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Novel and efficient synthesis of Ag-ZnO nanoparticles for the sunlight-induced photocatalytic degradation
- Source :
- Applied Surface Science. 476:632-640
- Publication Year :
- 2019
- Publisher :
- Elsevier BV, 2019.
-
Abstract
- Plasmonic metal-semiconductor nanostructures endow them with an enormous potential application in photocatalysis, however, the uniform deposition of metal NPs as small as a few nanometers remains a challenge. Here, we demonstrate the effectiveness of two-step polymer-network gel process in the synthesis of Ag-ZnO nanocatalyst with superior photocatalytic properties. Because of uniform distributed Ag NPs, large specific surface area and abundant surface oxygen vacancies, the Ag-ZnO nanoparticles exhibit a super high photocatalytic efficiency in comparison to pure ZnO nanoparticles. The efficiency can be further improved by optimizing the external factors, such as catalyst dosage, ambient temperature and initial solution pH. Good stability and practicability indicate its potential application in environmental purification. Our work does not only provide a feasible strategy for the synthesis of high property Ag-ZnO nanophotocatalysts, but also enriches the understanding of metal-metal oxide nanostructures.
- Subjects :
- Nanostructure
Materials science
Oxide
General Physics and Astronomy
Nanoparticle
Nanotechnology
02 engineering and technology
Surfaces and Interfaces
General Chemistry
010402 general chemistry
021001 nanoscience & nanotechnology
Condensed Matter Physics
01 natural sciences
0104 chemical sciences
Surfaces, Coatings and Films
Catalysis
chemistry.chemical_compound
chemistry
Specific surface area
Photocatalysis
Nanometre
0210 nano-technology
Plasmon
Subjects
Details
- ISSN :
- 01694332
- Volume :
- 476
- Database :
- OpenAIRE
- Journal :
- Applied Surface Science
- Accession number :
- edsair.doi...........f374383e907ff3899236f73bd7ce6610