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Water quality purification and adsorption material and preparation method and application thereof

A kind of adsorption material and water purification technology, applied in various application fields, can solve the problems of not paying attention to the removal effect of low concentration, poor polarity of the adsorption material, complicated production process, etc., and achieve easy large-scale use and industrialization promotion, excellent regeneration performance, The effect of simple preparation process

Active Publication Date: 2021-01-19
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the preparation process of the above-mentioned inventions requires high temperature, complex production process, high energy consumption and high cost, and the polarity of the adsorption material in the patent CN107335341A is poor, and the adsorption effect on polar pollutants is not good; although the patent CN109748445A uses carbon fiber as the adsorption material, there is improvement. But it did not pay attention to the removal effect of low concentration
[0009] Therefore, it is urgent to develop a broad-spectrum adsorption material to realize the one-time removal of trace organic pollutants and heavy metal ions in water, so as to solve the problem of difficult removal of trace pollutants and heavy metal ions in drinking water.

Method used

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  • Water quality purification and adsorption material and preparation method and application thereof
  • Water quality purification and adsorption material and preparation method and application thereof
  • Water quality purification and adsorption material and preparation method and application thereof

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preparation example Construction

[0041] According to the second aspect of the present invention, there is provided a method for preparing the above-mentioned adsorption material for water purification, the method comprising the following steps:

[0042] (1) Grafting or copolymerizing N-vinylamide monomers on the matrix material to obtain the modified matrix material;

[0043] (2) hydrolyzing the modified matrix material to obtain a matrix material with an amine group;

[0044] (3) Add the functional compound with epoxy and react to couple it on the base material.

[0045] The preparation method is described and illustrated in detail below.

[0046] Step (1) Grafting or copolymerizing N-vinylamide monomers on the matrix material to obtain the modified matrix material.

[0047] According to the present invention, in this step, the matrix material can be a hydrophobic material or a hydrophilic material, preferably a hydrophobic material; the form of the matrix material can be fibers, microspheres, non-woven fa...

Embodiment 1

[0090] Example 1 Preparation of PP-PNVF functional film

[0091] Take 1.2g of N-vinylformamide (NVF) and add it to 2.74g of deionized water and mix well; take 0.24g of benzophenone (BP) and add it to 1.82g of acetone, after completely dissolving, mix the solution with the aqueous solution containing NVF , forming a grafted monomer solution. Take 1 piece of polypropylene fiber membrane, place it on a glass slide with a shallow groove, then add 0.3ml of grafted monomer solution, cover it with a quartz cover glass, press it tightly, and put it under the ultraviolet light for 7.5 minutes, then take out the membrane, Wash with a large amount of ethanol and water respectively, soak in acetone at last, dry at room temperature to obtain polypropylene grafted NVF film (PP-PNVF), and its infrared spectrum is figure 1 b.

Embodiment 2

[0092] Example 2 Preparation of PP-PNVF functional film

[0093] Take 0.3g of N-vinylformamide (NVF) and add it to 5.1g of deionized water and mix well; take 0.03g of benzophenone (BP) and add it to 0.6g of acetone, after completely dissolving, mix the solution with the aqueous solution containing NVF , forming a grafted monomer solution. Take 1 piece of polypropylene fiber membrane, place it on a glass slide with a shallow groove, then add 0.1ml of grafted monomer solution, cover it with a quartz cover glass, press it tightly, and put it under the ultraviolet light for 6 minutes, then take out the membrane, Wash with a large amount of ethanol and water respectively, soak in acetone at last, and dry at room temperature to obtain a polypropylene grafted NVF film (PP-PNVF). figure 1 b is similar.

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Abstract

The invention provides a water quality purification and adsorption material, and a preparation method and application thereof in drinking water purification, wherein the water quality purification andadsorption material is obtained by taking a matrix material, an N-vinylamide monomer and a functional compound with epoxy as raw materials through multi-step reaction; the preparation method comprises the steps: firstly, grafting or copolymerizing the N-vinylamide monomer on the matrix material, then hydrolyzing to obtain a matrix material with an amino group, finally adding the functional compound with the epoxy group for reaction, and coupling the functional compound with the matrix material. The water quality purification and adsorption material is combined with a separation membrane technology, has a broad-spectrum adsorption function, can efficiently remove trace organic and inorganic pollutants and heavy metals in drinking water, improves the quality and safety of the drinking water, improves the hydrophilicity of a polypropylene membrane, and improves the water permeability of the polypropylene membrane.

Description

technical field [0001] The invention belongs to the field of fine polymer products, and in particular relates to a broad-spectrum adsorption material, its preparation method and its application in drinking water purification and the like. Background technique [0002] Water is one of the indispensable and important resources for human survival and development. However, with the rapid development of petrochemical, smelting, mining, electroplating and other industries, water resources are gradually becoming polluted by heavy metals and new micro-pollutants, and present Multiple situations. [0003] Heavy metal elements generally refer to metal elements with a relative density greater than or equal to 5, including elements with significant physiological toxicity, such as lead, cadmium, mercury, and metalloid arsenic, etc.; also include general heavy metals with certain toxicity, such as zinc, cobalt, copper, Nickel, manganese, etc. (Hutton M, Symon C. Science of the total envi...

Claims

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Application Information

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IPC IPC(8): B01J20/30B01J20/26C02F1/28B01D15/08C02F101/20C02F101/30
CPCB01J20/264B01J20/20C02F1/283C02F1/285B01D15/08C02F2101/30C02F2101/20
Inventor 陈晓农桂起林胡珂星欧阳齐张金星
Owner BEIJING UNIV OF CHEM TECH