One–step Synthesis of Surface Modification ZnO Nanopowders by Mechanochemical Reaction

Chin J Mater Res

2010, Vol. 24

Issue (3): 289-293 DOI:

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One–step Synthesis of Surface Modification ZnO Nanopowders by Mechanochemical Reaction

WEI Wei, WANG Ming, WANG Linjiang

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WEI Wei WANG Ming WANG Linjiang. One–step Synthesis of Surface Modification ZnO Nanopowders by Mechanochemical Reaction. Chin J Mater Res, 2010, 24(3): 289-293.

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Abstract

Zinc oxide nanopowder with hydrophobic surface was synthesised by mechanochemical reaction using zinc acetate sodium hydroxide and stearic acid as raw materials. The modification mechanism of stearic acid on the surface property of ZnO was studied using XRD, FT–IR, TEM and particle size measurement. The experiment results show that an organic film was formed through covalent bond between the carboxyl of stearic acid and hydroxylic on the ZnO surface. The surface property of ZnO nanopowder was changed from hydrophilic to hydrophobic coated with a monomolecular layer of aliphatic
chains. When the milling time is 50 min and the mass content of stearic acid in ZnO 4.5%, the ZnO nanopowder with optimal modification effect can be achieved.

Key words: mechanochemical reaction, zinc oxide, surface modification

Received: 01 March 2010

ZTFLH:

O614

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Supported by National Natural Science Foundation of China No.40972033, Scientific Research Fund of Guangxi Provincial Education Department No.200708MS130, and the Open Project Program of Key Laboratory of New Processing Technology for Nonferrous Metals and Materials (Guilin University of Technology),

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https://www.cjmr.org/EN/ OR https://www.cjmr.org/EN/Y2010/V24/I3/289

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