Hydrothermal Synthesis and Characterization of C@ZrSiO4 Black Pigment Based on Mesoporous Structure Collapse of Zirconium Silicate

Abstract

In this paper, Zirconium silicate inclusion carbon black (C@ZrSiO₄) pigment was prepared by mesoporous structure collapse of ZrSiO₄. The optimal synthesis process of C@ZrSiO₄ pigment was studied. The results show that mesoporous ZrSiO₄ with specific surface area of 322.4805 m²/g can be obtained at 180 ℃ hydrothermal temperature. APTES can facilitate the combination of carbon black (CB) and ZrSiO₄, and the optimal molar ratio of APTES/Zr is 0.5364. By utilizing the special structure of layered mesopores ZrSiO₄, we have successfully synthetized highly chromogenic C@ZrSiO₄ pigment with L* value of 27.65.