Unlock instant, AI-driven research and patent intelligence for your innovation.

A high-efficiency adsorbent and its application

An adsorbent and solvent technology, which is applied in the field of preparation of new high-efficiency adsorbents, can solve the problems of low adsorption efficiency and few types of heavy metals, achieve high adsorption efficiency, strong adsorption capacity, and meet the effects of environmental protection and green environment.

Active Publication Date: 2022-03-22
NANJING UNIV OF INFORMATION SCI & TECH
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A high-efficiency adsorbent and its application
  • A high-efficiency adsorbent and its application
  • A high-efficiency adsorbent and its application

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, 5.5...

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%.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
adsorption capacityaaaaaaaaaa
adsorption capacityaaaaaaaaaa
adsorption capacityaaaaaaaaaa
Login to View More

Abstract

The invention provides a novel high-efficiency adsorbent and its application, relates to a preparation method and its application of a novel high-efficiency adsorbent, and belongs to the field of sewage treatment. The new high-efficiency adsorbent is prepared by the following method: adding polyethylene to the solvent, heating, refluxing, then adding sodium sulfate, potassium carbonate, cyanuric chloride and bisphenol A, and performing high-temperature polycondensation reaction to obtain the new high-efficiency adsorption agent. The invention adopts a three-template method, takes cyanuric chloride as a starting material, and reacts with bisphenol A to synthesize a novel nitrogen-rich organic porous skeleton polymer. This material is a porous material with obvious pore structure, which has strong adsorption capacity for various heavy metal ions and high adsorption efficiency. It can be used to adsorb heavy metal ions in water, producing economic 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(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