La-doped TiO2 nano-catalysis material used for low-temperature plasma catalysis synergistic effect

Abstract

The invention discloses a La-doped TiO2 nano-catalysis material used for low-temperature plasma catalysis synergistic effect. The La-doped TiO2 nano-catalysis material is prepared by the following steps: slowly adding absolute ethyl alcohol into butyl titanate; stirring and then adding polyethylene glycol, and continuing to stir to obtain a solution A; sequentially adding lanthanum nitrate and nitric acid into a mixed solution of the absolute ethyl alcohol and de-ionized water and controlling the pH to be 2-3 to obtain a solution B; dripping the solution B into the solution A and stirring to obtain TiO2 sol; sealing the TiO2 sol for a certain period of time to prepare a film; taking a ceramic electrode material as a base for plating the film; after plating the film, drying in a drying oven; repeatedly carrying out film plating and drying operation for 5 times to obtain a ceramic electrode base coated film; putting the ceramic electrode base coated film into a box type furnace and preserving heat at 20 DEG C for 0.5 hour; and preserving heat at 450 DEG C for 0.5 hour to obtain the La-doped TiO2 nano-catalysis material. According to the La-doped TiO2 nano-catalysis material, a technological flow is simple and convenient, industrial production is convenient to realize and the catalytic effect is good; and the degradation rate on benzene is 86% and is improved by 30% compared with that of a pure ceramic electrode material.

Description

technical field [0001] The present invention relates to nanometer TiO 2 In the field of photocatalyst thin film manufacturing, it mainly involves TiO used in low-temperature plasma catalytic synergistic reactors 2 Manufacturing industry of photocatalytic thin film materials, specifically La doped TiO for low temperature plasma catalytic synergy 2 nanocatalytic materials. Background technique [0002] Low-temperature plasma and catalyst synergy technology is currently the frontier research field for air pollution treatment. It not only has the characteristics of convenience and efficiency of low-temperature plasma technology, but also has the characteristics of high precision and high efficiency of catalytic oxidation, so it has become a research hotspot. The core of this technology is to effectively combine the low-temperature plasma generator with the catalyst to exert a synergistic effect. Therefore, the preparation of a catalyst material that is effectively combined wit...

AI Technical Summary

Problems solved by technology

[0004] TiO 2 Although it has a good catalytic effect, it can only absorb light in the ultraviolet region due to its wide band gap, resulting in insufficient utilization of incident light, making TiO used in low-temperature plasma and catalytic synergy technology 2 The catalytic efficiency of thin film catalysts needs to be improved

Images