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Preparation method of collagen polypeptide nanospheres grafted hydration titanium oxide adsorption material

A collagen polypeptide and adsorption material technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of cumbersome and difficult preparation process, and achieve the effects of easy availability of raw materials, simple production process, and easy promotion.

Inactive Publication Date: 2018-08-28
SOUTHWEAT UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that the raw materials required for the hydrated titanium composite prepared by the gel-sol method are complex and diverse, and the preparation process is cumbersome and difficult to control.

Method used

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  • Preparation method of collagen polypeptide nanospheres grafted hydration titanium oxide adsorption material
  • Preparation method of collagen polypeptide nanospheres grafted hydration titanium oxide adsorption material
  • Preparation method of collagen polypeptide nanospheres grafted hydration titanium oxide adsorption material

Examples

Experimental program
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Effect test

Embodiment 1

[0031] A preparation method of collagen polypeptide nanosphere grafted hydrated titanium oxide adsorption material, comprising the following steps:

[0032] Step 1, taking tanning waste collagen, pulverizing and hydrolyzing it to obtain hydrolyzed collagen polypeptide, taking the hydrolyzed collagen polypeptide and adopting a gel-sol method to obtain a suspension of collagen polypeptide nanospheres;

[0033] Step 2: Add the collagen polypeptide nanosphere suspension to the container, then add the masking agent formic acid and titanium sulfate solution, stir for 4 hours, and use Na 2 CO 3Adjust the pH to 3.5, seal the container, place it in a shaker, react at a temperature of 45°C for 4 hours, then let it stand at room temperature for 3 hours, centrifuge, discard the supernatant, and freeze the residue after washing Drying, the collagen polypeptide nanosphere grafted hydrated titanium oxide adsorption material is obtained; the mass ratio of the hydrolyzed collagen polypeptide ...

Embodiment 2

[0037] A preparation method of collagen polypeptide nanosphere grafted hydrated titanium oxide adsorption material, comprising the following steps:

[0038] Step 1, taking tanning waste collagen, pulverizing and hydrolyzing it to obtain hydrolyzed collagen polypeptide, taking the hydrolyzed collagen polypeptide and adopting a gel-sol method to obtain a suspension of collagen polypeptide nanospheres;

[0039] Step 2: Add the suspension of collagen polypeptide nanospheres to the container, then add the masking agent tartaric acid and titanium sulfate solution, stir for 5 hours, and use NaHCO 3 Adjust the pH to 3.5, seal the container, place it in a shaker, react at a temperature of 40°C for 3 hours, then let it stand at room temperature for 2 hours, centrifuge, discard the supernatant, and freeze the residue after washing Drying, the collagen polypeptide nanosphere grafted hydrated titanium oxide adsorption material is obtained; the mass ratio of the hydrolyzed collagen polypept...

Embodiment 3

[0042] A preparation method of collagen polypeptide nanosphere grafted hydrated titanium oxide adsorption material, comprising the following steps:

[0043] Step 1, taking tanning waste collagen, pulverizing and hydrolyzing it to obtain hydrolyzed collagen polypeptide, taking the hydrolyzed collagen polypeptide and adopting a gel-sol method to obtain a suspension of collagen polypeptide nanospheres;

[0044] Step 2: Add the suspension of collagen polypeptide nanospheres into the container, then add the masking agent oxalic acid and titanium sulfate solution, stir for 3 hours, adjust the pH to 3.5 with ammonia water, seal the container, place it in a shaker, and set it at a temperature of React at 42°C for 5 hours, then stand at room temperature for 5 hours, centrifuge, discard the supernatant, and freeze-dry the residue after washing to obtain the collagen polypeptide nanosphere grafted hydrated titanium oxide adsorption material; collagen polypeptide The mass ratio of the hyd...

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Abstract

The invention discloses a preparation method of collagen polypeptide nano-sphere grafted hydration titanium oxide adsorption material, which comprises the following steps of: crushing and hydrolyzingthe waste collagen of tanning to obtain the hydrolyzed collagen polypeptide, taking the hydrolyzed collagen polypeptide and using a gel-sol method to obtain collagen polypeptide nanosphere suspension;adding the collagen polypeptide nano-ball suspension into a container, then adding montmorillonite agent and the titanic acid salt solution, stirring for 2-5 hours, adjusting the pH to 3-4 by using ahomogenizer, sealing the container, placing the container in a shaking table, reacting for 2-5 hours at the temperature of 40-45 DEG C, standing for 1-10h at room temperature, centrifugally separating, removing the supernatant, and freeze-drying the residual to obtain the collagen polypeptide nanospheres grafted hydration titanium oxide adsorption material. The method overcomes the defect that the hydration titanium oxide exhibits poor mechanical property since the application of hydrated titanium oxide in the field of inorganic absorption. The prepared collagen polypeptide nano-ball graftedhydration titanium is used for specific recovery treatment of uranyl ions by utilizing high adsorption capacity and high selectivity of hydrated titanium to uranyl ions.

Description

technical field [0001] The invention belongs to the rational and efficient use of waste biomass resources for the recovery and treatment of radioactive heavy metals, and relates to a preparation method for processing specific uranyl ion materials, in particular to a preparation method for collagen polypeptide nanospheres grafted with hydrated titanium. Background technique [0002] Effective recovery of uranium from industrial wastewater is an important issue in the nuclear industry and related industries. The wastewater generated during wet nuclear fuel production contains not only uranium but also a large amount of fluorine. Therefore, how to effectively recover uranium from fluorine-uranium wastewater with high fluorine content is a technical problem to be solved in nuclear fuel production. As an inorganic adsorbent, hydrated titanium oxide exhibits high adsorption capacity and high selectivity for heavy metal uranium, and many countries use it to adsorb and extract uran...

Claims

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Application Information

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IPC IPC(8): B01J20/30B01J20/24
CPCB01J20/06B01J20/24B01J20/28007B01J2220/4875
Inventor 周建余杰苏林竹文坤
Owner SOUTHWEAT UNIV OF SCI & TECH
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