Molybdenum trioxide nanotube material with peculiar photocatalytic memory effect as well as preparation method and photocatalytic application thereof

Abstract

The invention discloses a molybdenum trioxide nanotube material with a peculiar photocatalytic memory effect as well as a preparation method and photocatalytic application of the molybdenum trioxide nanotube material, and belongs to the technical fields of photocatalytic materials, solar energy utilization and environmental protection. The molybdenum trioxide nanotube material has a three-dimensional structure, and is obtained by reacting ammonium heptamolybdate with nitric acid and adding polyvinylpyrrolidone to modify the surface. The prepared molybdenum trioxide shows the characteristics of a wide bandgap semiconductor photocatalytic material and has a peculiar photocatalytic memory effect, that is, the molybdenum trioxide can still continuously show a color change phenomenon and has super-strong optical performance and catalytic degradation performance after being illuminated for a certain time; the photocatalytic adsorption and degradation of dye and antibiotic pollutants in water are realized, and the mineralization rate of tetracycline antibiotics even can reach nearly 100%.

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