“…To date, many methods have been developed to prepare Co 1−x Zn x Fe 2 O 4 nanoparticles, such as the co-precipitation method [8,10,11], the usual ceramic technique [12], the forced hydrolysis method [13], the standard solid-state reaction technique [9], the microwave-hydrothermal method [14], and the PEGassisted hydrothermal method [15]. However, research on the self-assembled Co 1−x Zn x Fe 2 O 4 nanoparticles is comparatively limited, so attention was focused on developing a new method of preparing Co 1−x Zn x Fe 2 O 4 nanoparticles and studying the properties of the as-prepared nanoparticles.…”