Preparation Method for Iron-doped Tungsten Trioxide Photoelectrode

The invention discloses a preparation method for an iron-doped tungsten trioxide photoelectrode.

The preparation method comprises the following steps: firstly, preparing an amorphous tungsten oxide film: feeding an ITO (Indium Tin Oxide) conductive glass as a work electrode, a platinum gauze electrode as a counter electrode and a saturated calomel electrode as a reference electrode into electrolyte for electrodeposition to obtain the amorphous tungsten oxide film and drying the amorphous tungsten oxide film for later use; secondly, doping iron by using an impregnating method: feeding the amorphous tungsten oxide film obtained in the first step into 0.005mol/L Fe(NO3)3 solution and impregnating for 20-40 minutes to obtain an iron-doped tungsten oxide film, taking out the iron-doped tungsten oxide film and flushing the iron-doped tungsten oxide film with distilled water and drying the iron-doped tungsten oxide film in air; and thirdly, calcining: feeding the iron-doped tungsten trioxide photoelectrode in the second step into a muffle furnace, calcining the iron-doped tungsten trioxide photoelectrode at high temperature of 450DEG C for 3 hours, cooling the calcined iron-doped tungsten trioxide film at room temperature and then taking out to obtain the iron-doped tungsten trioxide photoelectrode.

The photoelectric conversion efficiency and the photoelectric catalytic activity of the iron-doped tungsten trioxide photoelectrode are remarkably improved; the adopted experiment equipment is simple and easy to operate; and the used raw materials are abundant in natural word and low in cost and also have the advantages of environment friendliness and the like.


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