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Nanomaterials 2017, 7(8), 217; doi:10.3390/nano7080217

Preparation and Characterization of ZnO Nanoparticles Supported on Amorphous SiO2

Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences (Beijing), Beijing 100083, China
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Received: 30 June 2017 / Revised: 21 July 2017 / Accepted: 24 July 2017 / Published: 10 August 2017
(This article belongs to the Special Issue ZnO and TiO2 Based Nanostructures)
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Abstract

In order to reduce the primary particle size of zinc oxide (ZnO) and eliminate the agglomeration phenomenon to form a monodisperse state, Zn2+ was loaded on the surface of amorphous silica (SiO2) by the hydrogen bond association between hydroxyl groups in the hydrothermal process. After calcining the precursors, dehydration condensation among hydroxyl groups occurred and ZnO nanoparticles supported on amorphous SiO2 (ZnO–SiO2) were prepared. Furthermore, the SEM and TEM observations showed that ZnO nanoparticles with a particle size of 3–8 nm were uniformly and dispersedly loaded on the surface of amorphous SiO2. Compared with pure ZnO, ZnO–SiO2 showed a much better antibacterial performance in the minimum inhibitory concentration (MIC) test and the antibacterial properties of the paint adding ZnO–SiO2 composite. View Full-Text
Keywords: amorphous SiO2; load; monodisperse; ZnO nanoparticle; antibacterial amorphous SiO2; load; monodisperse; ZnO nanoparticle; antibacterial
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Chen, Y.; Ding, H.; Sun, S. Preparation and Characterization of ZnO Nanoparticles Supported on Amorphous SiO2. Nanomaterials 2017, 7, 217.

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