The invention discloses a
solid carbon base keggin type phosphomolybdic
heteropoly acid catalyst and application thereof. The preparation steps are as follows: a carbon porous material and a carboxylfunctional group
coupling agent are added into a
dilute acid solution with the pH being 3-4, magnetic stirring is conducted at the
room temperature for 12-24 h, Keggin type phosphomolybdic heteropolyacid, an inorganic
metal salt and a surfactant are added,
ultrasonic vibration is conducted for 0.5-1 h, a mixture is transferred into a hydrothermal reactor, a temperature
programming dryer is used,the
reaction temperature is raised from the
room temperature to 150-180 DEG C in 0.5-1 h, the temperature is maintained for 48-72 h, and then decreased to the
room temperature naturally, washing withultrapure water and
ethanol for multiple times is conducted,
filtration is conducted, and
drying is conducted for 10-12 h. The
solid carbon base keggin type phosphomolybdic
heteropoly acid catalyst can efficiently catalyze
hydrogen peroxide to oxidize
iodine ions to form an
iodine simple substance under heterogeneous conditions,
reaction conditions are mild, the
hydrogen peroxide utilization rateis high, environmental friendliness, no
pollution and no peroxidation are achieved,
thermal stability is good, and the catalyst can be reused for multiple times, and is easy to recycle.