Supersaturation Control Growth of Nanoparticle Zinc oxide and Size Distribution Control
Nanoparticle zinc oxide was synthesized in non-aqueous medium. UV adsorption spectra were measured and effective mass model was used to calculate particle size in situ. A technique method named as supersaturation control growth was developed, which dealt with addition of nanoparticle suspension with small size to another suspension with big size. As a result, those small particles completely dissolved and those big ones totally grew because of dissolution degree difference between small particles and the big ones. The particle number of big particle suspension kept being a constant and the growth rate was much higher than Ostwald ripening. Main characteristic of this technique is that size distribution of nanoparticles can be narrowed provided original size difference of two suspension is big enough and original size distribution is not too broad. Supersaturation control growth can be used to prepare mono-dispersion nanoparticles.
zinc oxide nanoparticle distribution growth kinetics adsorption edge band gap
傅敏 胡泽善 汤敏 魏小平 邵明浩 李岚华 DENG Yu-Lin
重庆工商大学,环境与生物工程学院,重庆市南岸区学府路19号,400067 School of Chemical and Biomolecular Engineering,IPST@GT,Georgia Institute of Technology,500 10th Str
国际会议
成都
英文
2007-11-19（万方平台首次上网日期，不代表论文的发表时间）