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Preparation method of one-dimensional porous transition metal oxide nano-material

A technology of transition metals and nanomaterials, which is applied in the field of preparation of one-dimensional porous transition metal oxide nanomaterials, achieving the effects of simple process, good biocompatibility and easy separation

Inactive Publication Date: 2018-12-28
HANGZHOU DIANZI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among them, the synthesis of one-dimensional porous transition metal oxide nanomaterials regulated by silk proteins is rarely reported.

Method used

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  • Preparation method of one-dimensional porous transition metal oxide nano-material
  • Preparation method of one-dimensional porous transition metal oxide nano-material
  • Preparation method of one-dimensional porous transition metal oxide nano-material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] (1) A certain proportion of graphene oxide and 5 wt % silk protein solution ((a) m GO =0, (b) m SF =0, (c) m GO / m SF =1 / 4, (d) m GO / m SF =1 / 8, (e) m GO / m SF =1 / 16, (f) m GO / m SF =1 / 20) mixed with 0.206 g of hydrazine hydrate to adjust the pH to alkaline;

[0032] (2) Add 8mmol FeCl to the above complex 3 ·6H 2 O, continue to stir until completely dissolved;

[0033] (3) Pour the above mixture into the reactor and react at 160°C for 20 hours;

[0034] (4) Naturally cool to room temperature after the reaction, and centrifuge to wash, and finally vacuum-dry the product.

Embodiment 2

[0036] (1) Mix 0.05g of graphene oxide, 25 ml of 5wt% silk protein solution with 1 microgram to 2 grams of hydrazine hydrate, and adjust the pH to be alkaline;

[0037] (2) Add 8mmol FeCl to the above complex 3 ·6H 2 O, continue to stir until completely dissolved;

[0038] (3) Pour the above mixture into the reactor and react at 160°C for 20 hours;

[0039] (4) Naturally cool to room temperature after the reaction, and centrifuge to wash, and finally vacuum-dry the product.

Embodiment 3

[0041] (1) Mix 0.05 g of graphene oxide with 15 ml of 5 wt % silk protein solution and 0.206 g of hydrazine hydrate to adjust the pH to alkaline;

[0042] (2) Add 8mmol FeCl to the above complex 3 ·6H 2 O, continue to stir until completely dissolved;

[0043] (3) Pour the above mixture into the reaction kettle and react at 160°C for 1~36 hours;

[0044] (4) Naturally cool to room temperature after the reaction, and centrifuge to wash, and finally vacuum-dry the product.

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Abstract

The invention discloses a preparation method of a one-dimensional porous transition metal oxide nano-material, and relates to a preparation method of a transition metal oxide nano-material induced byusing a natural protein-graphene composite template. The prepared nano-material has the advantages of uniform size, uniform distribution of porous structures and the like and the preparation method ofthe nano-material is simple and environment-friendly. The preparation method comprises the following steps: forming a silk fibroin nanowire composite graphene template by inducing a mixed solution ofreduced silk protein and graphene oxide through hydrazine hydrate, then under the template, adding transition metal salts, reacting for 1 to 36h at the temperature of 120 to 200 DEG C to collect a product, then placing the product in a vacuum drying oven to be dried after performing the links of ultrasonic treatment, washing, centrifugation (8000rpm) and the like, finally calcining for 3 to 12h at the temperature of 300 to 650 DEG C to obtain the one-dimensional porous transition metal oxide nano-material.

Description

technical field [0001] The invention relates to the field of multifunctional nanomaterials, in particular to a method for preparing a one-dimensional porous transition metal oxide nanomaterial. Background technique [0002] Multifunctional nanomaterials have penetrated into various researches, among which transition metal oxides have been widely studied in various fields, and the demand for them is becoming more and more urgent. Secondly, the preparation of nano-transition metal oxides with specific structures is also of great significance to the research of new materials. Among these materials, one-dimensional self-assembled nano-transition metal oxide materials can be used in various aspects such as nanoelectronics, optoelectronics and biosensing devices because of their wide range of uses, especially arousing the interest of researchers. In addition, materials with porous structure have higher specific surface area, larger pore volume and shorter diffusion path, which is...

Claims

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Application Information

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IPC IPC(8): C01B13/14C01G49/02B82Y40/00
CPCB82Y40/00C01B13/14C01G49/02C01P2002/72C01P2004/03C01P2004/16
Inventor 盛卫琴应智花高荣发
Owner HANGZHOU DIANZI UNIV
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