The invention relates to a method for synthetizing carbon-doped monoclinic phase mesoporous
bismuth vanadate. The method comprises the steps of mixing silica
aerogel microspheres, glucose and water according to the
mass fraction ratio of 1 to (0.02-0.2) to (20-200),
drying to obtain a compound as a template; taking
nitric acid,
ethanol and
bismuth nitrate according to the
mass fraction ratio of 1 to 15 to 0.5, and carrying out ultrasonic treatment to obtain
bismuth nitrate solution; taking
nitric acid,
ethanol and
ammonium metavanadate according to the
mass fraction ratio of 1 to 15 to 0.125, and carrying out ultrasonic treatment to obtain
ammonium metavanadate solution; slowly dripping the
ammonium metavanadate solution into the
bismuth nitrate solution to obtain a
mixed solution; adding the template to the
mixed solution, vacuuming to fully inject the
mixed solution into the template, and reacting for 6-24 hours at 60-110 DEG C to obtain a
solid product; heating the
solid product to 200-600 DEG C at the heating speed of 0.5-10 DEG C.min<-1> in a
tube furnace under the protection of
nitrogen, and keeping constant temperature for 0.5-5 hours; and naturally cooling to
room temperature and then removing the silica
aerogel microspheres by
sodium hydroxide solution to obtain carbon-doped monoclinic phase mesoporous
bismuth vanadate. Carbon-doped monoclinic phase mesoporous
bismuth vanadate disclosed by the invention has good photocatalytic performance within the range of a visible light.