Rare earth Tb doped bismuth vanadate photocatalyst and preparation method thereof

• Main Authors: LIU JINGJING, ZHANG ZELAN, ZHAO WEI
• Format: Patent
• Language: Chinese; English
• Published: 11.12.2020
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention discloses a rare earth Tb doped bismuth vanadate photocatalyst and a preparation method thereof. The preparation method comprises the following steps: dissolving bismuth nitrate pentahydrate in a nitric acid solution to obtain a solution A; dissolving ammonium metavanadate into a sodium hydroxide solution to obtain a solution B; slowly dropwise adding the solution A into the solutionB, and uniformly performing stirring to obtain a bismuth vanadate suspension; dropwise adding the terbium chloride solution into the bismuth vanadate suspension to obtain terbium-doped bismuth vanadate suspension, continuously performing stirring, adjusting the pH value to 6 by using a sodium hydroxide solution, carrying out water bath at 80-90 DEG C for at least 1h, performing cooling, carryingout suction filtration to obtain a precipitate, drying, performing calcining at 480-520 DEG C for at least 4h, performing cooling, and grinding theprecipitate into powder to obtain the rare earth Tb-doped bismuth vanadate phot