Photocatalytic catalysts that operate under ultraviolet and fluorescent light.

Abstract

------05 / 06 / 2569------(OCR)OCR09WP The invention of a titanium dioxide, zirconium, and silver compound according to the method disclosed in this invention yields solutions and particles of titanium dioxide, zirconium, and silver that are photocatalytically capable of breaking down organic matter and inhibiting microorganisms under both ultraviolet and fluorescent light, and which can be applied in a variety of industrial applications as well as environmental pollution treatment.

Claims

------05 / 06 / 2569------(OCR)OCR09WP1. The preparation procedure for a photocatalyst operating under ultraviolet and fluorescent light consists of the following steps: a. Dissolve 0.5-1 mol of titanium butoxide (50-98% purity) in 9-18 mol of ethanol solution (50-98% w / v purity) under continuous stirring. b. Add 0.25-0.5 mol of acetylacetone solution (50-98% purity), 1-2 mol of water, and 0.1-0.2 mol of nitric acid (50-98% w / v purity) to the solution from step a. a. Stir continuously until the titanium butoxide is completely dissolved to obtain a titanium solution. c. Add 0.8-0.15 mol of zirconium acetyl acetonate particles (50-98% w / w purity) to the titanium solution prepared in step b. Stir until the zirconium acetyl acetonate particles are completely dissolved. d. Add 0.5-0.1 mol of silver nitrate powder (50-98% w / w purity) to the solution prepared in step c. Stir until the silver nitrate powder is completely dissolved and forms a sol-gel consistency. e. Take the solution prepared in step d.The material is evaporated at room temperature until dry, then baked at 50-80 degrees Celsius for 6-12 hours, and finally fired in a kiln at 400-600 degrees Celsius for 4-6 hours. The resulting product is a gray powder containing titanium dioxide, zirconium, and silver.