Surfactant-less Sol-Gel Technique for the Synthesis of Mg-ZnO Nanoparticle Wafaa A. Kadhim and Mohd Hasbi Bin Ab. Rahim MATEC Web Conf., 111 (2017) 02006 Published online: 20 June 2017 DOI: 10.1051/matecconf/201711102006