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Preparation method of sulfydryl-grafted mesoporous organic polymer

A polymer, polymer solution technology, applied in chemical instruments and methods, water/sludge/sewage treatment, adsorbed water/sewage treatment, etc., can solve problems such as health problems, high toxicity and biodegradability, and achieve operational Simple, improved mechanical properties, microscopic morphology and the effect of optimization of dispersion state

Inactive Publication Date: 2020-11-06
NANCHANG HANGKONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

High toxicity and biodegradability of Hg2+, besides volatility and persistence, can cause serious health problems

Method used

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  • Preparation method of sulfydryl-grafted mesoporous organic polymer
  • Preparation method of sulfydryl-grafted mesoporous organic polymer
  • Preparation method of sulfydryl-grafted mesoporous organic polymer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Under oil bath conditions, in a 250 mL two-necked flask with a stirring bar, in N2 atmosphere, add 1.325 g of 1,3,5-benzenetricarboxylic acid chloride, add 1.155 g of biphenyl, and add 2.5 g of chloride Aluminum was dissolved in 90 mL of dichloromethane, and the heating temperature was set to 55 °C. Stir at room temperature for 15 h. After cooling, carry out suction filtration, and then wash the filter residue with dichloromethane, methanol, and deionized water, 4 times for each washing, and pour 25 mL of dichloromethane, methanol, and deionized water into each time. Afterwards, the filter residue was subjected to Soxhlet extraction, the Soxhlet extraction solvent was deionized water, and the extraction time was 12 hours. After the Soxhlet extraction, the polymer was put into a vacuum drying oven at 120° C. to dry to obtain a yellow-brown powder carbonyl-containing organic polymer ( POP-1).

[0038] Put 1.00 g of carbonyl-containing organic polymers in a round-bottome...

Embodiment 2

[0041] Under oil bath conditions, in a 250 mL two-necked flask with a stirring bar, in N2 atmosphere, add 1.325 g of 1,3,5-benzenetricarboxylic acid chloride, add 1.155 g of biphenyl, and add 4 g of chloride Aluminum was dissolved in 90 mL of dichloromethane, and the heating temperature was set to 55 °C. Stir at room temperature for 15 h. After cooling, carry out suction filtration, and then wash the filter residue with dichloromethane, methanol, and deionized water, 4 times for each washing, and pour 25 mL of dichloromethane, methanol, and deionized water into each time. Afterwards, the filter residue was subjected to Soxhlet extraction. The Soxhlet extraction solvent was deionized water, and the extraction time was 12 hours. After the Soxhlet extraction, the polymer was put into a vacuum drying oven to dry at 120° C. to obtain a brown powder carbonyl-containing organic polymer (POP -2).

[0042] Put 1.00 g of carbonyl-containing organic polymer (POP) in a round bottom flas...

Embodiment 3

[0045] Under oil bath conditions, in a 250 mL two-necked flask with a stirring bar, in N2 atmosphere, add 1.325 g of 1,3,5-benzenetricarboxylic acid chloride, add 1.735 g of biphenyl, and add 4 g of chloride Aluminum was dissolved in 90 mL of dichloromethane, and the heating temperature was set to 55 °C. Stir at room temperature for 15 h. After cooling, carry out suction filtration, and then wash the filter residue with dichloromethane, methanol, and deionized water, 4 times for each washing, and pour 25 mL of dichloromethane, methanol, and deionized water into each time. Afterwards, the filter residue was subjected to Soxhlet extraction. The Soxhlet extraction solvent was deionized water, and the extraction time was 12 hours. After the Soxhlet extraction, the polymer was dried in a vacuum oven at 120° C. to obtain a brown powder carbonyl-containing organic polymer.

[0046] Put 1.00 g of carbonyl-containing organic polymer (POP) in a round bottom flask, add 0.6 g of 2-aminoe...

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Abstract

The invention discloses a preparation method of a sulfydryl-grafted mesoporous organic polymer, wherein the method comprises the steps: A) preparing a carbonyl-containing organic polymer (POP) from 1,3,5-benzoyl chloride and biphenyl as raw materials through a Friedel-Crafts acylation reaction, and carrying out Soxhlet extraction and wahsing on the carbonyl-containing organic polymer with distilled water, and drying; B) reacting the extracted carbonyl-containing organic polymer with 2-aminoethanethiol to obtain a sulfydryl-grafted polymer solution containing C=N; and C) adding sodium borohydride into the sulfydryl-grafted polymer solution containing C=N, and violently stirring at room temperature to obtain the sulfydryl-grafted mesoporous organic polymer (POP-SH). The mesoporous organic polymer with stable chemical properties and large specific surface area can be obtained by adding different amounts of aluminum chloride and reactants in different proportions to microscopically regulate and control the mesoporous organic polymer and enabling excess catalyst to make 1,3,5-benzoyl chloride react with biphenyl in a ratio of 2:3.

Description

technical field [0001] The invention relates to the technical field of adsorbent materials in water pollution treatment, in particular to a preparation method of grafted mesoporous organic compounds. Background technique [0002] Heavy metals, also known as trace metals, are among the most persistent pollutants in wastewater. The discharge of a large amount of heavy metals into water bodies will affect the environment and human health. Humans can be exposed to heavy metals through a variety of routes, including inhalation of dust or fumes, ingestion of food and beverages, etc. Some negative effects of heavy metals on aquatic ecosystems include the death of aquatic organisms, algal blooms, the destruction of the ecological environment caused by heavy metal deposition, the inhibition of photosynthesis of plants, and the significant reduction of protein and enzyme activities in animals, which seriously affect the living conditions of animals. . A large amount of heavy metals...

Claims

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Application Information

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IPC IPC(8): B01J20/26B01J20/30C02F1/28
CPCB01J20/262C02F1/288
Inventor 张秀波曹晓燕刘奇张东淮童永芬
Owner NANCHANG HANGKONG UNIVERSITY
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