Preparation method and application of bismuth-titanium-iron oxide chloride photocatalytic material

Abstract

The invention discloses a preparation method and application of a bismuth-titanium-iron oxide chloride photocatalytic material, and belongs to the technical field of photocatalytic material preparation processes. The preparation method comprises the following steps: adding bismuth nitrate pentahydrate into an ethylene glycol solution, dropwise adding distilled water containing potassium chloride into an obtained solution at the speed of 1-2 drops per second, stirring for 1 hour at room temperature, then centrifugally washing, and finally putting a cleaned sample into a drying oven for drying to obtain bismuth oxychloride nanosheets; mixing and grinding bismuth oxide, titanium dioxide, ferrous oxide and the bismuth oxychloride nanosheets according to a standard stoichiometric ratio, and calcining in a muffle furnace at 973-1173 K for 12 hours; and after the temperature is reduced to room temperature, taking out the calcined sample, and further grinding. The method has the advantages ofsimple process, easiness in operation, visible light response, low energy consumption and the like; the material has very strong pollutant degradation capacity under visible light, and has wide application prospects in the fields of pollutant treatment, photocatalytic oxygen production and the like.

Description

technical field

[0001] The invention belongs to the technical field of synthesis technology of photocatalytic materials, and in particular relates to a preparation method and application of a bismuth titanium iron oxychloride photocatalytic material. Background technique

[0002] With the development of human society, problems such as environmental pollution and energy shortage have also been brought. All countries in the world are committed to solving environmental pollution problems and developing new energy sources. The use of semiconductor photocatalysts can degrade organic pollutants; treat wastewater; purify air, etc. Therefore, photocatalytic degradation has become an important method to solve environmental pollution problems, and has the characteristics of low cost and environmental friendliness. TiO 2 It is a widely used material at present, but its wide band gap (~3.2 eV) makes it only respond to ultraviolet light (accounting for 5% of sunlight), but not to visi...

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