Issue 12, 2014

Silica/ultrasmall Ag composite microspheres: facile synthesis, characterization and antibacterial and catalytic performance

Abstract

Uniform silica/ultrasmall silver composite microspheres have been prepared from [Ag(NH3)2]+ in the presence of silica microspheres via a hydrothermal process. The reaction temperature plays a critical role in the formation of the as-prepared SiO2/ultrasmall Ag composite microspheres. The as-prepared product was investigated by X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM, JEOL-6700F) and transmission electron microscopy (TEM, JEOL 3010). The silica/ultrasmall silver composite microspheres are 200 nm in diameter and the silica microspheres decorated with ultrasmall Ag nanoparticles have an average diameter of 4 nm. As expected, the as-prepared silica/ultrasmall silver composite microspheres exhibit superior bacteriostatic and bactericidal activities and excellent photodecomposition towards Rhodamine 6G (R6G) dyes.

Graphical abstract: Silica/ultrasmall Ag composite microspheres: facile synthesis, characterization and antibacterial and catalytic performance

Supplementary files

Article information

Article type
Paper
Submitted
20 Nov 2013
Accepted
16 Dec 2013
First published
17 Dec 2013

CrystEngComm, 2014,16, 2365-2370

Author version available

Silica/ultrasmall Ag composite microspheres: facile synthesis, characterization and antibacterial and catalytic performance

X. Liu, Y. Cao, H. Peng, H. Qian, X. Yang and H. Zhang, CrystEngComm, 2014, 16, 2365 DOI: 10.1039/C3CE42372G

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