Water-soluble metal ion loaded hybrid material and method for preparing same

A technology for supporting metals and hybrid materials, applied in the field of water-soluble hybrid materials supporting metal ions and their preparation, can solve the problems of inability to guarantee the stable existence of metal ions, poor water solubility, and difficulty in stable dispersion.

Active Publication Date: 2016-07-20
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As in CN101450385A and CN103785854A, nano-silver and nano-gold particles were prepared by using sodium carboxymethyl cellulose and sodium alginate as stabilizers and reducing agents to reduce precursor silver nitrate and chloroauric acid solutions, proving that the hydroxyl in the polysaccharide is in a certain To a certain extent, it has a certain reducibility to metal ions, and it cannot guarantee that the metal ions in the same system can exist stably
On the other hand, the hybrid materials loade

Method used

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  • Water-soluble metal ion loaded hybrid material and method for preparing same
  • Water-soluble metal ion loaded hybrid material and method for preparing same
  • Water-soluble metal ion loaded hybrid material and method for preparing same

Examples

Experimental program
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Effect test

Embodiment 1

[0066] A water-soluble loaded Ag + The preparation method of the hybrid material, under the condition of 20 ℃, the aqueous solution of sodium alginate with a mass percentage concentration of 0.5% is mixed with the aqueous solution of 3% n-pentylamine with a mass percentage concentration, and the mixture of sodium alginate and n-pentylamine The molar ratio is 1:0.3, the relative molecular weights of sodium alginate and n-pentylamine are 25000 and 87.16 respectively, when mixing with stirring, the pH value of the system is adjusted to 4 with 0.1mol / L HCl solution, and then added to the mixture AgNO with a concentration of 0.005g / mL was added dropwise 3 Aqueous solution, AgNO 3 The molar ratio to sodium alginate is 0.1:1, stir after the dropwise addition, and the duration is 1h, that is, the loaded Ag + The aqueous solution of the hybrid material, its mass percent concentration is 0.5%, continuously stirring and adding precipitant ethanol, precipitant ethanol and loaded Ag + T...

Embodiment 2

[0068] A water-soluble loading Fe 2+ The preparation method of the hybrid material, under the condition of 60 ℃, the aqueous solution of potassium alginate with a mass percent concentration of 0.6% is mixed with the aqueous solution of n-butylamine with a mass percent concentration of 6%, and the mixture of potassium alginate and n-butylamine The molar ratio is 1:0.7, the relative molecular weights of potassium alginate and n-butylamine are 15,000 and 73.14, respectively, when mixing, the pH value of the system is adjusted to 6 with 0.15mol / L HCl solution, and then added to the mixture FeCl with a concentration of 0.2 g / mL was added dropwise 2 Aqueous solution, FeCl 2 The molar ratio of potassium alginate to potassium alginate is 2.5:1. After the dropwise addition, stir for 2 hours to obtain the loaded Fe 2+ The aqueous solution of the hybrid material, whose mass percent concentration is 1.2%, is continuously stirred and added with precipitant acetone, precipitant acetone an...

Embodiment 3

[0070] A water-soluble loading Fe 3+ The preparation method of the hybrid material, under the condition of 25 ℃, the aqueous solution of sodium carboxymethyl cellulose with a mass percentage concentration of 1% and the aqueous solution of polyetheramine D400 with a mass percentage concentration of 4% are mixed, and the carboxymethyl fiber The molar ratio of plain sodium to polyetheramine D400 is 1:0.5, and the relative molecular weights of sodium carboxymethylcellulose and polyetheramine D400 are 19000 and 400 respectively, and when mixed, the mixture is mixed with 0.2mol / L HCl solution. The pH value of the system was adjusted to 6, and then FeCl with a concentration of 0.1 g / mL was added dropwise to the mixed solution 3 Aqueous solution, FeCl 3 The molar ratio to sodium carboxymethyl cellulose is 0.5:1, and after the dropwise addition is completed, stir for 1.5 hours to obtain loaded Fe 3+ The aqueous solution of the hybrid material, whose mass percentage concentration is 1...

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Abstract

The invention relates to a water-soluble metal ion loaded hybrid material and a method for preparing the same. The water-soluble metal ion loaded hybrid material comprises carrier molecules A, stabilizer molecules B and metal ions. The method includes steps of stirring and mixing aqueous solution of the carrier molecules A and aqueous solution of the stabilizer molecules B with each other to obtain mixed solution; regulating a pH (potential of hydrogen) value of the mixed solution; adding metal ion salt solution into the mixed solution drop by drop; continuously stirring the mixed solution and the metal ion salt solution; adding precipitants into the mixed solution and the metal ion salt solution; filtering the mixed solution and the metal ion salt solution to obtain precipitates; drying the precipitates by the aid of a vacuum drying oven to obtain the dry-state metal ion loaded hybrid material. The water-soluble metal ion loaded hybrid material and the method have the advantages that the metal ions in the metal ion loaded hybrid material are stably and effectively connected onto molecular chains of the carrier molecules in ionic bond and coordination bond forms, so that the water-soluble metal ion loaded hybrid material is good in water solubility, and the metal ion loading capacity of the water-soluble metal ion loaded hybrid material can be adjusted; the method for preparing the hybrid material is free of pollution and easy to implement, and products rarely contain impurities; the water-soluble metal ion loaded hybrid material prepared by the aid of the method can be widely applied to the aspects such as antibacterial finishing liquid, self-assembly stock solution and intermediates prepared from metal nano-materials.

Description

technical field [0001] The invention relates to a water-soluble hybrid material loaded with metal ions and a preparation method thereof, in particular to a stable water-soluble hybrid material loaded with metal ions and a preparation method thereof. Background technique [0002] Hybrid materials loaded with metal ions refer to the bonding of metal ions to carrier molecules through chemical bonds or physical bonds. This type of hybrid materials is widely used in metal ion adsorption materials, catalytic materials, self-assembly units, antibacterial materials and flame retardant materials etc. [0003] The hydroxyl group, amino group and carboxyl group in the carrier molecule have a good chelating effect on metal ions, and can effectively adsorb or trap metal ions in the solution. Based on this principle, researchers have prepared many hybrid materials loaded with metal ions. As proposed in CN102430391A, metal salts are added in the chitosan acetic acid solution to make the ...

Claims

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Application Information

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IPC IPC(8): C08B37/04C08B11/12C08B37/08C08G81/00C08G81/02C08F120/56C08F120/06C08F8/42
CPCC08B11/12C08B37/003C08B37/0084C08F8/42C08G81/00C08G81/025C08F120/56C08F120/06
Inventor 孙宾纪晓寰朱美芳江晓泽周哲陈文萍
Owner DONGHUA UNIV
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