Porous yellow tungsten oxide photocatalyst is a hotspot in researches of photocatalyst. Researchers proposed a method for preparing a porous structure yellow tungsten oxide photocatalyst. The process is simple, the raw materials are cheap and easily available, and the cost is low; the morphology of the product can be controlled by controlling the feeding ratio of glucose and ammonium tungstate, calcination temperature and time.
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Preparation of Porous Yellow Tungsten Oxide Photocatalyst
Step One: Weigh 2g glucose and add into 80mL of distilled water, stir to fully dissolve, then transfer to a 100mL polytetrafluoroethylene reactor, hydrothermal reaction at 180 °C for 12h, centrifuging, washing, drying at 80 °C and grinding to obtain brown powder product colloidal carbon microspheres.
Step Two: Weigh 0.2g of carbon microsphere powder into 60mL distilled water, and make it fully dispersed by ultrasound; add 200mL of ammonium tungstate solution (0.1248 mol/L) to it, after ultrasonication for 40min, continue stirring for 24h to obtain a mixed solution; then evaporate the mixed solution to dryness with stirring at 80 °C, grinding, and then calcining in a muffle furnace at 550 °C for 4h to obtain a porous structure yellow tungsten oxide photocatalyst.
