Novel high-efficiency adsorbent and application thereof

An adsorbent and high-efficiency technology, which is applied in the field of preparation of new high-efficiency adsorbents, can solve the problems of few types of heavy metals and low adsorption efficiency, achieve high adsorption efficiency, strong adsorption capacity, and reduce the harm to humans and animals.

Active Publication Date: 2019-08-23
NANJING UNIV OF INFORMATION SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the adsorbents in the prior art can adsorb fewer types of heavy metals and have lower adsorption efficiency

Method used

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  • Novel high-efficiency adsorbent and application thereof
  • Novel high-efficiency adsorbent and application thereof
  • Novel high-efficiency adsorbent and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] In 100mL of dichloromethane, add 2.70g of template agent polyethylene, heat and reflux for 1 hour to dissolve polyethylene in dichloromethane, then add 1.00g of cyanuric chloride, 1.86g of bisphenol A, 0.94g of sodium sulfate and 0.96g of potassium carbonate, stirred for 20 minutes, several materials were uniformly mixed, rotary evaporation removed dichloromethane, and the temperature was raised to 180° C. and carried out polycondensation reaction at this temperature for 24 hours, using methanol aqueous solution (volume percent concentration of 50 %) and dichloromethane for Soxhlet extraction to obtain 1.20 g of a black solid, that is, a nitrogen-rich organic porous framework polymer (abbreviated as POFTABPE), with a yield of 53.1%.

[0024] Characterization of nitrogen-rich organic porous framework polymers. 1 H SSNMR: δ (ppm) = 1.29 (H in CH 3 ),6.68(H in Benzene).Elem.Anal.Calcd.for C 51 h 42 N 6 o 6 (834.7): C, 73.32; H, 5.03; N, 10.06. Found: C, 71.56; H, 5.51...

Embodiment 2-13

[0027] Concrete reaction conditions in table 1 embodiment 2-13

[0028]

[0029]

[0030] Concrete reaction conditions in table 2 embodiment 14-15

[0031] Example 14 15 Cyanuric chloride / g 1 1 Bisphenol A / g 1.86 1.86 Polyethylene / g 2.7 2.7 Sodium sulfate / g 0.94 0.94 Potassium carbonate / g 0.96 0.96 Reflow time / h 1 1 Polycondensation time / h 24 24 Polycondensation temperature / ℃ 130 260 Yield / g 1.12 1.22

Embodiment 16

[0033] In 100mL of chloroform, add 2.70g of polyethylene, heat, reflux for 1 hour, then add 1.00g of cyanuric chloride, 1.86g of bisphenol A, 0.94g of sodium sulfate and 0.96g of potassium carbonate, and stir for 20 minutes to make several The materials were uniformly mixed, chloroform was removed by rotary evaporation, heated to 180° C., polycondensation reaction was carried out at this temperature, and the reaction time was 24 hours. Soxhlet extraction was carried out using methanol aqueous solution (volume percent concentration: 50%) and dichloromethane successively. 1.28 g of black solid was obtained with a yield of 56.6%.

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Abstract

The invention provides a novel high-efficiency adsorbent and an application thereof, relates to a preparation method and an application of the novel high-efficiency adsorbent, and belongs to the fieldof sewage treatment. The preparation method of the novel high-efficiency adsorbent comprises the following steps: adding polyethylene to a solvent, heating the obtained solution, refluxing the solution, adding sodium sulfate, potassium carbonate, cyanuric chloride and bisphenol A, and carrying out a high-temperature polycondensation reaction to obtain the novel high-efficiency adsorbent. The cyanuric chloride used as a starting material reacts with the bisphenol A through a three-template process to synthesize a novel nitrogen-rich organic porous skeleton polymer. The material is a porous material with an obvious porous structure, has strong adsorption capability for various heavy metal ions, has a high adsorption efficiency, can be used for adsorbing heavy metal ions in water, generateseconomic and environmental benefits, and can meet the needs of environmental protection and green environment.

Description

technical field [0001] The invention relates to a preparation method and application of a novel high-efficiency adsorbent, belonging to the field of sewage treatment. Background technique [0002] Heavy metal ion pollution has become one of the three major water pollution in the world today. Heavy metal ion pollution has the characteristics of long-term, hidden, irreversible and difficult to degrade. Heavy metal ion pollutants in water bodies will accumulate in organisms along the food chain, posing a huge threat to the entire natural ecosystem and human health. There are many kinds of heavy metal ion pollutants, among which chromium, lead, cadmium, copper and nickel ions will cause great harm to the human body. Chromium ions can cause systemic lesions, headaches and weight loss, liver function damage, kidney function damage, etc.; lead ions have toxic effects on many organ systems of the human body, such as the cardiovascular system, red blood cells, reproductive organs, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/26C02F1/28B01J20/30C02F101/20C02F101/22
CPCB01J20/265C02F1/285C02F2101/20C02F2101/22
Inventor 张超智盛慧牛孟霄
Owner NANJING UNIV OF INFORMATION SCI & TECH
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