Web Release Date: October 26,
Fabrication of Two-Dimensional ZnO Nanostructures from Nanoparticles
State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, People's Republic of China
Received: July 3, 2007
In Final Form: September 12, 2007
Abstract:
Two-dimensional ZnO nanostructures have been prepared with nanoparticles as building blocks either by a solvothermal method or a liquid transport process at room temperature. ZnO nanoparticles can agglomerate into particulate nanosheets with area size in the micrometer range by directly heating in n-hexane. A stack of ultrathin ZnO particulate nanosheets can be obtained via two-dimensional aggregation of nanoparticles when the vapor-liquid-solid interface acts as a template at room temperature. The products are characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, high-resolution transmission electron microscopy, nitrogen adsorption isotherm, and photoluminescence spectroscopy. The formation mechanism of ZnO nanostructures is discussed.
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