Thulium doped titanium sol and method for degrading textile organic dirt under visible light

Abstract

The invention relates to a thulium doped titanium sol and a method for degrading textile organic dirt under visible light, wherein the method comprises the following steps of: doping lanthanide thulium by using tetrabutyl titanate as a precursor and adopting a sol-gel method to prepare the thulium doped titanium sol, shaking the thulium doped titanium sol in a shaking bath pot for a certain period of time, placing at room temperature and ageing; enabling the sol to be adsorbed onto fibers by adopting an immersion method, drying and baking to enable the thulium doped titanium sol to form a film on the surface of textile fibers. The thulium doped titanium dioxide sol has simple preparation method, low-temperature operation and visible light response; the consolidated textile can decompose the organic dirt covered on the consolidated textile under the visible light, and the degradation ratio can reach more than 90 percent.

Description

technical field [0001] The invention belongs to the technical field of textile chemical industry, and in particular relates to a method for degrading fabric organic dirt by thulium-doped titanium sol and visible light. Background technique [0002] In textile cleaning technology, detergent is generally used to remove dirt, but at the same time it consumes a lot of water resources and brings a series of chemical pollution, which does not meet the requirements of energy conservation and environmental protection. Self-cleaning materials based on photocatalytic technology are characterized by their high photocatalytic degradation activity for organic pollutants and deep mineralization into inorganic small molecule terminal products. Photocatalytic materials are used to finish textiles. By absorbing light sources, organic pollutants can be treated A novel way of cleaning textiles is proposed. [0003] TiO 2 Photocatalytic technology began in 1972. Its degradation of pollutants ...

AI Technical Summary

Problems solved by technology

Patent No. ZL 200510011916.8 provides a method for sol-gel low-temperature combustion to synthesize metal ion and nitrogen co-doped titanium dioxide photocatalysts. The prepared photocatalyst has excellent photocatalytic activity under light with a wavelength less than or equal to 600nm; Patent No. ZL 200510083038.0 Invented a titanium dioxide as the main body loaded on a variety of carriers, doped with one or more of tin, iron, zinc, cerium, molybdenum, silver, manganese, tungsten, silicon, vanadium, zirconium, aluminum, copper Elementary, the preparation technology of binary or multi-component carrier-type nanocomposite photocatalysts that can effectively degrade organic matter under sunlight irradiation, including co-precipitation combined with sol-gel combined with supercritical fluid drying combination technology and impregnation two preparation methods; patent No. ZL200610015209.0 discloses a preparation method of highly active nitrogen-doped nano-titanium dioxide catalyst in the visible light region. Compared with traditional titanium dioxide powder, it has excellent absorption in the visible light region, but its preparation process requires high-temperature calcination