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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/6890

Title: Porosity and photocatalytic studies of transition metal doped ZnO nanoclusters
Authors: BARICK, KC
SINGH, S
ASLAM, M
BAHADUR, D
Keywords: porous zno
zinc-oxide
surface-area
sol-gel
mn
nanoparticles
nanocrystals
temperature
ferromagnetism
aggregation
Issue Date: 2010
Publisher: ELSEVIER SCIENCE BV
Citation: MICROPOROUS AND MESOPOROUS MATERIALS, 134(1-3), 195-202
Abstract: Highly mesoporous self-aggregated nanoclusters of pure and transition metal (Mn, Co and Ni) doped ZnO have been synthesized by refluxing their acetate precursors in diethylene glycol (DEG) medium It was found that the porous spherical nanoclusters comprised of numerous nanocrystals are fairly stable, well-defined and discrete with hexagonal wurtzite structure The transition metal ions, Mn, Ni and Co were successfully doped into the ZnO structure and are uniformly distributed in the samples The presence of pronounced hysteresis loop in N(2) adsorption-desorption isotherm curves indicates the 3D intersection network of the pores (predominantly mesoporous in nature) Transmission electron microscopy (TEM) analysis indicates that the pores are irregular in shape and randomly distributed throughout the nanocluster Furthermore, we have explored the photocatalytic activity of these mesoporus pure/doped ZnO nanoclusters using methylene blue as a model dye. It has been observed that these mesoporous ZnO could be a promising photocatalyst for degradation of organic molecules as compared to transition metal doped ZnO under UV light
URI: http://dx.doi.org/10.1016/j.micromeso.2010.05.026
http://dspace.library.iitb.ac.in/xmlui/handle/10054/6890
http://hdl.handle.net/10054/6890
ISSN: 1387-1811
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