Preparation method of rare earth doping photolysis catalyst

Abstract

The invention discloses a preparation method of a rare earth doping photolysis catalyst. The method comprises the following steps of stirring and mixing tetrabutyl titanate and water until white foamfloccules occur; then, performing ultrasonic dispersion; performing heating reaction at the temperature of 70 to 90 DEG C; then, performing drying; under the stirring condition, slowly adding the samevolume of nitric acid rare earth solution; performing uniform stirring; then, performing ultrasonic dispersion; next, putting the materials at 70 to 90 DEG C for moisture evaporation; performing drying in a drying oven; performing roasting in a muffle furnace at 490 to 510 DEG C; obtaining the white powdery rare earth / TiO2 photocatalyst. The preparation process of the method is simple; the cost is low; TiO2 is doped into rare earth, the photolysis activity of the rare earth doping catalyst can be favorably improved, so that the absorption rate on the sunlight can be improved; the degradationrate is improved.

Description

technical field [0001] The invention relates to a preparation method of a catalyst, in particular to a synthesis method of a rare earth-doped photodegradation catalyst. Background technique [0002] In 1972, the famous chemist Fujishima described the "Honda Fujishima effect" for the first time, and published about TiO 2 The discussion of heterogeneous photocatalysis on the photolysis of water on the electrode is a new leap in the era of heterogeneous photocatalysis. With the continuous development of the global economy, people's demand for industry has increased, leading to serious environmental pollution and damage to the natural environment. The wastewater discharged from industrial production has caused the water to become smelly and deteriorated. The organic pollutants discharged contain harmful substances. Aquatic organisms have toxic by-products, which have a serious impact on people's daily life. Production is not concentrated and the reaction system is not complet...