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Adsorption microspheres capable of removing heavy metal ions rapidly and preparation method

A technology of heavy metal ions and adsorbing microspheres, which is applied in the directions of alkali metal compounds, chemical instruments and methods, adsorbed water/sewage treatment, etc., can solve the problems of high manufacturing cost, cumbersome preparation process, harsh preparation conditions, etc., and achieves convenient operation, Controllable process and low cost effect

Active Publication Date: 2018-12-25
山东济清科技服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as far as the current research status is concerned, there are still disadvantages such as cumbersome preparation process, harsh preparation conditions, and high manufacturing cost.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Add 0.128g of polyethylene glycol, 0.3g of hexamethylenediamine, and 40mL of ultrapure water into a beaker and place it on a magnetic heating stirrer to completely dissolve and mix evenly to prepare a polyethylene glycol-hexamethylenediamine mixture viscous solution. Then add 0.65g of tannic acid and 100mL of ultrapure water into a three-neck flask and place it on a heat-collecting constant temperature magnetic stirrer at 25°C to stir and dissolve. Finally, the prepared polyethylene glycol-hexamethylenediamine viscous solution The temperature is controlled at 30°C and evenly added dropwise to the tannic acid solution with a peristaltic pump and reacted for more than 24h under magnetic stirring. Then the precipitate was washed 2–4 times with deionized water and freeze-dried. In the chromium ion adsorption experiment, the adsorption amount increased rapidly with time in the first 180 minutes, then slowed down, and basically remained unchanged after 12 hours. At this tim...

Embodiment 2

[0023] Add 0.128g of polyvinyl alcohol, 0.45g of hexamethylenediamine, and 40mL of ultrapure water into a beaker and place it on a magnetic heating stirrer to completely dissolve and mix evenly to prepare polyethylene glycol-hexamethylenediamine mixed viscose. solution. Then, 0.96g of tannic acid and 100mL of ultrapure water were added into a three-necked flask and placed on a heat-collecting constant temperature magnetic stirrer at 30°C to stir and dissolve. Finally, the prepared polyethylene glycol-hexamethylenediamine viscous solution Add it dropwise into the tannic acid solution with a peristaltic pump and react for more than 24 hours under magnetic stirring. Then the precipitate was washed 2–4 times with deionized water and freeze-dried. In the chromium ion adsorption experiment, the adsorption amount increased rapidly with time in the first 180 minutes, then slowed down, and basically remained unchanged after 12 hours. At this time, the adsorption capacity can reach ab...

Embodiment 3

[0025] Add 0.256g of polyethylene glycol, 0.4g of hexamethylenediamine, and 40mL of ultrapure water into a beaker and place it on a magnetic heating stirrer to completely dissolve and mix evenly to prepare a polyethylene glycol-hexamethylenediamine mixture viscous solution. Then add 0.9g of tannic acid and 120mL of ultrapure water into a three-neck flask and place it on a heat-collecting constant temperature magnetic stirrer at 30°C to stir and dissolve. Finally, the prepared polyethylene glycol-hexamethylenediamine viscous solution Add it dropwise into the tannic acid solution with a peristaltic pump and react for more than 24 hours under magnetic stirring. Then the precipitate was washed 2–4 times with deionized water and freeze-dried. In the chromium ion adsorption experiment, the adsorption amount increased rapidly with time in the first 180 minutes, then slowed down, and basically remained unchanged after 12 hours. At this time, the adsorption capacity can reach about 4...

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Abstract

The invention discloses adsorption microspheres capable of removing heavy metal ions rapidly and a preparation method. The method comprises the steps of adding a hydrophilic polymer in a diamine or polyamine solution at first; mixing uniformly and then dropwise adding to a polyphenol solution; and reacting for a certain time and then separating to obtain a spherical polyphenol amine adsorption material. The preparation method is simple in process, convenient to operate, controllable in technology, gentle in condition, good in repeatability, low in cost and convenient to popularize and use, andthe spherical polyphenol amine adsorption material has a good heavy metal ion adsorption property, can be applied to treatment of various kinds of wastewater, and has wide application prospect.

Description

technical field [0001] The invention relates to the field of preparation of adsorbents, in particular to an adsorption microsphere for rapidly removing heavy metal ions and a preparation method, and belongs to the technical field of functional polymer materials. Background technique [0002] Heavy metal pollution is one of the severe environmental problems facing the world today, and it is also one of the thorny problems that need to be solved urgently. Most of its ions are highly toxic substances that are carcinogenic, teratogenic, and mutagenic, and cannot be biodegraded in the environment. Once pollution is caused, it is difficult to eliminate through self-purification; and heavy metal ions in water can be biosorbed and enriched along the food chain. Accumulate in the human body, leading to various diseases and disorders. From "Minamata disease" to "bone pain disease", from "excessive blood lead" to "cadmium rice", the serious harm of heavy metal pollution has been prove...

Claims

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Application Information

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IPC IPC(8): B01J20/26B01J20/28B01J20/30C02F1/28C02F101/20
CPCB01J20/26B01J20/28021B01J20/30C02F1/285C02F2101/20
Inventor 刘钦泽苑乘兵高嵩张秋月
Owner 山东济清科技服务有限公司