Black zirconium oxide pigment and preparation method of ceramic

The invention provides a preparation method of a black zirconium oxide pigment. The preparation method comprises the following steps: S1, preparing color former powder: mixing ferric nitrate nonahydrate and cobalt nitrate hexahydrate, heating for melting, and carrying out pyrolysis cooling to obtain a color former CFO powder; S2, coating layer preparing: dispersing and stirring the CFO powder, absolute ethyl alcohol and xylene; adding zirconium isopropoxide and stirring to obtain a first mixture; dropwise adding a solvent, which is a mixture of water and ethanol, into the first mixture under the conditions of heating, stirring and reflux condensation, and pyrolyzing an obtained second mixture to obtain black zirconium oxide pigment powder. The invention further provides a preparation method of black zirconium oxide ceramic, and a degreasing step S3 and a sintering step S4 are added on the basis of the method to obtain the black zirconium oxide ceramic. According to the black zirconia pigment and the preparati