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Method for preparing nano-doping metal organic framework with photocatalytic performance

A metal-organic framework, photocatalytic technology, applied in chemical instruments and methods, separation methods, chemical/physical processes, etc., can solve the problems of easy deactivation and low quantum efficiency, and achieve low cost, good specific surface area, composite light The effect of improving catalytic performance

Inactive Publication Date: 2017-09-22
ZHOUKOU NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, photocatalytic technology has problems such as low quantum efficiency and easy deactivation.

Method used

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  • Method for preparing nano-doping metal organic framework with photocatalytic performance
  • Method for preparing nano-doping metal organic framework with photocatalytic performance
  • Method for preparing nano-doping metal organic framework with photocatalytic performance

Examples

Experimental program
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Effect test

Embodiment 1

[0029] A method for preparing a nano-doped metal-organic framework with photocatalytic properties, the steps are as follows:

[0030] Step 1, adding polyvinylpyrrolidone into absolute ethanol for ultrasonication in a water bath until completely dissolved, then adding a stabilizer, adding n-butyl titanate dropwise, sealing and heating for 3 hours to obtain a nano-titanium dioxide sol solution wrapped in polyvinylpyrrolidone;

[0031] Step 2, adding ethyl silicate into the nano-titanium dioxide sol, sealing the micro-ultrasonic reaction for 1 hour, naturally cooling and then distilling under reduced pressure to obtain silicon nano-doped titanium dioxide colloid;

[0032] Step 3, adding ferric chloride and terephthalic acid to absolute ethanol, slowly adding acetic acid dropwise, after the dropwise addition, conduct a sealed reflux reaction for 2 hours, then leave to react for 8 hours, and obtain a suspension with precipitation after natural cooling;

[0033] Step 4, the suspensi...

Embodiment 2

[0045] A method for preparing a nano-doped metal-organic framework with photocatalytic properties, the steps are as follows:

[0046] Step 1, adding polyvinylpyrrolidone to absolute ethanol for ultrasonication in a water bath until it is completely dissolved, then adding a stabilizer, adding n-butyl titanate dropwise, sealing and heating for 5 hours to obtain a nano-titanium dioxide sol solution wrapped in polyvinylpyrrolidone;

[0047] Step 2, adding ethyl silicate into the nano-titanium dioxide sol, sealing the micro-ultrasonic reaction for 2 hours, naturally cooling and then distilling under reduced pressure to obtain silicon nano-doped titanium dioxide colloid;

[0048] Step 3, adding ferric chloride and terephthalic acid to absolute ethanol, slowly adding acetic acid dropwise, performing a sealed reflux reaction for 8 hours after the dropwise addition, then standing for reaction for 14 hours, and obtaining a suspension with precipitation after natural cooling;

[0049] St...

Embodiment 3

[0060] A method for preparing a nano-doped metal-organic framework with photocatalytic properties, the steps are as follows:

[0061] Step 1, adding polyvinylpyrrolidone to absolute ethanol in a water bath and ultrasonically until it is completely dissolved, then adding a stabilizer, adding n-butyl titanate dropwise, sealing and heating for 4 hours to obtain a nano-titanium dioxide sol solution wrapped in polyvinylpyrrolidone;

[0062] Step 2, adding ethyl silicate into the nano-titanium dioxide sol, sealing the micro-ultrasonic reaction for 2 hours, naturally cooling and then distilling under reduced pressure to obtain silicon nano-doped titanium dioxide colloid;

[0063] Step 3, adding ferric chloride and terephthalic acid to absolute ethanol, slowly adding acetic acid dropwise, performing a sealed reflux reaction for 5 hours after the dropwise addition, and then standing for reaction for 12 hours, and obtaining a suspension with precipitation after natural cooling;

[0064]...

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Abstract

The invention discloses a method for preparing a nano-doping metal organic framework with photocatalytic performance. The method comprises the following steps: a tetrabutyl titanate coated nano particle sol is prepared by polyvinylpyrrolidone and absolute ethyl alcohol, and ethyl silicate is adopted to perform doping reaction to obtain a silicon-doped nanometer titania sol; ferric chloride, terephthalic acid and acetic acid are added into absolute ethyl alcohol for sealed refluxing and standing crystallization reaction; filtering and washing are performed to obtain the metal organic framework; at last,absolute ethyl alcohol is added into the metal organic framework, and the sol is dripped for aeration circular reaction; and high-temperature treatment is performed to obtain the nano-doping metal organic framework. The prepared nano-doping metal organic framework has a favorable specific surface area, meanwhile, has favorable photocatalytic performance and also has a favorable degradation effect.

Description

technical field [0001] The invention belongs to the technical field of ternary cathode materials, and in particular relates to a preparation method of a nano-doped metal organic framework with photocatalytic performance. Background technique [0002] Metal-organic frameworks (MOFs) materials are zeolite-like materials with a repeating network structure formed by self-assembly of organic ligands and metal ions. It is a relatively rapid development in the field of coordination chemistry in recent decades. new material. Compared with traditional inorganic porous materials, MOFs materials have larger porosity and specific surface area, especially adjustable pore size and variable functional groups. At present, MOFs materials have been applied in hydrogen storage, drug delivery, catalytic reaction, biosensor, gas adsorption and separation, etc. The research on metal-organic framework materials involves the latest achievements in organic chemistry, inorganic chemistry, coordinat...

Claims

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Application Information

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IPC IPC(8): B01J31/22B01J35/10B01D53/86B01D53/72C02F1/32C02F101/36C02F101/38
CPCB01D53/007B01D53/8668C02F1/32B01J31/2208C02F2305/10C02F2101/40C02F2101/36C02F2101/38B01D2259/804B01D2258/06B01D2255/802B01J35/61B01J35/39
Inventor 石晓明蔡斌孟玉宁肖利娜李书静田丰收彭鹏
Owner ZHOUKOU NORMAL UNIV
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