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Nano heavy metal wastewater ion adsorption microspheres and preparation method thereof

An ion adsorption, heavy metal technology, applied in the directions of alkali metal compounds, chemical instruments and methods, adsorption water/sewage treatment, etc., can solve the problems of poor adsorption effect, high price, poor desorption ability, etc. The effect of low cost and easy availability of raw materials

Active Publication Date: 2018-04-17
广东腾昊建设工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Adsorption method is currently the most widely used, easiest to operate, and most ideal treatment method for heavy metal ions. It makes heavy metal ions adhere to the surface of the active sites of the adsorbent through physical or chemical methods, and then achieves the removal of heavy metal ions. Methods, common adsorbents include natural materials represented by activated carbon and artificial synthetic resin adsorption materials. Natural materials are easy to obtain and low in cost, but the adsorption effect is poor. Artificial synthetic resin adsorption materials have better adsorption effect, but are expensive and desorb. Relatively poor adsorption capacity

Method used

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  • Nano heavy metal wastewater ion adsorption microspheres and preparation method thereof
  • Nano heavy metal wastewater ion adsorption microspheres and preparation method thereof
  • Nano heavy metal wastewater ion adsorption microspheres and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0023] A method for preparing nano heavy metal wastewater ion adsorption microspheres, comprising the steps of:

[0024] 1) Preparation of porous graphene microspheres: Mix 100 g of graphene oxide with 1000 g of deionized water evenly, disperse ultrasonically for 15 minutes, then add 20 g of polystyrene microspheres, so that polystyrene microspheres are evenly dispersed in graphene oxide , then add 100g of glucose, mix well, then carry out electrostatic spraying, wet collection, then add it to dimethyl sulfoxide and soak for 5 hours, and then dry it for 6 hours under wet conditions to obtain porous nano Graphene microspheres;

[0025] 2) Surface modification of porous graphene microspheres: Disperse 90 g of porous graphene microspheres prepared in step 1) in 300 g of ethanol, add 1,3,5-tris[3-(trimethoxysilyl)propane base]-1,3,5-triazine-2,4,6(1H,3H,5H)-trione 30g, stirred at 40°C for 3 hours, then added 30g of ethyl chloride, kept stirring for 4 hours, Then centrifuged, was...

Embodiment 2

[0029] A method for preparing nano heavy metal wastewater ion adsorption microspheres, comprising the steps of:

[0030] 1) Preparation of porous graphene microspheres: Mix 100 g of graphene oxide and 1000 g of deionized water evenly, disperse ultrasonically for 17 minutes, and then add 40 g of polymethyl methacrylate microspheres to make the polymethyl methacrylate microspheres uniform Disperse in graphene oxide, then add 100g of glucose, mix well, then carry out electrostatic spraying, wet collection, then add it into N,N-dimethylformamide and soak for 5.5 hours, and then under wet conditions, use Near-point drying method for 7 hours to obtain porous nano-graphene microspheres;

[0031] 2) Surface modification of porous graphene microspheres: Disperse 120 g of porous graphene microspheres prepared in step 1) in 360 g of ethanol, add 1,3,5-tris[3-(trimethoxysilyl)propane base]-1,3,5-triazine-2,4,6(1H,3H,5H)-trione 30g, stirred at 45°C for 4 hours, then added bromopropane, ke...

Embodiment 3

[0035] A method for preparing nano heavy metal wastewater ion adsorption microspheres, comprising the steps of:

[0036] 1) Preparation of porous graphene microspheres: Mix 100 g of graphene oxide and 1000 g of deionized water evenly, disperse ultrasonically for 18 minutes, then add 60 g of polybutylacrylate microspheres, so that polybutylacrylate microspheres are evenly dispersed in graphite oxide Then add 100g of glucose, mix evenly, then carry out electrostatic spraying, wet collection, then add it into N-methylpyrrolidone and soak for 5.8 hours, and then use the near-point drying method under wet conditions for 9 hours, Obtain porous nano-graphene microspheres;

[0037] 2) Surface modification of porous graphene microspheres: Disperse 140 g of porous graphene microspheres prepared in step 1) in 400 g of ethanol, add 1,3,5-tris[3-(trimethoxysilyl)propane base]-1,3,5-triazine-2,4,6(1H,3H,5H)-trione 30g, stirred at 47°C for 5 hours, then added bromoethane 50g, kept stirring ...

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Abstract

The invention discloses a preparation method of nano heavy metal wastewater ion adsorption microspheres. The preparation method includes following steps: 1), preparing porous graphene microspheres; 2), modifying the surfaces of the porous graphene microspheres; 3), allowing ion exchange. The invention further discloses the nano heavy metal wastewater ion adsorption microspheres obtained by the preparation method. The surfaces of the porous graphene microspheres are modified with a triazine compound which is fixedly connected with haematoporphyrin through ionic bonds, and many amino and carboxyl on the surfaces enable the adsorption microspheres to be good in heavy metal ion adsorption effect, low in cost, high in adsorption capacity and easy in desorption.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to a nanometer heavy metal wastewater ion adsorption microsphere and a preparation method thereof. Background technique [0002] With the rapid development of modern industry, a large amount of waste water rich in heavy metal ions comes one after another. These heavy metal ions are not self-degradable, easily lead to water and soil pollution, and are enriched in organisms through the food chain. Health poses a great threat, restricting economic development and social progress. The effective control and treatment of wastewater containing heavy metal ions and the efficient recycling of valuable metals are problems that are faced and urgently needed to be solved in the field of environmental protection today. [0003] Adsorption method is currently the most widely used, easiest to operate, and most ideal treatment method for heavy metal ions. It makes heav...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/22B01J20/28B01J20/30C02F1/28C02F1/30C02F101/20
CPCB01J20/22B01J20/28021C02F1/285C02F1/30C02F2101/20
Inventor 向红先
Owner 广东腾昊建设工程有限公司
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