“…Considering the growing demand for Au-metal oxide-based nanocomposites for industrial and biomedical applications (Chen D. et al, 2015;Chen et al, 2017;Liu et al, 2018;Zhou et al, 2018;Gao et al, 2019;Jia et al, 2019;Zhang M. et al, 2019), there is a critical need to design a more facile and well-regulated synthetic route. Synthesis of metal-based nanocomposites by organic solvent-free conditions has drawn a lot of attention in the current decade (Li et al, 2013;Yao et al, 2013;Zhang et al, 2016;Qi et al, 2019;Ritchie et al, 2019). Au-ZnO nanocomposites, which are well known for a variety of applications, have been synthesized at high temperature in the presence of organic solvent (Yao et al, 2011;Tahir et al, 2013;Hang et al, 2016;Chang et al, 2017;Lupan et al, 2019).…”