Preparation and Characterization of ZnO Nanoparticles Supported on Amorphous SiO2

被引：62

作者：

Chen, Ying ^{[1
]}

Ding, Hao ^{[1
]}

Sun, Sijia ^{[1
]}

机构：

[1] China Univ Geosci, Sch Mat Sci & Technol, Natl Lab Mineral Mat, Beijing Key Lab Mat Utilizat Nonmetall Minerals &, Beijing 100083, Peoples R China

来源：

NANOMATERIALS | 2017年 / 7卷 / 08期

关键词：

amorphous SiO2; load; monodisperse; ZnO nanoparticle; antibacterial; ANTIBACTERIAL ACTIVITY; SURFACE; STRAIN; AGENT;

D O I：

10.3390/nano7080217

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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.

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