Controlled organization of ZnO building blocks into complex nanostructures
ZnO complex nanostructure with special mushroom-like morphology was prepared by hydrolysis of zinc acetate dehydrate (Zn(CH 3COO) 2⋅2H 2O) in water–methanol mixed solvent at 60 °C. The formation mechanism was studied using XRD investigation and FE-SEM observation, which showed that the mushroom-like...
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Published in | Journal of colloid and interface science Vol. 297; no. 2; pp. 570 - 577 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
San Diego, CA
Elsevier Inc
15.05.2006
Elsevier |
Subjects | |
Online Access | Get full text |
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Summary: | ZnO complex nanostructure with special mushroom-like morphology was prepared by hydrolysis of zinc acetate dehydrate (Zn(CH
3COO)
2⋅2H
2O) in water–methanol mixed solvent at 60 °C. The formation mechanism was studied using XRD investigation and FE-SEM observation, which showed that the mushroom-like particles were transformed from cauliflower-like layered basic zinc acetate (LBZA), Zn
5(OH)
8(CH
3COO)
2⋅2H
2O, and composed of ZnO subunits with average size less than 10 nm. The introduction of hexamethylenetetramine (HMTA, C
6H
12N
4) to the solution before deposition led to drastic changes in the morphologies of both aggregation particles and ZnO subunits. The novel ZnO microspheres, which were made of regular hexagonal plate-like ZnO with dimensional size
35
×
10
nm
, were formed. These hexagonal plate-like ZnO subunits stacked very compactly and aligned regularly. Kinetic study of this unique complex nanostructure using TEM and FE-SEM observation showed the presence of HMTA played an important role on the formation of hexagonal ZnO subunits through different mechanisms related to the different parts of microspheres.
A novel curved nanostructure that ZnO submicron spheres organized by the building blocks—hexagonal nanoplates |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0021-9797 1095-7103 |
DOI: | 10.1016/j.jcis.2005.10.059 |