Core-shell SiO2/Ag composite spheres: synthesis, characterization and photocatalytic properties

• Autorzy: Wu Z. G. , Jia Y. R. , Wang J. , Guo Y. , Gao J. F.

Identyfikatory

DOI

10.1515/msp-2016-0121

• Języki publikacji: EN

Abstrakty

EN

Core-shell SiO₂/Ag composite spheres with dense, complete and nanoscaled silver shell were prepared by using a novel facile chemical reduction method without surface modification of silica at room temperature. The core-shell composites were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), UV-Vis spectroscopy and energy dispersive X-ray spectroscopy (EDX). The photocatalytic properties towards the degradation of methyl orange (Mo) of the prepared SiO₂//Ag composites were also tested. The studies showed that the surface of SiO₂/ microspheres was homogeneously and completely covered by Ag nanoparticles and the composite exhibited excellent photocatalytic activities. The possible reaction mechanisms for the formation of the silica-silver core-shell spheres were also discussed in this paper.

Słowa kluczowe

EN

core-shell; SiO2/Ag; composite; deposition; photocatalytic property

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2016
• Tom: Vol. 34, No. 4
• Strony: 806--810
• Opis fizyczny: Bibliogr. 26 poz., rys.

Twórcy

autor

Wu Z. G.

• Department of Chemistry, School of Science, North University of China, Taiyuan, 030051, Shanxi Province, P.R. China

autor

Jia Y. R.

• Department of Chemistry, School of Science, North University of China, Taiyuan, 030051, Shanxi Province, P.R. China

autor

Wang J.

• Department of Chemistry, School of Science, North University of China, Taiyuan, 030051, Shanxi Province, P.R. China

autor

Guo Y.

• Department of Chemistry, School of Science, North University of China, Taiyuan, 030051, Shanxi Province, P.R. China

autor

Gao J. F.

• Department of Chemistry, School of Science, North University of China, Taiyuan, 030051, Shanxi Province, P.R. China

Bibliografia

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Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).