Method for sepiolite/nano TiO2 in situ synthesis and doping modification

An in-situ synthesis, sepiolite technology, applied in chemical instruments and methods, chemical/physical processes, physical/chemical process catalysts, etc., can solve the problems of low purification rate and poor additive effect, and achieve strong oxidation ability, Good formaldehyde removal ability, low price effect

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

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Problems solved by technology

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

Method used

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  • Method for sepiolite/nano TiO2 in situ synthesis and doping modification

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A kind of sepiolite / nano-TiO 2 The method of in-situ synthesis, doping modification, sepiolite, tetrabutyl titanate and Gd 2 o 3 As raw materials, sepiolite / nano-TiO were synthesized by in-situ polymerization 2 Composite materials, including the following steps:

[0027] (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;

[0028] (2) Add 0.1g Gd 2 o 3 Dissolve in 1.5ml dilute hydrochloric acid and add to the three-necked bottle;

[0029] (3) 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 heat until the water is completely volatilized;

[0030] (4) Wash the product several times with water, put it in a vacuum drying oven at 60°C fo...

Embodiment 2

[0033] A kind of sepiolite / nano-TiO 2 The method of in-situ synthesis, doping modification, sepiolite, tetrabutyl titanate and Gd 2 o 3 As raw materials, sepiolite / nano-TiO were synthesized by in-situ polymerization 2 Composite materials, including the following steps:

[0034] (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;

[0035] (2) Add 0.2g Gd 2 o 3 Dissolve in 3ml dilute hydrochloric acid and add to the three-necked bottle;

[0036] (3) 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 heat until the water is completely volatilized;

[0037] (4) Wash the product several times with water, put it in a vacuum drying oven at 75°C for 10h, and pu...

Embodiment 3

[0039] A kind of sepiolite / nano-TiO 2 The method of in-situ synthesis, doping modification, sepiolite, tetrabutyl titanate and Eu 2 o 3 As raw materials, sepiolite / nano-TiO were synthesized by in-situ polymerization 2 Composite materials, including the following steps:

[0040] (1) Add 5g of sepiolite to a 250ml three-necked bottle, 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;

[0041] (2) Add 0.1g Eu 2 o 3 Dissolve in 1.5ml dilute hydrochloric acid and add to the three-necked bottle;

[0042] (3) 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 heat until the water is completely volatilized;

[0043](4) Wash the product several times with water, put it in a vacuum drying oven at 60°C ...

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Abstract

The invention discloses a method for sepiolite/nano TiO2 in situ synthesis and doping modification. With sepiolite, tetrabutyl titanate and a rare earth additive as raw materials, a sepiolite/nano TiO2 composite material is synthesized by an in situ polymerization method; the method comprises the following steps: (1) mixing sepiolite, tetrabutyl titanate and ethanol, stirring to dissolve, and carrying out ultrasonic dispersion to obtain a mixed liquid; (2) dissolving the rare earth additive in dilute hydrochloric acid, and adding the mixed liquid obtained in the step (1); (3) gradually heating up to make ethanol evaporate completely, adding water, and then continuing heating to evaporate water to obtain a dried solid; and (4) washing the dried solid for a plurality of times, heating and drying to obtain a dried ingredient, and then calcining the dried ingredient to obtain a powder which is a modified sepiolite/nano TiO2 composite material. The method can be adopted to produce the composite material having a good function of removing formaldehyde.

Description

technical field [0001] The present invention specifically relates to a sepiolite / nano-TiO 2 In-situ synthesis and doping modification methods. 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 method of in-situ synthesis and doping modification solves the problems of poor effect and low purification rate of existing additives. [0004] The present invention realizes through following technical scheme: [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
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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