ZnO Nanoparticles Prepared by Thermal Decomposition of Batch Supercritical Antisolvent Processed Zinc Acetate

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Yuntao Song¹  Hui Liang¹  Yanzhao Yang¹ 

[1]School of Chemistry and Chemical Engineering, Shandong University

关键词: Nanostructures;    Oxides;    Crystal Growth;    X-Ray Diffraction;    Electron Microscopy;   

DOI  :  10.1252/jcej.08we072

来源: Maruzen Company Ltd

【 摘 要 】

References(28)ZnO wurtzite nanoparticles (crystallite sizes ca. 15 nm) were prepared via thermal decomposition of batch supercritical antisolvent (SAS) processed zinc acetate precursor. Batch SAS could produce nanoscale zinc acetate particles (average sizes ca. 35 nm) at 4°C and 15 MPa when choosing the optimum flow of the supercritical fluid. ZnO nanoparticles were formed by decomposing nanoparticles of zinc acetate at 150, 300 and 450°C, respectively. The Zinc acetate and ZnO nanoparticles were characterized based on TEM, FTIR spectroscopy and X-ray powder diffraction. TGA and FTIR spectra were used to the thermal decomposition course of the zinc acetate particles. ZnO nanoparticles were ultrapure and have no residual organic group. Calcination temperatures of zinc acetate particles have no significantly negative influence on the size of final ZnO particle. The ZnO crystalline agglomeration, particle size and size distribution are determined by the quality of the SAS processed precursors. The present work is helpful to develop a clean, size controllable nanoparticle preparation method.

【 授权许可】

Unknown