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Method for loading nanometer titanium dioxide on plant cellulose and application

A technology of nano-titanium dioxide and plant cellulose, which is applied in the field of titanium dioxide, can solve problems such as uneven distribution of titanium dioxide, long time, and product performance degradation, and achieve low cost, simple production process, and good uniform dispersion.

Inactive Publication Date: 2015-12-09
CHANGZHOU OPTICAL MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem mainly solved by the present invention: in view of the current titanium dioxide products, which are generally loaded with titanium dioxide by the method of doping, which will lead to uneven distribution of titanium dioxide and obvious decline in product performance over a long period of time, a plant fiber is provided. The method and application of the element-loaded nano titanium dioxide, the present invention firstly cultivates ramie, which is rich in titanic acid in the branches and leaves of ramie, and then undergoes enzymatic hydrolysis and acidification to make the ramie c

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0018] First, plant ramie on a land of 5m×5m. In the initial stage of ramie growth, spray 100mg / L butyl titanate evenly on the leaves of ramie, and then water tap water 4 hours after spraying. Spray and water alternately for 15 days, and then change to Spray with 200mg / L butyl titanate, and then pour the carbon tetrachloride solution 4 hours after spraying, continuously alternately spray and water for 10 days, and finally spray with 300mg / L butyl titanate solution, and then use it after 4 hours Irrigate with propanol, continuously alternately spray and water for 8 days, so that the cultivated ramie contains titanic acid; pick 3 kg of the above-mentioned cultivated ramie, clean it with water, put it into the reaction tank, and add 3% cellulose of the total mass to the tank Enzyme, enzymatic hydrolysis for 3 hours, after enzymolysis, add 35% concentrated hydrochloric acid to the pool for acidification until the pH reaches 2, and filter after standing for 30 minutes to obtain a mu...

example 2

[0021]First, plant ramie on a land of 5m×5m. In the initial stage of ramie growth, spray 100mg / L butyl titanate evenly on the leaves of ramie, and then water tap water 6 hours after spraying. Spray and water alternately for 17 days, and then change to water Spray with 200mg / L butyl titanate, and then pour the carbon tetrachloride solution 6 hours after spraying, continuously alternately spray and water for 12 days, and finally spray with 300mg / L butyl titanate solution, and then use it after 6 hours Irrigate with propanol, continuously alternately spray and water for 9 days, so that the cultivated ramie contains titanic acid; pick 3.5kg of the above-mentioned cultivated ramie, wash it with water, put it into the reaction tank, and add 3.5% of the total mass of fiber to the tank. Sulfase, enzymolysis for 3.5h, after enzymolysis, add concentrated hydrochloric acid with a mass fraction of 37% to the pool for acidification until the pH reaches 2.5, and filter after standing for 35m...

example 3

[0024] First, plant ramie on a land of 5m×5m. In the initial stage of ramie growth, spray 100mg / L butyl titanate evenly on the leaves of ramie, and then water tap water 8 hours after spraying. Continuously alternate spraying and watering for 20 days, and then change to water. Spray with 200mg / L butyl titanate, and then pour carbon tetrachloride solution 8 hours after spraying, continuously alternately spray and water for 14 days, and finally spray with 300mg / L butyl titanate solution, and then use it after 8 hours Irrigate with propanol, spray continuously and alternately, and water for 10 days, so that the cultivated ramie contains titanic acid; pick 4 kg of the above-mentioned cultivated ramie, clean it with water, put it into the reaction tank, and add 4% cellulose in total mass to the tank Enzyme, enzymatic hydrolysis for 4 hours, after enzymatic hydrolysis, add 40% concentrated hydrochloric acid to the pool for acidification until the pH reaches 3, and filter after standin...

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PUM

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Abstract

The invention discloses a method for loading nanometer titanium dioxide on plant cellulose and application, and belongs to the field of titanium dioxide. The method includes the steps that ramie is cultivated to make branches and leaves of the ramie be rich in titanic acid, ramie cellulose is made into a paste shape through enzymolysis and acidification and squeezed into filaments through a thin film, and the filaments are soaked in a boiled mixed solution of sodium hydroxide and butyl titanate, then collected, washed and dried to obtain the cellulose loaded with the nanometer titanium dioxide. The plant is cultivated with the butyl titanate to make the plant itself contain the nanometer titanium dioxide, when the plant is made into products, the nanometer titanium dioxide can be uniformly distributed without external addition, the uniform dispersity is good, anti-ultraviolet, antibacterial and cleaning performance is good, the production technology is simple, and cost is low.

Description

technical field [0001] The invention discloses a method and application of attaching plant cellulose to nano-titanium dioxide, and belongs to the field of titanium dioxide. Background technique [0002] Nano-TiO 2 It can not only absorb ultraviolet rays, but also reflect and scatter ultraviolet rays, and can also pass through visible light. It is a physical shielding type ultraviolet protective agent with superior performance and great development prospects. The strong anti-ultraviolet ability of nano titanium dioxide is due to its high refraction and high photoactivity. Its anti-ultraviolet ability and its mechanism are related to its particle size: when the particle size is large, the blocking of ultraviolet rays is mainly based on reflection and scattering, and it is effective for both medium-wave and long-wave ultraviolet rays. The mechanism of sun protection is simple covering, which belongs to general physical sun protection, and the sun protection ability is weak; a...

Claims

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Application Information

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IPC IPC(8): D06M11/46A01G1/00A01G7/06D06M13/148D06M13/152D04H1/4382D06M101/06
Inventor 陈毅忠王志慧
Owner CHANGZHOU OPTICAL MATERIAL