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Nanomaterial for promoting photolysis of organic matter and preparation method of nanomaterial

A nano-material and photodecomposition technology, applied in the field of nano-materials, can solve the problems of low organic matter decomposition efficiency, incomplete decomposition, uneven use, etc., achieve fast decomposition rate, simple preparation method, and promote the effect of organic matter decomposition

Inactive Publication Date: 2018-01-19
BAOJI YONGSHENGTAI TITANIUM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When titanium dioxide is used to decompose organic matter in sewage, titanium dioxide is a photocatalyst, and the decomposition process of organic matter will not reduce the amount of titanium dioxide. Incomplete decomposition, excessive use of titanium dioxide will cause waste of cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0026] The preparation method of the modified bentonite is as follows: crush the bentonite, pass through a 150-250 mesh sieve, then put the bentonite in a hydrochloric acid solution with a mass fraction of 15%-30% at a mass ratio of 1:500, and heat it in a water bath for 40 -50°C, filter after 30min-50min, take the acidified bentonite, put it in a reaction kettle, adjust to 900°C-1200°C for calcination, then pulverize, pass through a 150-250 mesh sieve to obtain modified bentonite.

[0027] A method for preparing nanomaterials for promoting photodecomposition of organic matter, specifically implemented according to the following steps:

[0028] Step 1. Crush the bentonite, pass through a 150-250 mesh sieve, then put the bentonite in a hydrochloric acid solution with a mass fraction of 15%-30% at a mass ratio of 1:500, and heat it in a water bath, keeping at 40-50°C for 30min Filtrate after -50min, take the acidified bentonite, put it in a reaction kettle, adjust to 900°C-1200°...

Embodiment 1

[0033] A nanomaterial used to promote the photodecomposition of organic matter, the nanomaterial includes modified bentonite, TiO 2 Nanoparticles, metal nanoparticles, binders, blowing agents, TiO 2 The nanoparticles are 50 nm in diameter.

[0034] The mass percent composition of each component is as follows: modified bentonite 60%, TiO 2 Nanoparticles 20%, metal nanoparticles 10%, binder 10%.

[0035] The metal nanoparticles are iron.

[0036] The binder is polytetrafluoroethylene PTFE.

[0037] The preparation method of the modified bentonite is as follows: crush the bentonite, pass through a 150-mesh sieve, then put the bentonite in a hydrochloric acid solution with a mass fraction of 15% at a mass ratio of 1:500, heat in a water bath, keep at 40°C, and filter after 30 minutes , take the acidified bentonite, put it in a reaction kettle, adjust it to 900°C for calcination, then pulverize it, and pass it through a 150-mesh sieve to obtain a modified bentonite.

[0038] A...

Embodiment 2

[0044] A nanomaterial used to promote the photodecomposition of organic matter, the nanomaterial includes modified bentonite, TiO 2 Nanoparticles, metal nanoparticles, binders, blowing agents, TiO 2 The nanoparticles are 60nm in diameter.

[0045] The mass percent composition of each component is as follows: modified bentonite 65%, TiO 2 Nanoparticles 18%, metal nanoparticles 8%, binder 9%.

[0046] The metal nanoparticles are chromium.

[0047] The binder is polytetrafluoroethylene PTFE.

[0048]The preparation method of the modified bentonite is as follows: crush the bentonite, pass through a 180-mesh sieve, then put the bentonite in a hydrochloric acid solution with a mass fraction of 18% at a mass ratio of 1:500, heat in a water bath, keep at 42°C, and filter after 35 minutes , take the acidified bentonite, put it in a reaction kettle, adjust it to 960°C for calcination, then pulverize it, and pass it through a 180-mesh sieve to obtain a modified bentonite.

[0049] A...

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Abstract

The invention discloses a nanomaterial for promoting photolysis of organic matter. The nanomaterial is prepared from modified bentonite, TiO2 nanoparticles, metal nanoparticles, a binder and a foamer,wherein the diameter of the TiO2 nanoparticles ranges from 50 nm to 90 nm. The nanomaterial for promoting photolysis of the organic matter can effectively promote decomposition of the organic matterin sewage and is high in decomposition rate; sewage treatment cost can be reduced, and the application range is wide; a preparation method of the nanomaterial for promoting photolysis of the organic matter is simple and suitable for batch production.

Description

technical field [0001] The invention belongs to the technical field of nanometer materials, and in particular relates to a nanometer material for promoting the photodecomposition of organic matter, and also relates to a preparation method of the material. Background technique [0002] Nano-titanium dioxide is a white loose powder with strong ultraviolet shielding effect, good dispersion and weather resistance. Advanced treatment of tap water with TiO2 photocatalytic oxidation can greatly reduce the number of bacteria in the water, no mutagenic effect after drinking, and meet the standard of safe drinking water; adding nano-TiO2 to the coating can produce bactericidal, antifouling, deodorizing, self-cleaning Antibacterial and antifouling coatings are widely used in places where bacteria are dense and easy to multiply, such as hospital wards, operating rooms, and family bathrooms. They can purify the air, prevent infection, and deodorize and deodorize. Can effectively kill an...

Claims

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Application Information

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IPC IPC(8): B01J23/745B01J23/26B01J23/755B01J23/34B82Y30/00B82Y40/00C02F1/30C02F101/30
Inventor 刘宝权周辉良文锐刘靖
Owner BAOJI YONGSHENGTAI TITANIUM IND
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