route to controlled synthesis of Co3O4 nanoparticles and their environmental catalytic properties

被引：181

作者：

Dong, Yuming

He, Kun

Yin, Lin

Zhang, Aimin ^{[1
]}

机构：

[1] Nanjing Univ, Key Lab Mesoscop Chem, Sch Chem & Chem Engn, Nanjing 210093, Peoples R China

[2] Nanjing Univ, Dept Earth Sci, Nanjing 210093, Peoples R China

来源：

NANOTECHNOLOGY | 2007年 / 18卷 / 43期

关键词：

D O I：

10.1088/0957-4484/18/43/435602

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Using ammonia and Co(CH3COO)(2) center dot 4H(2)O as starting materials, a facile and surfactant- free route to controlled synthesis of Co3O4 nanoparticles was proposed. Co3O4 nanoparticles with average sizes of 3.5, 6, 11, 19 and 70 nm were obtained through adjusting the ethanol amount in the solvent ( the ratio of ethanol to water) or the concentration of raw materials. In this process, the presence of enough O-2 was crucial for the formation of pure Co3O4 phase. The environmental catalytic properties of as- obtained Co3O4 nanoparticles were investigated. The results indicated their remarkable catalysis for ozonation degradation of phenol, which denoted a promising application as catalyst in waste- water treatment.

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页数：6

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共 35 条

[1] Phenol degradation using hydroxyl radicals generated from zero-valent iron and hydrogen peroxide [J].

Bremner, DH ;

Burgess, AE ;

Houllemare, D ;

Namkung, KC .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2006, 63 (1-2) :15-19

[2] Activity and resistance of iron-containing amorphous, zeolitic and mesostructured materials for wet peroxide oxidation of phenol [J].

Calleja, G ;

Melero, JA ;

Martínez, F ;

Molina, R .

WATER RESEARCH, 2005, 39 (09) :1741-1750

[3] Preparation of mesoporous nanocrystalline Co3O4 and its applicability of porosity to the formation of electrochemical capacitance [J].

Cao, L ;

Lu, M ;

Li, HL .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2005, 152 (05) :A871-A875

[4] Size-controlled growth of Co3O4 nanocubes [J].

Feng, J ;

Zeng, HC .

CHEMISTRY OF MATERIALS, 2003, 15 (14) :2829-2835

[5] Co3O4 nanoboxes:: Surfactant-templated fabrication and microstructure characterization [J].

He, T ;

Chen, DR ;

Jiao, XL ;

Wang, YL .

ADVANCED MATERIALS, 2006, 18 (08) :1078-+

[6] Solubility-controlled synthesis of high-quality Co3O4 nanocrystals [J].

He, T ;

Chen, DR ;

Jiao, XL ;

Wang, YL ;

Duan, YZ .

CHEMISTRY OF MATERIALS, 2005, 17 (15) :4023-4030

[7] Controlled synthesis of Co3O4 nanoparticles through oriented aggregation [J].

He, T ;

Chen, DR ;

Jiao, XL .

CHEMISTRY OF MATERIALS, 2004, 16 (04) :737-743

[8] Fabrication of morphology and crystal structure controlled nanorod and nanosheet cobalt hydroxide based on the difference of oxygen-solubility between water and methanol, and conversion into Co3O4 [J].

Hosono, E ;

Fujihara, S ;

Honma, I ;

Zhou, HS .

JOURNAL OF MATERIALS CHEMISTRY, 2005, 15 (19) :1938-1945

[9] Size- and shape-controlled magnetic (Cr, Mn, Fe, Co, Ni) oxide nanocrystals via a simple and general approach [J].

Jana, NR ;

Chen, YF ;

Peng, XG .

CHEMISTRY OF MATERIALS, 2004, 16 (20) :3931-3935

[10] Moderate temperature synthesis of nanocrystalline Co3O4 via gel hydrothermal oxidation [J].

Jiang, Y ;

Wu, Y ;

Xie, B ;

Xie, Y ;

Qian, YT .

MATERIALS CHEMISTRY AND PHYSICS, 2002, 74 (02) :234-237

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