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

Hyperbranched polyethyleneimine modified carbon fiber adsorbing material for adsorbing indium (III), and preparation method thereof

A polyethyleneimine and adsorption material technology, applied in chemical instruments and methods, adsorption water/sewage treatment, other chemical processes, etc., can solve the problems of easy loss of organic phase, limited adsorption sites, environmental pollution, etc.

Inactive Publication Date: 2020-06-09
LUDONG UNIVERSITY
View PDF2 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the most widely used method for separating and recovering indium is solvent extraction, but solvent extraction uses a large amount of organic solvent and extraction agent in the extraction process, which has the disadvantages of easy loss of organic phase and environmental pollution, and the extraction agent Generally, it is a monofunctional organic molecule, which provides limited adsorption sites and low adsorption capacity.

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
  • Hyperbranched polyethyleneimine modified carbon fiber adsorbing material for adsorbing indium (III), and preparation method thereof
  • Hyperbranched polyethyleneimine modified carbon fiber adsorbing material for adsorbing indium (III), and preparation method thereof
  • Hyperbranched polyethyleneimine modified carbon fiber adsorbing material for adsorbing indium (III), and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A hyperbranched polyethyleneimine modified carbon fiber adsorption material for adsorbing indium (Ⅲ) and its preparation method, the steps include: pretreating the carbon fiber according to the method in the technical solution (a) of the present invention, and according to the technical solution of the present invention The method in (b) prepares carbon oxide fibers, weighs 0.75 g of carbon oxide fibers and 0.75 g of HPEI, places them in a beaker, adds 15 ml of distilled water, and ultrasonically treats them for 1 hour, then transfers them to a reaction kettle, and places the reaction kettle in a vacuum drying oven , reacted at 80°C for 4 hours, cooled naturally after the reaction, filtered, washed with distilled water, and dried in a vacuum oven at 60°C to obtain a hyperbranched polyethyleneimine modified carbon fiber adsorption material.

Embodiment 2

[0017] A hyperbranched polyethyleneimine modified carbon fiber adsorption material for adsorbing indium (Ⅲ) and its preparation method, the steps include: pretreating the carbon fiber according to the method in the technical solution (a) of the present invention, and according to the technical solution of the present invention The method in (b) prepares carbon oxide fibers, weighs 0.5 g of carbon oxide fibers and 1 g of HPEI, puts them in a beaker, adds 15 ml of distilled water, and ultrasonically treats them for 1 hour, then transfers them to a reaction kettle, and places the reaction kettle in a vacuum drying oven , reacted at 80°C for 4 hours, cooled naturally after the reaction, filtered, washed with distilled water, and dried in a vacuum oven at 60°C to obtain a hyperbranched polyethyleneimine modified carbon fiber adsorption material.

Embodiment 3

[0019] A hyperbranched polyethyleneimine modified carbon fiber adsorption material for adsorbing indium (Ⅲ) and its preparation method, the steps include: pretreating the carbon fiber according to the method in the technical solution (a) of the present invention, and according to the technical solution of the present invention The method in (b) prepares carbon oxide fibers, weighs 0.375 grams of carbon oxide fibers and 1.125 grams of HPEI, puts them in a beaker, adds 15 ml of distilled water, and ultrasonically treats them for 1 hour, then transfers them to a reaction kettle, and places the reaction kettle in a vacuum drying oven , reacted at 80°C for 4 hours, cooled naturally after the reaction, filtered, washed with distilled water, and dried in a vacuum oven at 60°C to obtain a hyperbranched polyethyleneimine modified carbon fiber adsorption material.

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

No PUM Login to View More

Abstract

The invention discloses a hyperbranched polyethyleneimine modified carbon fiber adsorbing material for adsorbing indium (III), and a preparation method thereof, and belongs to the field of adsorbing materials, wherein the modified carbon fiber is prepared from active carbon fiber and hyperbranched polyethyleneimine (HPEI). According to the method provided by the invention, carbon fibers are used as a matrix, and are treated with a sulfuric acid and nitric acid mixed solution to obtain oxidized carbon fibers containing a large number of carboxyl groups on the surfaces, the oxidized carbon fibers are modified with HPEI containing a large number of amino groups to further obtain modified carbon fibers with a large number of amino groups, and the coordination capacity of the amino groups and metal ions is used for adsorbing scattered metal indium (III) in an acid solution system, so that the method has the advantages of being high in adsorption rate, good in stability and easy to recycle.

Description

technical field [0001] The invention belongs to the technical field of adsorption materials, and relates to a hyperbranched polyethyleneimine modified carbon fiber adsorption material for adsorbing indium (III) and a preparation method thereof. Background technique [0002] In recent years, the demand for scattered metal indium as a supporting material in the high-tech field has increased year by year. But so far, there are very few independent deposits of indium, and it is generally recovered as an associated metal from the smelting process of polymetallic ores such as lead-zinc ore. At present, the most widely used method for separating and recovering indium is solvent extraction, but solvent extraction uses a large amount of organic solvent and extraction agent in the extraction process, which has the disadvantages of easy loss of organic phase and environmental pollution, and the extraction agent Generally, it is a monofunctional organic molecule, which provides limited...

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 Applications(China)
IPC IPC(8): B01J20/26B01J20/30C02F1/28C02F101/20
CPCB01J20/261B01J20/20C02F1/283C02F1/285C02F2101/20B01J2220/4812B01J2220/4806B01J2220/46
Inventor 刘军深高学珍李长振刘训恿刘毅高太平
Owner LUDONG UNIVERSITY