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Facile Synthesis of ZnO Nanoparticles and Their Photocatalytic Activity
- Facile Synthesis of ZnO Nanoparticles and Their Photocatalytic Activity
- Lee, Soo-Keun; Kim, A. Young; Lee, Jun Young; Ko, Sung Hyun; Kim, Sang Wook
- DGIST Authors
- Lee, Soo-Keun
- Issue Date
- Bulletin of the Korean Chemical Society, 35(7), 2004-2008
- Article Type
- Adsorption; Adsorption Desorption; Aromatic Compounds; Brunauer-Emmett-Teller Surface Areas; Desorption; Metal Nanoparticles; Methylene Blue Degradation; Methylene Blue Degradations; Nanoparticle Synthesis; Nanosphere; Nanospheres; Particle Size and Morphologies; PEG Concentration; Photo-Catalytic Activities; Photo-Catalytic Activity; Photocatalysis; Scanning Electron Microscopy; Scanning Electrons; Synthesis (Chemical); Transmission Electron Microscopy; X Ray Diffraction; Zinc Oxide
- This paper reports the facile synthesis methods of zinc oxide (ZnO) nanoparticles, Z1-Z10, using diethylene glycol (DEG) and polyethylene glycol (PEG400). The particle size and morphology were correlated with the PEG concentration and reaction time. With 0.75 mL of PEG400 in 150 mL of DEG and a 20 h reaction time, the ZnO nanoparticles began to disperse from a collective spherical grain shape. The ZnO nanoparticles were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy and a N2 adsorption-desorption studies. The Brunauer-Emmett-Teller (BET) surface areas of Z4, Z5 and Z10 were 157.083, 141.559 and 233.249 m2/g, respectively. The observed pore diameters of Z4, Z5 and Z10 were 63.4, 42.0 and 134.0 A, respectively. The pore volumes of Z4, Z5 and Z10 were 0.249, 0.148 and 0.781 cm3/g, respectively. The photocatalytic activity of the synthesized ZnO nanoparticles was evaluated by methylene blue (MB) degradation, and the activity showed a good correlation with the N2 adsorption-desorption data.
- Korean Chemical Society
- Related Researcher
Nano material, photocatalyst, TiO2, ZnO
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