The Photocatalytic Performance of Ag-Decorated SiO2 Nanoparticles (NPs) and Binding Ability between Ag NPs and Modifiers

This study demonstrates a method for synthesizing Ag-decorated SiO2 NPs, which combined surface modification and electroless plating. The binding ability between the Ag NPs and modifiers was also investigated for the first time. The resulting products were characterized by electron microscopy and a...

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Bibliographic Details
Published in:Coatings (Basel) 2022-02, Vol.12 (2), p.146
Main Authors: Chen, Wei-Sheng, Chen, Hong-Ren, Lee, Cheng-Han
Format: Article
Language:English
Subjects:
Ammonia
Binding
Electroless plating
Ethanol
Fourier transforms
Methylene blue
Microscopy
Morphology
Nanoparticles
Particle size
Photocatalysis
Photodegradation
Silicon dioxide
Silver
Textile industry
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Summary:This study demonstrates a method for synthesizing Ag-decorated SiO2 NPs, which combined surface modification and electroless plating. The binding ability between the Ag NPs and modifiers was also investigated for the first time. The resulting products were characterized by electron microscopy and a UV–Visible spectrophotometer, which confirmed that OH− modified composite has the most uniform coating of Ag NPs and the largest Ag elemental composition. The efficiency of degrading methylene blue (MB) under visible light for 60 min was above 99%. The normalized reaction constant also confirmed the experimental results. In brief, this study verifies an optimal surface modifier of the binding ability with Ag NPs and the feasibility of this structure to effectively absorb the solar spectrum and further apply it to the photodegradation reaction.
ISSN:2079-6412
2079-6412
DOI:10.3390/coatings12020146