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Synthetic method of sepiolite/nano TiO2 composite material

The technology of a composite material and a synthesis method is applied in the synthesis field of sepiolite/nano TiO2 composite material, which can solve the problems of poor additive effect and low purification rate, and achieve good formaldehyde removal ability, good adsorption, and enhanced photocatalytic performance. Effect

Inactive Publication Date: 2014-01-22
四川嘉宝莉涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a kind of sepiolite / nano TiO 2 The synthesis method of composite materials solves the problems of poor effect and low purification rate of existing additives

Method used

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  • Synthetic method of sepiolite/nano TiO2 composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Sepiolite / Nano TiO 2 Synthesis method of composite materials, using sepiolite and tetrabutyl titanate as raw materials, using in-situ polymerization to synthesize sepiolite / nano-TiO 2 Composite materials, including the following steps:

[0023] (1) Add 5g of sepiolite to a 250ml three-neck flask, slowly add 100ml of ethanol, 12.5ml of tetrabutyl titanate, stir at a speed of 400r / min for 30min in a constant temperature water bath at 25°C, and then ultrasonically disperse for 30min to make the seafoam The stone and the solution are mixed evenly;

[0024] (2) Heat up to 90°C and stir the solution at a speed of 500r / min until the ethanol is completely volatilized, add 187.5ml of water and 1.25ml of hydrochloric acid, and heat until the water is completely volatilized;

[0025] (3) Wash the product several times with water, place it in a vacuum drying oven at 60°C for 12 hours, and then put it in a muffle furnace at 500°C for calcination for 4 hours to obtain sepiolite / nan...

Embodiment 2

[0028] Sepiolite / Nano TiO 2 Synthesis method of composite materials, using sepiolite and tetrabutyl titanate as raw materials, using in-situ polymerization to synthesize sepiolite / nano-TiO 2 Composite materials, including the following steps:

[0029] (1) Add 8g of sepiolite to a 250ml three-necked flask, slowly add 130ml of ethanol, 20ml of tetrabutyl titanate, stir at a speed of 600r / min in a constant temperature water bath at 40°C for 22min, and then ultrasonically disperse for 35min to make the sepiolite and The solution is mixed evenly;

[0030] (2) Heat up to 80°C and stir the solution at a speed of 600r / min until the ethanol is completely volatilized, add 200ml of water and 1.5ml of hydrochloric acid, and heat until the water is completely volatilized;

[0031] (3) Wash the product several times with water, put it in a vacuum drying oven at 75°C for 10h, and put it in a muffle furnace at 560°C for 3.2h to obtain sepiolite / nano-TiO 2 composite material.

Embodiment 3

[0033] Sepiolite / Nano TiO 2 Synthesis method of composite materials, using sepiolite and tetrabutyl titanate as raw materials, using in-situ polymerization to synthesize sepiolite / nano-TiO 2 Composite materials, including the following steps:

[0034] (1) Add 3g of sepiolite to a 250ml three-necked bottle, slowly add 80ml of ethanol, 10ml of tetrabutyl titanate, stir at a speed of 800r / min in a constant temperature water bath at 30°C for 18min, and then ultrasonically disperse for 30min to make the sepiolite and The solution is mixed evenly;

[0035] (2) Heat up to 85°C and stir the solution at a speed of 550r / min until the ethanol is completely volatilized, add 145ml of water and 1.0ml of hydrochloric acid, and heat until the water is completely volatilized;

[0036] (3) Wash the product several times with water, put it in a vacuum drying oven at 85°C for 7.5h, and put it in a muffle furnace at 610°C for 2.8h to obtain sepiolite / nano-TiO 2 composite material.

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Abstract

The invention discloses a synthetic method of a sepiolite / nano TiO2 composite material. According to the method, sepiolite and tetrabutyl titanate are taken as raw materials, and the sepiolite / nano TiO2 composite material is synthesized with an in-situ polymerization method. The method comprises the steps as follows: 1), the sepiolite, the tetrabutyl titanate and ethyl alcohol are mixed, stirred, dissolved and subjected to ultrasonic dispersion; 2), the temperature is raised gradually until the ethyl alcohol is volatilized thoroughly, hydrochloric acid and water are added, heating is performed continuously, and the water is volatilized, so that a dried solid is obtained; and 3), the dried solid is washed for a plurality of times and then heated and dried, a dried component is obtained, then the dried component is calcined, and powder, namely, the sepiolite / nano TiO2 composite material, is obtained. With the adoption of the method, the composite material which has a good formaldehyde-removing function can be prepared.

Description

technical field [0001] The present invention specifically relates to a sepiolite / nano-TiO 2 Methods of synthesis of composite materials. Background technique [0002] At present, corresponding additives are added to the coatings to remove formaldehyde, but the effect of the existing coatings is not good, and the purification rate is very low, mainly due to the selection of additives and the problem of preparation methods, which cannot be improved during the preparation process The adsorption properties of additives, etc. fundamentally do not completely solve the problem of removing formaldehyde, so that people's needs cannot be met. Contents of the invention [0003] The object of the present invention is to provide a kind of sepiolite / nano TiO 2 The synthesis method of composite materials solves the problems of poor effect and low purification rate of existing additives. [0004] The present invention realizes through following technical scheme: [0005] Sepiolite / Na...

Claims

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Application Information

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IPC IPC(8): B01J21/16B01J20/12C09D7/12
Inventor 程俊赵强周雪郭丽缨
Owner 四川嘉宝莉涂料有限公司
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