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a fe 3 o 4 @Hemoglobin core-shell structure material, preparation method and application

A technology of core-shell structure and hemoglobin, applied in the direction of electrolysis components, electrodes, electrolysis process, etc., can solve the problems of complex hemoglobin magnetic molecular imprinting polymer system, difficulty in clarifying the interaction relationship of various material components, and difficulty in industrial promotion and application. , to achieve the effect of improving the efficiency of electrochemical oxygen evolution, improving the efficiency of synergy, and inhibiting the generation of hydrogen peroxide

Active Publication Date: 2022-08-09
JINLING INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in general, the currently reported binding process of hemoglobin and magnetic nanoparticles involves a multi-step chemical bridging and coupling process, which is relatively complicated and difficult for industrial promotion and application; and its application mainly involves the field of selective recognition of molecules , sensors, and dye adsorption. In fact, the three fields of molecular selective recognition, sensors, and dye adsorption are completely different research fields from photocatalytic water analysis and oxygen reaction. Their internal mechanisms and mechanisms are completely different. Difficult to determine the hemoglobin / Fe reported in these studies 3 o 4 Whether the complex and the hemoglobin magnetic molecularly imprinted polymer and other products have photocatalytic water resolving oxygen reaction activity; in addition, because the system of this kind of hemoglobin magnetic molecularly imprinted polymer is relatively complex, it is still difficult to clarify the interaction between the various components relation

Method used

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  • a fe <sub>3</sub> o <sub>4</sub> @Hemoglobin core-shell structure material, preparation method and application
  • a fe <sub>3</sub> o <sub>4</sub> @Hemoglobin core-shell structure material, preparation method and application
  • a fe <sub>3</sub> o <sub>4</sub> @Hemoglobin core-shell structure material, preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Example 1 Fe 3 O 4 @Preparation method of hemoglobin core-shell structure material

[0039] S1, with FeCl 3 .6H 2 O as raw material, 50 mL of deionized water as solvent, reactant FeCl 3 .6H 2 O concentration is 0.8 mol·L -1 , sodium citrate and sodium polyacrylate as surfactants, the concentration of sodium citrate is 0.05mol·L -1 , the concentration of sodium polyacrylate is 0.5×10 -3 mol·L -1 , the water temperature is 180 o C, the hydrothermal time is 20h, after the hydrothermal reaction is over, place it at the bottom of the container with a magnet, Fe 3 O 4 The microbeads gather at the bottom of the container, and the reaction solution in the upper part of the container is poured out, and Fe with a diameter of about 180 nm is prepared in the container. 3 O 4 microbeads.

[0040] S2, the Fe prepared in step S1 3 O 4 The microbeads were immersed in a 10 mg / mL hemoglobin aqueous solution (pH=7). At room temperature, the hemoglobin solution was immersed ...

Embodiment 2

[0051] Example 2 Fe 3 O 4 @Preparation method of hemoglobin core-shell structure material

[0052] S1, with FeCl 3 .6H 2 O as raw material, 50 mL of deionized water as solvent, reactant FeCl 3 .6H 2 The concentration of O is 0.8mol·L-1, and the concentration of sodium citrate is 0.05mol·L -1 , the concentration of sodium polyacrylate is 0.5×10 -3 mol·L -1 , the water temperature is 180 o C, the hydrothermal time is 24h, after the hydrothermal reaction is over, place it at the bottom of the container with a magnet, Fe3O4 microbeads gather at the bottom of the container, pour out the reaction solution at the top of the container, and the Fe3O4 microbeads in the container are immediately prepared. 3 O 4 microbeads.

[0053] S2, the Fe prepared in step S1 3 O 4 The microbeads were immersed in a 10 mg / mL hemoglobin aqueous solution (pH=7). At room temperature, the hemoglobin solution was immersed in superparamagnetic nano Fe 3 O 4 The surface of the microbeads was sel...

Embodiment 3

[0061] Example 3 Fe 3 O 4 @Preparation method of hemoglobin core-shell structure material

[0062] S1, with FeCl 3 .6H 2 O as raw material, 50 mL of deionized water as solvent, reactant FeCl 3 .6H 2 The concentration of O is 0.8mol·L-1, and the concentration of sodium citrate is 0.05mol·L -1 , the concentration of sodium polyacrylate is 0.5×10 -3 mol·L -1 , the water temperature is 180 o C, the hydrothermal time is 24h, after the hydrothermal reaction is over, place it at the bottom of the container with a magnet, Fe 3 O 4 The microbeads gather at the bottom of the container, and the reaction solution in the upper part of the container is poured out, and the Fe obtained in the container is 3 O 4 microbeads.

[0063] S2, the Fe prepared in step S1 3 O 4 The microbeads were immersed in a 10 mg / mL hemoglobin aqueous solution (pH=7). At room temperature, the hemoglobin solution was immersed in superparamagnetic nano Fe 3 O 4 The surface of the microbeads was self-a...

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Abstract

The invention discloses a Fe 3 O 4 @Hemoglobin core-shell structure material and preparation method, the core of the material is nano-Fe 3 O 4 Microbeads with hemoglobin shell, Fe 3 O 4 The @hemoglobin core-shell structure material can be used as an electrocatalytic material for water splitting to produce oxygen, while suppressing the generation of hydrogen peroxide in the system. The preparation method is simple and feasible, and does not require special equipment and harsh conditions.

Description

technical field [0001] The invention relates to the cross-technical field of inorganic nano-magnetic materials, biological materials and energy materials, in particular to a Fe 3 O 4 @Hemoglobin core-shell structure material, preparation method and application. Background technique [0002] The overuse of fossil fuels has led to a global energy crisis and environmental problems. Hydrogen is an ideal clean energy with high energy density. Hydrogen production from water by electrocatalytic water splitting and utilization is an effective measure to solve the energy crisis and environmental problems. Studies at home and abroad have shown that the reasons that affect the improvement of electrocatalytic water splitting efficiency are, on the one hand, due to the high kinetic barrier of the oxygen evolution reaction at the anode, which reduces the overall efficiency of water splitting, and seriously inhibits the hydrogen evolution half-reaction at the cathode. One of the bottlen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25B11/095C25B1/04
CPCY02E60/36
Inventor 张文妍王威杨晓莉胡颖飞管航敏郝凌云
Owner JINLING INST OF TECH
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