Microwave-assisted solution synthesis and photocatalytic activity of Ag nanoparticles supported on ZnO nanostructure flowers |
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| Authors: | Anukorn Phuruangrat Nicha Wongwiwat Titipun Thongtem Somchai Thongtem |
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| Institution: | 1.Department of Materials Science and Technology, Faculty of Science,Prince of Songkla University,Hat Yai,Thailand;2.Materials Science Research Center, Faculty of Science,Chiang Mai University,Chiang Mai,Thailand;3.Department of Chemistry, Faculty of Science,Chiang Mai University,Chiang Mai,Thailand;4.Department of Physics and Materials Science, Faculty of Science,Chiang Mai University,Chiang Mai,Thailand |
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| Abstract: | Ag nanoparticles supported on the surface of three-dimensional (3D) flower-like ZnO nanostructure were synthesized by a microwave-assisted solution method. The obtained products were characterized by X-ray diffraction analysis, field-emission scanning electron microscopy, Fourier-transform infrared spectroscopy, Raman spectrophotometry, X-ray photoelectron spectroscopy, and photoluminescence spectroscopy. The analytical results confirmed homogeneously distributed Ag nanoparticles supported on the surface of flower-like ZnO nanostructure. The photocatalytic effect of the heterostructure Ag/ZnO nanocomposites was investigated using photodegradation under ultraviolet (UV) light of methylene blue as model dye. The heterostructure Ag/ZnO nanocomposites exhibited much higher photocatalytic activity than pure ZnO flowers. The improved photocatalytic properties are attributed to formation of a Schottky barrier at the metal–semiconductor interface of the Ag/ZnO nanocomposites. |
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