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Laminated chitosan/organic rectorite/TiO2-Ag@AgCl intercalation nanometer composite photocatalytic film and preparing method thereof

A nanocomposite, photocatalytic film technology, applied in the direction of organic compound/hydride/coordination complex catalysts, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problem of less development and utilization of high added value, To achieve the effect of improving service life, environmental friendliness and improving efficiency

Inactive Publication Date: 2017-04-26
XIANYANG NORMAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There is a high-quality rectorite deposit with a reserve of more than 6 million tons in Hubei, my country. Because people know it later than other clays, there are few development and utilization of high value-added rectorite.

Method used

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  • Laminated chitosan/organic rectorite/TiO2-Ag@AgCl intercalation nanometer composite photocatalytic film and preparing method thereof
  • Laminated chitosan/organic rectorite/TiO2-Ag@AgCl intercalation nanometer composite photocatalytic film and preparing method thereof
  • Laminated chitosan/organic rectorite/TiO2-Ag@AgCl intercalation nanometer composite photocatalytic film and preparing method thereof

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Embodiment 1

[0040] 1. Preparation of organic rectorite

[0041] 5g rectorite was calcined at 850°C for 3 hours, then the calcined rectorite was added into 161.67g distilled water to form a rectorite suspension with a mass fraction of 3%, and 0.15g sodium pyrophosphate was added, at 60°C Stir for 3 hours, filter, wash and dry to obtain sodium rectorite. Add 5g of sodium rectorite to 161.67g of distilled water, stir homogeneously at high speed to fully disperse, then add 0.15g of cetyltrimethylammonium chloride, stir at 70°C for 8 hours, cool naturally, and filter with suction 1. Washing with water, drying the filter cake in an oven at 90°C for 8 hours, grinding and sieving to obtain the organic rectorite.

[0042] 2. Preparation of organic rectorite / TiO 2 -Ag@AgCl complex

[0043] (1) Mix 14 mL (51.31 mmol) of isopropyl titanate and 36 mL of 6 mol / L hydrochloric acid, and stir at room temperature for 3 hours to obtain a pillared solution.

[0044] (2) Ultrasonic disperse 5 g of organic...

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Abstract

The invention discloses a laminated chitosan / organic rectorite / TiO2-Ag@AgCl intercalation nanometer composite photocatalytic film and a preparing method thereof, and belongs to the technical field of environmental protection material preparing. The preparing method includes the steps that organic rectorite / TiO2 is prepared with the sol-gel method, the organic rectorite / TiO2-Ag@AgCl is prepared with the sedimentation method and the photo-reduction method, a chitosan / organic rectorite / TiO2-Ag@AgCl intercalation nanometer composite is prepared with the solution method, salivating, freezing and drying are repeatedly carried out, and a physical-cross-linking laminating composite film is prepared. The intercalation nanometer composite photocatalytic film is nontoxic, low in cost, biodegradable, good in stability and high in visible light photocatalysis activity, resource waste and secondary pollution can be avoided, and the laminated chitosan / organic rectorite / TiO2-Ag@AgCl intercalation nanometer composite photocatalytic film is hopefully applied in treating organic wastewater and indoor volatile organic gas in the field of industry, agriculture and the like.

Description

technical field [0001] The invention belongs to the technical field of preparation of environmental protection materials, in particular to a laminated chitosan / organic rectorite / TiO with adsorption-visible light photocatalysis function 2 - Preparation method of Ag@AgCl intercalated nanocomposite photocatalytic film. Background technique [0002] Organic wastewater often has complex components and is difficult to biodegrade. It accumulates and stores in natural environments such as water bodies and soils, seriously damaging the ecological environment and human health. Equally, the problem of indoor pollution caused by the use of building construction, interior decoration and daily necessities is also becoming more and more serious. Effective treatment of organic wastewater and removal of indoor volatile organic pollutant gases are the focus and difficulty of current research in the field of pollution control. Traditional methods for treating organic pollutants mainly includ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/38B01J35/02B82Y30/00B82Y40/00B01J20/24B01J20/28B01J20/30C02F1/28C02F1/30C02F101/38
CPCB01J20/22B01J20/24B82Y30/00B82Y40/00C02F1/285C02F1/30B01J20/28033B01J31/38C02F2101/38C02F2305/10B01J35/00B01J35/30B01J35/39B01J35/59
Inventor 杨连利郭乃妮张卫红郭颖耿薇孟小华
Owner XIANYANG NORMAL UNIV
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