TY - JOUR ID - 6250 TI - Synthesis of ZnO Nanoparticles by Spray Pyrolysis Method JO - Iranian Journal of Chemistry and Chemical Engineering JA - IJCCE LA - en SN - 1021-9986 AU - Ghaffarian,, Hamid Reza AU - Saiedi, Mahboobeh AU - Sayyadnejad, Mohammad Ali AU - Rashidi, Ali Morad AD - Chemistry & Petrochemical Division, Research Institute of Petroleum Industry (RIPI), P.O. Box 14665-137 Tehran, I.R. IRAN AD - Gas Division, Research Institute of Petroleum Industry (RIPI), Tehran, I.R. IRAN Y1 - 2011 PY - 2011 VL - 30 IS - 1 SP - 1 EP - 6 KW - ZnO KW - Spray pyrolysis KW - nanoparticles KW - Specific surface area DO - 10.30492/ijcce.2011.6250 N2 - Zinc oxide (ZnO) nanoparticles were synthesized by spray pyrolysis method using an aqueous solution of zinc acetate at various concentrations from 5 to 25 wt%. The decomposition of precursor solutions was carried out at 800, 1000 and 1200ºC under different atomizing pressures. The crystal structure and morphology of synthesized nanoparticles were characterized by X-Ray Diffraction (XRD) spectrometry and Transmission Electron Microscopy (TEM), which indicated that ZnO nanoparticles were of hexagonal wurtzite structure. The XRD, TEM and BET analyses of prepared ZnO powders with concentrations of 5-20 wt% showed that the crystallite size diameter and specific surface area of particles were in the range of 10-25 nm and 44-56 m2/g, respectively.It was found that impurity and unreacted zinc acetate appeared in the product with increase of precursor solution concentration beyond 20wt%.   UR - https://ijcce.ac.ir/article_6250.html L1 - https://ijcce.ac.ir/article_6250_13190bc8fd6a1f92d3910c48131ae9b1.pdf ER -