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

A technology of titanium sol and sol, which is applied in the field of thulium-doped titanium sol and degradation of fabric organic dirt under visible light, can solve the problems of high-temperature calcination, and achieve the effect of simple preparation method, simple equipment and good process repeatability

Inactive Publication Date: 2010-05-12
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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-comp

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Add 4 mL of absolute ethanol and 8 mL of tetrabutyl titanate into the Erlenmeyer flask, and stir magnetically at room temperature to completely dissolve it to obtain solution B; take 23 mL of thulium trichloride solution with a concentration of 2 g / L and add it to 55 mL of distilled water, Use hydrochloric acid to adjust the pH value to about 3 to obtain solution A; add solution A dropwise to solution B under stirring, and continue to stir for 30 minutes to obtain a uniform and transparent sol A; then shake in a 40°C shaking water bath for 2 hours, then shake at room temperature placed under the hood and aged for 24 hours to obtain thulium-doped titanium sol. The molar ratio of thulium:titanium in the obtained thulium-doped titanium sol was 0.71%.

[0018] Soak the cotton fabric in deionized water at 60°C and heat it for 30 minutes, rinse it with distilled water after taking it out, and dry it at 60°C. Dilute the thulium-doped titanium sol with deionized water to a con...

Embodiment 2

[0020] Add 6mL of absolute ethanol and 12mL of tetrabutyl titanate into the Erlenmeyer flask, and stir it magnetically at room temperature to completely dissolve it to obtain solution B; take 34.5mL of thulium trichloride solution with a concentration of 2g / L and add it to 43.5mL of distilled water In the solution, adjust the pH value to about 2 with hydrochloric acid to obtain solution A; add solution A dropwise to solution B under stirring, and continue stirring for 10 minutes to obtain uniform and transparent sol A; then shake in a 50°C shaking water bath for 1 hour, Place and age at room temperature for 36 hours to obtain thulium-doped titanium sol. The molar ratio of thulium:titanium in the obtained thulium-doped titanium sol was 0.71%.

[0021] Immerse the cotton fabric in deionized water at 60°C and heat it for 30 minutes, take it out, rinse it with distilled water, and dry it at 60°C. Dilute the thulium-doped titanium sol with deionized water to a concentration of 5g / L...

Embodiment 3

[0023] Add 10mL of absolute ethanol and 20mL of tetrabutyl titanate into the Erlenmeyer flask, and magnetically stir at room temperature to completely dissolve it to obtain solution B; take 46mL of thulium trichloride solution with a concentration of 2g / L and add it to 55mL of distilled water, Use hydrochloric acid to adjust the pH value to about 1 to obtain solution A; add solution A dropwise to solution B under stirring, and continue to stir for 20 minutes to obtain a uniform and transparent sol A; then shake in a 30°C shaking water bath for 2 hours, then shake at room temperature placed under the hood and aged for 72 hours to obtain thulium-doped titanium sol. The molar ratio of thulium:titanium in the obtained thulium-doped titanium sol was 0.57%.

[0024] Soak the cotton fabric in deionized water at 60°C and heat it for 30 minutes, rinse it with distilled water after taking it out, and dry it at 60°C. Dilute the thulium-doped titanium sol with deionized water to a concen...

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PUM

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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 ...

Claims

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Application Information

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IPC IPC(8): B01J23/10B01J21/06B01J37/00D06M11/46D06M11/45
Inventor 王潮霞许梅顾钰良
Owner JIANGNAN UNIV
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