Then, by using the microspheres as the templates, the novel uniform ZnO/Co2O3-Bi2O3 core/shell compositeswere successfully synthesized via as situ precipitation–coating route due to the electrostatic interaction of [BiEDTA]− and [Co(NH3)6]3+
Then, by using the microspheres as the templates, the novel uniform ZnO/Co2O3-Bi2O3 core/shell compositeswere successfully synthesized via as situ precipitation–coating route due to the electrostatic interaction of [BiEDTA]− and [Co(NH3)6]3+