Preparation and application of nano-structure composite adsorption material

A nanostructure composite and adsorption material technology, which is applied in the preparation of lanthanum nitrate modified mesoporous silicon materials and the preparation of nanostructure composite adsorption materials, can solve the problems of serious environmental pollution, improve adsorption capacity, reduce production costs, The effect of the simple and easy operation of the preparation process

Inactive Publication Date: 2015-06-03
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

As a result, the situation of environmental pollution is becoming more and more serious

Method used

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  • Preparation and application of nano-structure composite adsorption material
  • Preparation and application of nano-structure composite adsorption material
  • Preparation and application of nano-structure composite adsorption material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] (1) Ultrasonic disperse the cellulose nanocrystal solution, add 70 mg of anhydrous glucose to 5 ml of the suspension solution, add 0.18 ml of methyl orthosilicate TMOS dropwise, mechanically stir in a water bath at 25 ° C for 1 h, pour into an evaporating dish, and place Evaporate to dryness in an oven at 23°C, and calcinate at 540°C for 6 hours to obtain a mesoporous silicon membrane material;

[0032] (2) Put the mesoporous silicon membrane material obtained in step (1) in 90ml of ethanol solution, add 0.09g of hexahydrate lanthanum nitrate crystals, shake in a water bath at 60°C for 24h, dry at 80°C, and calcined at 550°C for 6h to obtain Modified mesoporous silicon membrane material, that is, nanostructure composite adsorption material.

[0033] (3) Photos of nanostructured composite adsorption materials such as figure 1 shown.

[0034] (4) The scanning electron microscope image of the nanostructure composite adsorption material is as follows figure 2 as shown, ...

Embodiment 2

[0038] (1) Ultrasonic disperse the cellulose nanocrystal solution, add 80 mg of anhydrous glucose to 5 ml of the suspension solution, add 0.2 ml of methyl orthosilicate TMOS dropwise, mechanically stir in a water bath at 25 ° C for 1 h, pour into an evaporating dish, and place Evaporate to dryness in an oven at 25°C, and calcinate at 540°C for 6 hours to obtain a mesoporous silicon membrane material;

[0039] (2) Put the mesoporous silicon membrane material obtained in step (1) in 100ml of ethanol solution, add 0.11g of hexahydrate lanthanum nitrate crystals, shake in a water bath at 60°C for 24h, dry at 80°C, and calcined at 550°C for 6h to obtain Modified mesoporous silicon membrane material, that is, nanostructure composite adsorption material.

[0040] (3) The prepared nanostructured composite adsorption material was used in the separation and adsorption experiments of phosphate ions.

[0041] Phosphate ions are taken to form a series of phosphorus-containing aqueous solu...

Embodiment 3

[0047] (1) Ultrasonic disperse the cellulose nanocrystal solution, add 90 mg of anhydrous glucose to 5 ml of suspension solution, add 0.22 ml of methyl orthosilicate TMOS dropwise, mechanically stir in a water bath at 25 ° C for 1 h, pour into an evaporating dish, and place Evaporate to dryness in an oven at 28°C, and calcinate at 540°C for 6 hours to obtain a mesoporous silicon membrane material;

[0048] (2) Put the mesoporous silicon membrane material obtained in step (1) in 110ml of ethanol solution, add 0.13g of lanthanum nitrate crystals of hexahydrate, shake in a water bath at 60°C for 24h, dry at 80°C, and calcined at 550°C for 6h to obtain Modified mesoporous silicon membrane material, that is, nanostructure composite adsorption material.

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Abstract

The invention belongs to the field of a material preparation technology and a separation technology, discloses a preparation method of a nano-structure composite adsorption material, and particularly discloses a preparation method of a novel lanthanum nitrate modified mesoporous silicon material, and application of the novel lanthanum nitrate modified mesoporous silicon material to selectively adsorbing phosphate ions. In the method for preparing the composite modified material, lanthanum nitrate is taken as a modification ligand and mesoporous silicon with a large specific surface area is taken as a supporting material; the nano-structure composite adsorption material prepared by adopting the method has a performance for selectively adsorbing and separating the phosphate ions in wastewater. A result shows that the modified mesoporous silicon material provided by the invention has an excellent performance on selectively adsorbing the phosphate ions.

Description

technical field [0001] The invention belongs to the field of material preparation technology and separation technology, and relates to a preparation method of a nanostructured composite adsorption material, in particular to a preparation method of a novel lanthanum nitrate-modified mesoporous silicon material and a method for selectively absorbing phosphate ions in wastewater Applications. Background technique [0002] Along with the rapid development of my country's chemical industry, my country's phosphorus chemical industry has developed rapidly in the past two decades, providing a large amount of material wealth to the society and achieving encouraging results. However, with the development of phosphorus chemical industry, a large number of pollutants are also produced, mainly waste gas and dust, waste water, and solid waste (referred to as "three wastes"). Many toxic and harmful substances in these pollutants enter the atmosphere, rivers and rivers Lakes, seas and land ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/22B01J20/28B01J20/30C02F1/28C02F1/58
Inventor 黄勇强汪纯郑旭东潘建明闫永胜
Owner JIANGSU UNIV
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