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Method for preparing nanometer catalyst for filter tips of cigarettes

A nano-catalyst and filter technology, which is applied in the field of nano-materials for cigarette filters, can solve problems such as the inability to fundamentally solve problems, and achieve the effect of solving harm and reducing harm.

Inactive Publication Date: 2012-08-01
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But it can't fundamentally solve the problem

Method used

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Examples

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Effect test

Embodiment 1

[0008] Embodiment 1: by nano-titanium dioxide: iron: copper is mixed in the mass ratio of 100:5:5 to obtain a mixture, then the mixture and water are added into water at a mass ratio of 1:25 to obtain an aqueous solution of the mixture, and then the mixture is added to the aqueous solution of the mixture, etc. Quantity of surfactant sodium dodecyl sulfonate and polyacrylic acid binder of 1 times the mass of the mixture were stirred at 90° C. for 4 hours to obtain a nano catalyst for cigarette filters. Then the prepared catalyst can be evenly sprayed in the fiber of the filter tip, and 65-85% of harmful substances produced by smoking can be degraded.

Embodiment 2

[0009] Embodiment 2: by nano-titanium dioxide: iron: copper is 100: 8: 8 mass ratio is mixed to obtain mixture, then mixture and water are added in water by the mass ratio of 1: 25 to obtain mixture aqueous solution, then in mixture aqueous solution, add mixture etc. The amount of surfactant fatty alcohol polyoxyethylene ether and the polyacrylic acid binder of 2 times the mass of the mixture were stirred at 90° C. for 4 hours to obtain a nano catalyst for cigarette filters.

Embodiment 3

[0010] Embodiment 3: by nano-titanium dioxide: iron: copper is mixed in the mass ratio of 100: 10: 10 to obtain a mixture, then the mixture and water are added into water at a mass ratio of 1: 25 to obtain an aqueous solution of the mixture, and then the mixture is added to the aqueous solution of the mixture, etc. The amount of surfactant amino acid and the polyacrylic acid binder of 4 times the mass of the mixture were stirred at 90° C. for 4 hours to obtain a nano catalyst for cigarette filters.

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Abstract

The invention relates to a method for preparing a nanometer catalyst for filter tips of cigarettes, aiming at reducing the proportion of hazardous substances during smoking the cigarettes. The method comprises the following steps of: firstly mixing nanometer titanium dioxide and iron with copper, cobalt or zinc to obtain a mixture; then adding the mixture to water to obtain a mixture water solution; adding a surfactant and a polyacrylate adhesive to the mixture water solution again; and stirring for 4 hours at the temperature of 90 DEG C to obtain the nanometer catalyst for the filter tips ofthe cigarettes. When the prepared catalyst is uniformly sprayed to fibers of the filter tips, the catalyst can decompose harmful substances to harmless substances within a short time, and reduce the proportion of the harmful substances by 65% to 85%. With the adoption of the nanometer catalyst, harm of the cigarettes to human health can be effectively reduced.

Description

technical field [0001] The invention relates to nanometer materials used for cigarette filters, in particular to a method for preparing a nanometer catalyst for cigarette filters that can decompose smoked cigarettes in a short time to decompose harmful substances. Background technique [0002] Smoking is a habit that endangers human health. In order to reduce its harm to the human body, businesses have adopted many methods, such as adding filters. But neither can fundamentally solve the problem. Studies have shown that harmful substances decomposed from smoking can cause deadly diseases such as lung cancer. Every year, the loss caused by smoking in my country is as high as more than 100 billion yuan. Contents of the invention [0003] The purpose of the present invention is to solve the existing problems in the above-mentioned prior art, and to provide a method for preparing a nano-catalyst for cigarette filters with low cost and easy preparation. [0004] In order to a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/80B01F17/02B01F17/42B01F17/28A24D3/14B82Y30/00B82Y40/00C09K23/02C09K23/28C09K23/42
Inventor 郭凌华刘保健姚宝晶宋蕊卜宇王峥杨琳琳焦旭英
Owner SHAANXI UNIV OF SCI & TECH
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