سال انتشار: ۱۳۸۸

محل انتشار: سومین کنفرانس نانوساختارها

تعداد صفحات: ۴

نویسنده(ها):

Mohammad Ali Karimi – Department of Chemistry & Nanoscience and Nanotechnology Research Laboratory (NNRL),Faculty of Science, Payame Noor University (PNU), Sirjan, Iran
Reza Asadiniya – Department of Chemistry & Nanoscience and Nanotechnology Research Laboratory (NNRL),Faculty of Science, Payame Noor University (PNU), Sirjan, Iran
Saeed Haghdar Roozbahani – KaraChem Manufacturing Co., Nano Products Industrial
Mahdiyeh Zeydabadi – Department of Chemistry, Faculty of Science, Payame Noor University (PNU), Kerman, Iran

چکیده:

We report here the synthesis of nanoparticles of ZnO and MgO and ZnO/MgO nanocomposite through reactions of zinc acetate and magnesium acetate solutions with tetramethylammonium hydroxide TMAH solution in the presence of polyvinyl pyrrolidone (PVP) by sonochemical method. At first, nanoparticles of ZnO and MgO weresynthesized by the reaction of Zn( CHCOO3)2 with TMAH in the presence of PVP and constant frequency ultrasonic waves. Then, ZnO/MgO nanocomposite was prepared through reaction of magnesium acetate with TMAH in the presence of ZnO nanoparticles and PVP as structure director using ultrasonic-assisted method. The effects of different parameters on particle size and morphology offinal ZnO and MgO powders and ZnO/MgO nanocomposite were optimized by ‘‘one at a time’’ method. Under optimum conditions, spongy shaped, uniformed and homogeneous nanostructured zinc oxide and magnesium oxide powders were obtained with particle sizes of 25-50 and30-60 nm, respectively. ZnO/MgO nanocomposite was also obtained with more spongy morphology and particle size about 65 nm.