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Preparation method of collagen polypeptide nanosphere grafted hydrated 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: 2020-07-28
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 nanosphere grafted hydrated titanium oxide adsorption material
  • Preparation method of collagen polypeptide nanosphere grafted hydrated titanium oxide adsorption material
  • Preparation method of collagen polypeptide nanosphere grafted hydrated titanium oxide adsorption material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A method for preparing collagen polypeptide nanospheres grafted with hydrated titanium oxide adsorption material includes the following steps:

[0032] Step 1: Take waste tannery collagen to crush and hydrolyze to obtain hydrolyzed collagen polypeptide, take the hydrolyzed collagen polypeptide and use the gel-sol method to obtain the collagen polypeptide nanosphere suspension;

[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 4h, and use Na 2 CO 3 Adjust the pH to 3.5, seal the container, place it in a shaker, react for 4 hours at a temperature of 45°C, then stand still at room temperature for 3 hours, centrifuge, discard the supernatant, wash the remainder and freeze After drying, the collagen polypeptide nanospheres are grafted with hydrated titanium oxide adsorption material; the mass ratio of the hydrolyzed collagen polypeptide in the collagen polypeptide nan...

Embodiment 2

[0037] A method for preparing collagen polypeptide nanospheres grafted with hydrated titanium oxide adsorption material includes the following steps:

[0038] Step 1: Take waste tannery collagen to crush and hydrolyze to obtain hydrolyzed collagen polypeptide, take the hydrolyzed collagen polypeptide and use the gel-sol method to obtain the collagen polypeptide nanosphere suspension;

[0039] Step 2. Add the collagen polypeptide nanosphere suspension to the container, then add the masking agent tartaric acid and titanium sulfate solution, stir for 5h, and use NaHCO 3 Adjust the pH to 3.5, seal the container, place it in a shaker, react for 3 hours at a temperature of 40°C, then stand for 2 hours at room temperature, centrifuge, discard the supernatant, and wash the remainder and freeze After drying, the collagen polypeptide nanospheres are grafted with hydrated titanium oxide adsorption material; the mass ratio of the hydrolyzed collagen polypeptide in the collagen polypeptide nanos...

Embodiment 3

[0042] A method for preparing collagen polypeptide nanospheres grafted with hydrated titanium oxide adsorption material includes the following steps:

[0043] Step 1: Take waste tannery collagen to crush and hydrolyze to obtain hydrolyzed collagen polypeptide, take the hydrolyzed collagen polypeptide and use the gel-sol method to obtain the collagen polypeptide nanosphere suspension;

[0044] Step 2. Add the collagen polypeptide nanosphere suspension to the container, then add the masking agent oxalic acid and titanium sulfate solution, stir for 3h, adjust the pH to 3.5 with ammonia water, seal the container, place it in a shaker, React at 42℃ for 5 hours, then stand at room temperature for 5 hours, centrifuge, discard the supernatant, wash the remainder and freeze-dry to obtain the collagen peptide nanosphere grafted hydrated titanium oxide adsorbent; collagen peptide The mass ratio of the hydrolyzed collagen polypeptide in the nanosphere suspension to the titanium sulfate in the ...

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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, relates to a preparation method for processing specific uranyl ion materials, and particularly relates to a preparation method for grafting hydrated titanium with collagen polypeptide nanospheres. Background technique [0002] The effective recovery of uranium from industrial wastewater is an important issue for the nuclear industry and related industries. The waste water produced during the production of wet nuclear fuel contains not only uranium but also a large amount of fluorine. Therefore, how to effectively recover uranium from uranium fluoride wastewater with high fluorine content is a technical problem that needs to be solved in nuclear fuel production. As an inorganic adsorbent, hydrated titanium oxide has high adsorption capacity and high selectivity for heavy metal uranium. Many countries use it to extrac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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