Effect of leavening agent on structural and photocatalytic properties of ZnO nanorods
| Autor: | N. L. Gavade, K. M. Garadkar, Santosh B. Babar, V. M. Bhuse, Jaehong Park |
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| Rok vydání: | 2017 |
| Předmět: |
Nanocomposite
Materials science Nanotechnology 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Atomic and Molecular Physics and Optics Silver nanoparticle 0104 chemical sciences Electronic Optical and Magnetic Materials law.invention Field emission microscopy chemistry.chemical_compound chemistry Chemical engineering law Methyl orange Photocatalysis Nanorod Calcination Electrical and Electronic Engineering 0210 nano-technology Photodegradation |
| Zdroj: | Journal of Materials Science: Materials in Electronics. 28:8372-8381 |
| ISSN: | 1573-482X 0957-4522 |
| DOI: | 10.1007/s10854-017-6554-x |
| Popis: | In the present work, we have demonstrated a simple, facile, one-step, rapid and cost effective synthesis of ZnO nanorods through the thermal decomposition of zinc acetate and leavening agent (NaHCO3). The silver nanoparticles (AgNPs) were deposited on the surface of ZnO nanorods by photocatalytic reduction of Ag (I) to Ag(0). As synthesized ZnO nanorods and Ag–ZnO nanocomposites were characterized by using X-ray Diffraction, field emission scanning electron microscope, high-resolution transmission electron microscope and diffuse reflectance spectroscopy. The photocatalytic activities of the ZnO nanorods and Ag–ZnO nanocomposites were evaluated for the photodegradation of Methyl Orange (MO) under UV and sunlight irradiation. The use of common leavening agent helps to prevent the aggregation of ZnO nanorods, further it hinders crystallite growth and narrowing the diameter of nanorods by the evolution of carbon dioxide during calcination. The ZnO nanorods and Ag–ZnO nanocomposite exhibited an enhanced photocatalytic activity and separation of photogenerated electron and hole pairs. Due to effect of leavening agent and AgNPs deposited on surface of ZnO nanorods finds best catalyst for the 99% degradation of MO within 30 min compared to ZnO. |
| Databáze: | OpenAIRE |
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