Hydrothermal Synthesis of Zinc Oxide Nanopowders
|Tomasz Strachowski 1,2, Tadeusz Chudoba 1, Edward Reszke 3, Witold Łojkowski 1|
1. Polish Academy of Sciences, Institute of High Pressure Physics (UNIPRESS), Sokolowska 29/37, Warszawa 01-142, Poland
In this paper are presented results of investigation on the influence of hydrothermal synthesis of nano – zinc oxide on their morphology and properties. First step of the study it was synthesis of nano zinc oxide by hydrothermal method using five methods of heating. There was used the ERTEC reactor in the following conditions: • as reactor with microwaves emission (1) • without microwave emission after reactor head preparation for using the electrical immersion heater(2) • without microwave emission after reactor head preparation for using the volume heater, Joule’s type (3) • reactor where high energy electrical impulses where used to initialize process (4) • reactor –autoclave CORETEST with teflon filling were used (5) Results of performed experiments give possibility to observed that in this same conditions of temperature and pressure, pure phases of nano –zinc oxide was synthesized in autoclave CORETEST and microwave reactor ERTEC. In reactor ERTEC the shortest time of process was needed. That is the reason why all other synthesis with metal ions were performed in ERTEC reactor, microwaves shortened greatly the time of synthesis. In each reactor for synthesis were placed aqua- solution zinc salts with metal ions. The characterization of nano-powders were examined including: morphology, grain size distributions, specific surface area (BET), crystal size (XRD), true density and chemical contest.
Presentation: Poster at Warsaw and Karlsruhe Nanotechnology Day, by Tomasz Strachowski
See On-line Journal of Warsaw and Karlsruhe Nanotechnology Day
Submitted: 2011-09-09 12:24 Revised: 2011-09-09 12:30