Synthesis and Characterization of CeO2–ZrO2–Bi2O3 Solid Solutions for Environment-friendly Yellow Pigments

Abstract

Abstract CeO2–ZrO2–Bi2O3 solid solutions have been synthesized by a citrate complex route. The resulting colored materials have been characterized as potential environment-friendly pigments. The yellow hue of the pigment was significantly enhanced by the introduction of zirconium and bismuth into the CeO2 lattice, which produces intrinsic strain and a hybrid orbital of Bi6s and O2p, respectively. The yellow pigments obtained have been found to be effective alternatives to the conventional toxic colored materials.