Particle and Aerosol Research Vol. 6, No. 1, March 2010 |
ISSN : 1738-8716 (Print) ISSN : 2287-8130 (Online) |
Effects of transition metal-doping on the properties of ZnO nanoparticles and the photocatalytic degradation of methylene blue
ÀåÇѱÇ1), ¿À°æÁØ1),2), ÀåÈñµ¿1)*, Á¶±¹1), ±èµ¿Áø1), ÃÖÁøÈÆ2) 1)Çѱ¹ÁöÁúÀÚ¿ø¿¬±¸¿ø, »ê¾÷¿ø·áÈ¿¬±¸½Ç, 2)¼°´ëÇб³ È°ø»ý¸í°øÇаú (2010³â 2¿ù 17ÀÏ Åõ°í; 2010³â 3¿ù 15ÀÏ ¼öÁ¤; 2010³â 3¿ù 17ÀÏ °ÔÀçÈ®Á¤)
Abstracts
Transition metals such as V, Fe, and Ni were used to synthesize doped zinc oxide nanoparticles from mixed liquid
precursors by using the flame spray pyrolysis (FSP). The effects of dopants on the powder properties such as
morphology, specific surface area, crystal structure, and light adsorption were analyzed by TEM, BET, XRD, and
UV-Vis diffuse reflection spectrum (DRS), respectively. The results showed that hexagonal wurtzite structured ZnO:M
(M = V, Fe, Ni) nanoparticles were successfully synthesized by the FSP. The transition metal-doping resulted in the
decrease in its particle size and crystallite size. The UV-vis absorption spectra of ZnO:M nanoparticles were also
red-shifted. ZnO:V showed the highest MB degradation of 99.4% under the UV irradiation after 3 hrs.
Keywords£ºZinc oxide, Transition metal-doping, Flame spray pyrolysis, Methylene blue, Photocatalysis
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