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Journal of Nanoparticle Research
Erschienen in: Journal of Nanoparticle Research 2/2017

01.02.2017 | Research Paper

Transformation from Ag@Ag3PO4 to Ag@Ag2SO4 hybrid at room temperature: preparation and its visible light photocatalytic activity

verfasst von: Ting Wei, Shanmin Gao, Qingyao Wang, Hui Xu, Zeyan Wang, Baibiao Huang, Ying Dai

Erschienen in: Journal of Nanoparticle Research | Ausgabe 2/2017

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Abstract

In the present study, Ag/Ag2SO4 hybrid photocatalysts were obtained via a facile redox–precipitation reaction approach by using Ag@Ag3PO4 nanocomposite as the precursor and KMnO4 as the oxidant. Multiple techniques, such as X-ray diffraction pattern (XRD), transmission electron microscope (TEM), high-resolution transmission electron microscopy (HRTEM), X-ray photoelectron spectroscopy (XPS), UV–vis diffuse reflectance spectroscopy (DRS) and Brunauer–Emmett–Teller (BET), photocurrent and electrochemical impedance spectroscopy (EIS), were applied to investigate the structures, morphologies, optical, and electronic properties of as-prepared samples. The photocatalytic activities were evaluated by photodegradation of organic rhodamine B (RhB) and methyl orange (MO) under visible light irradiation. It was found that pure Ag2SO4 can partially transform into metallic Ag during the photocatalytic degradation of organic pollutants, but the Ag/Ag2SO4 hybrids can maintain its structure stability and show enhanced visible light photocatalytic activity because of the surface plasma resonance effect of the metallic Ag.
Vorheriger Artikel In situ surface-enhanced Raman spectroscopy effect in zeolite due to Ag2Se quantum dots
Nächster Artikel Preparation and property of magnetic photocatalyst BiOCl/Mn x Zn1−x Fe2O4

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Metadaten
Titel
Transformation from Ag@Ag3PO4 to Ag@Ag2SO4 hybrid at room temperature: preparation and its visible light photocatalytic activity
verfasst von
Ting Wei
Shanmin Gao
Qingyao Wang
Hui Xu
Zeyan Wang
Baibiao Huang
Ying Dai
Publikationsdatum
01.02.2017
Verlag
Springer Netherlands
Erschienen in
Journal of Nanoparticle Research / Ausgabe 2/2017
Print ISSN: 1388-0764
Elektronische ISSN: 1572-896X
DOI
https://doi.org/10.1007/s11051-016-3726-1

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