Synthesis of Zinc (II) Oxide Wurtzite Nano Crystals Via Zn (II) Minoxidil Nanocomposite As a New Precoursur

Ranjbar, M.; Mahmoudi Najafi, S. H.; Shahsavan, N.; Yousefi, M.

Synthesis of Zinc (II) Oxide Wurtzite Nano Crystals Via Zn (II) Minoxidil Nanocomposite As a New Precoursur

Document Type : Research Paper

Authors

M. Ranjbar ¹

S. H. Mahmoudi Najafi ¹

N. Shahsavan ²

M. Yousefi ²

¹ Department of Chemical Technologies, Iranian Research Organization for Science and Technology, Tehran, I. R. Iran

² Department of Chemistry, Shahr-e Rey Branch, Islamic Azad University, Tehran, I. R. Iran

Abstract

The study describes the synthesis and characterization of zinc(II) minoxidil nanocomposite (1). The reaction between zinc(II) acetate, minoxidil, {C9H15N5O=minoxidil=(2,4-diamino-6-piperidine-1-yl) pyrimidine N-oxide)} as a ligand and KI as bridging agent, in methanol at 60°C leads to the formation of nano-sized Zn(II) minoxidil nanocomposite, 1. Characterization of (1) was carried out by elemental analysis, FTIR, scanning electron microscopy (SEM), energy dispersive x-ray analysis (EDAX), and gel-permeation chromatography analysis (GPC). The result showed that nanocomposite (1) has polymeric structure with spherical morphology and particle size of about 77 nm. Wurtzite (hexagonal) nanocrystals of zinc oxide were prepared from decomposition of the coordination polymer (1) at 400°C. Characterization of zinc oxide nanocrystals was performed by FTIR spectroscopy, scanning electron microscopy (SEM), EDAX and X-ray powder diffraction XRD. The results showed that the product has spherical morphology with particle size of about 34 nm.

Keywords

minoxidil

Zinc oxide

Nanocrystals

thermal gradient method