Metalloporphyrin terephthalate photo-thermal cellulose as well as preparation method and application thereof

A technology of terephthalate and terephthalic acid, which is applied in the field of antibacterial material preparation and can solve the problems that functional cellulose has not been reported.

Active Publication Date: 2021-05-14
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, no functional cellulose with sulfur-bonded cross-linked bimetallic

Method used

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  • Metalloporphyrin terephthalate photo-thermal cellulose as well as preparation method and application thereof
  • Metalloporphyrin terephthalate photo-thermal cellulose as well as preparation method and application thereof
  • Metalloporphyrin terephthalate photo-thermal cellulose as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Example 1 (the optimal preparation scheme of CMF@PCNCu): the leaves of Chlorophytum chinensis were washed, chopped and dried. Weigh 2g of Chlorophytum leaf fragments and immerse in NaOH (150mL, 5wt%) aqueous solution and reflux at 70°C for 4h to remove lignin and other impurities in the cellulose. After the reaction, the cellulose was washed with deionized water and ethanol until the solution was neutral. The treated cellulose was immersed in NaClO 2 solution (150 mL, 2 wt%), refluxed at 60° C. for 3 h and cooled to room temperature. The cellulose in the solution was washed with deionized water and ethanol several times, and then dried in a forced air drying oven at 60°C.

[0031] In 20 mL, add 10 μmol of cellulose extracted from Chlorophytum leaves, 600 μmol of terephthalic acid and 800 μmol of sodium hypophosphite (the molar ratio of cellulose to terephthalic acid is 1:60; the molar ratio of cellulose to sodium hypophosphite is 1:80), stirred for the first time in ...

Embodiment 2

[0032] Embodiment 2: Wash and chop the leaves of Chlorophytum orchids and dry them. Weigh 2g of Chlorophytum leaf fragments and immerse in NaOH (150mL, 5wt%) aqueous solution and reflux at 70°C for 4h to remove lignin and other impurities in the cellulose. After the reaction, the cellulose was washed with deionized water and ethanol until the solution was neutral. The treated cellulose was immersed in NaClO 2 solution (150 mL, 2 wt%), refluxed at 60° C. for 3 h and cooled to room temperature. The cellulose in the solution was washed with deionized water and ethanol several times, and then dried in a forced air drying oven at 60°C.

[0033] In 20 mL, add 10 μmol of cellulose extracted from Chlorophytum leaves, 200 μmol of terephthalic acid and 800 μmol of sodium hypophosphite (the molar ratio of cellulose to terephthalic acid is 1:20; the molar ratio of cellulose to sodium hypophosphite is 1:80), stirred for the first time in an oil bath at 140°C for 8h to carry out esterifi...

Embodiment 3

[0034] Embodiment 3: Wash and chop the leaves of Chlorophytum orchids and dry them. Weigh 2g of Chlorophytum leaf fragments and immerse in NaOH (150mL, 5wt%) aqueous solution and reflux at 70°C for 4h to remove lignin and other impurities in the cellulose. After the reaction, the cellulose was washed with deionized water and ethanol until the solution was neutral. The treated cellulose was immersed in NaClO 2 solution (150 mL, 2 wt%), refluxed at 60° C. for 3 h and cooled to room temperature. The cellulose in the solution was washed with deionized water and ethanol several times, and then dried in a forced air drying oven at 60°C.

[0035] In 20 mL, add 10 μmol of cellulose extracted from Chlorophytum leaves, 600 μmol of terephthalic acid and 800 μmol of sodium hypophosphite (the molar ratio of cellulose to terephthalic acid is 1:60; the molar ratio of cellulose to sodium hypophosphite is 1:80), stirred for the first time in 140 ℃ oil bath for 8h to carry out esterification...

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Abstract

The invention belongs to the field of antibacterial material preparation, and relates to metalloporphyrin terephthalate photo-thermal cellulose as well as a preparation method and application thereof. The metalloporphyrin terephthalic acid esterified cellulose is successfully prepared by taking cellulose as a raw material, fusing a porphyrin structure to induce assembly through a covalent structure of terephthalic acid and a metal coordination concept. Meanwhile, a metal complex is subjected to surface modification through an S- or -S-S- bond, and the obtained metalloporphyrin terephthalate photo-thermal cellulose is applied to adsorption and inhibition of bacteria.

Description

technical field [0001] The invention belongs to the field of preparation of antibacterial materials, and relates to metalloporphyrin terephthalate photothermal cellulose, a preparation method and application in aspects such as bacterial adsorption and inhibition. Background technique [0002] Cellulose exists widely in nature. As a biomacromolecule, cellulose has the advantages of being renewable, biodegradable and nontoxic. Cellulose has potential applications in heavy metal adsorption, food packaging, and biomedical devices. Finding appropriate methods to construct functional cellulose structures has received increasing attention. The polyhydroxyl structure of cellulose can be covalently combined with organic compounds to form nanomaterials for bacterial inhibition [Zhou, X.L.; Fu, Y.Q.; Chen, L.D.; Wang, R.B.; Wang, X.; Miao, Y.C.; Ji, X.X.; Bian, H.Y.; Dai, H.Q. Diisocyanatemodifiable commercial filter paper with tunable hydrophobicity, enhanced wettensile strength an...

Claims

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Application Information

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IPC IPC(8): C08B3/12C08B15/05C08B15/06A01N43/90A01P1/00
CPCC08B3/12C08B15/05C08B15/06A01N43/90
Inventor 陈秋云穆威宇
Owner JIANGSU UNIV
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