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Preparation method of multifunctional flocculant

A flocculant, multi-functional technology, applied in the field of material chemistry, can solve the problems of high cost, low treatment efficiency, difficult adsorption of organic pollutants, etc., to achieve multi-functionality, improve treatment efficiency, good oil and suspended solids adsorption capacity Effect

Inactive Publication Date: 2019-08-09
合肥萃励新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the traditional flocculation and precipitation, there are still a large number of soluble ions, and the organic pollutants that are difficult to adsorb remain. It needs to be further purified by a multi-step process, and the treatment efficiency is low and the cost is high.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] 0.4mol / L of 1,4-naphthalene diamine monomer, 20g / L hydroxylated CuFeO 2 Add magnetic powder and 0.2mol / L succinic dialdehyde to 50mL deionized water and stir to form a sol; another 0.6mol / L ammonium persulfate and 2wt% vinyltrimethoxysilane are dissolved in another beaker filled with deionized water to form Sol; two parts of sol were mixed and reacted at room temperature for 2 hours to obtain a multifunctional flocculant. The material is put into 5mmol / L lead nitrate solution for adsorption, and the maximum adsorption capacity is 210mg / g. Put into 10mmol / L methyl orange solution, the ultraviolet photocatalyst degrades methyl orange and the degradation rate reaches 97% in 60 minutes.

Embodiment 2

[0012] 0.8mol / L of 1,4-naphthalene diamine monomer, 40g / L hydroxylated CuFeO 2 Add magnetic powder and 0.4mol / L succinic dialdehyde to 50mL deionized water and stir to form a sol; another 1.2mol / L potassium persulfate and 3wt% vinyltrimethoxysilane are dissolved in another beaker filled with deionized water to form Sol; two parts of sol were mixed and reacted at room temperature for 3 hours to obtain a multifunctional flocculant. The material is put into 5mmol / L lead nitrate solution for adsorption, and the maximum adsorption capacity is 243mg / g. Put into 10mmol / L methyl orange solution, the ultraviolet photocatalyst degrades methyl orange and the degradation rate reaches 95% in 60 minutes.

Embodiment 3

[0014] 0.6mol / L of 1,4-naphthalene diamine monomer, 30g / L hydroxylated CuFeO 2 Add magnetic powder and 0.3mol / L succinic dialdehyde to 50mL deionized water and stir to form a sol; another 0.8mol / L sodium persulfate and 2wt% vinyltrimethoxysilane are dissolved in another beaker filled with deionized water to form Sol; two parts of sol were mixed and reacted at room temperature for 2 hours to obtain a multifunctional flocculant. The material is put into 5mmol / L lead nitrate solution for adsorption, and the maximum adsorption capacity is 221mg / g. Put into 10mmol / L methyl orange solution, the ultraviolet photocatalyst degrades methyl orange and the degradation rate reaches 95% in 60 minutes.

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PUM

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Abstract

The invention provides a preparation method of a multifunctional flocculant. The preparation method is characterized by comprising the following steps: adding 1,4-naphthalene diamine monomer, hydroxylated CuFeO2 magnetic powder and succinic aldehyde into deionized water, and stirring them to form sol; dissolving an initiator and vinyl trimethoxysilane in another beaker containing deionized water to form sol; and mixing the two sols, and executing reaction at room temperature for 2-3 hours to obtain the multifunctional flocculant. According to the invention, persulfate is used as an oxidant, and in-situ polymerization is carried out on CuFeO2 magnetic powder to generate poly-1-4-naphthalene diamine, and the obtained flocculant not only has good oil pollution and suspension adsorption capacity, but also has soluble heavy metal ion adsorption capacity, and meanwhile, under the activation effect of the CuFeO2 magnetic powder, excessive persulfate can play a role in photocatalytic degradation of organic pollutants, so that the multifunctionality of the flocculant is achieved, and the water pollution treatment efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of material chemistry and relates to a preparation method of a multifunctional flocculant. Background technique [0002] my country is a country with a shortage of water resources. With the rapid economic development, the demand for water resources is increasing, which brings a lot of water pollution problems. Flocculant is currently the most widely used agent in sewage treatment, and is usually used for the adsorption and removal of suspended particles in water and some oil pollution. After the traditional flocculation and precipitation, there are still a large number of soluble ions, and the organic pollutants that are difficult to adsorb remain. It needs to be further purified with a multi-step process, and the treatment efficiency is low and the cost is high. Contents of the invention [0003] The object of the present invention is to provide a kind of preparation method of multifunctional flocculant,...

Claims

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Application Information

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IPC IPC(8): C08G73/02C02F1/56C02F1/30C02F101/30
CPCC02F1/30C02F1/56C02F2101/30C08G73/026
Inventor 不公告发明人
Owner 合肥萃励新材料科技有限公司