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a fe 2 o 3 Preparation method of /ag/ phenolic resin sandwich structure nanodisc

A phenolic resin and nanodisc technology, applied in nanotechnology and other directions, can solve the problems of rare nanodisc structure composite materials, and achieve the effects of easy implementation of control conditions and means, good reproducibility of product appearance, and stable structure.

Active Publication Date: 2022-07-22
HEBEI UNIV OF ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the reported metal oxide / noble metal / polymer nanocomposites are mainly in the form of microspheres or flower-like structures, and nanodisk-like structure composites are relatively rare.

Method used

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  • a fe <sub>2</sub> o <sub>3</sub> Preparation method of /ag/ phenolic resin sandwich structure nanodisc
  • a fe <sub>2</sub> o <sub>3</sub> Preparation method of /ag/ phenolic resin sandwich structure nanodisc
  • a fe <sub>2</sub> o <sub>3</sub> Preparation method of /ag/ phenolic resin sandwich structure nanodisc

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Embodiment 1

[0049] This embodiment provides a Fe 2 O 3 The preparation method of / Ag / phenolic resin sandwich structure nanodisks comprises the following steps:

[0050] (1) Weigh 0.545g of ferric chloride hexahydrate, add 1.4mL of ultrapure water, 20mL of anhydrous ethanol, 2.5g of anhydrous sodium acetate, the above mixture is transferred to a 50mL stainless steel hydrothermal kettle, heated to 170°C and reacted for 12h and then separated washing. Add 90mL ultrapure water and 10mL polyacrylic acid aqueous solution (M W =1800, 7.2 mg / mL), stirred with a magnetic sub for 24 h, centrifuged and washed, and dispersed in 30 mL of ultrapure water (about 5 mg / mL). figure 1 Fe obtained for Example 1 2 O 3 TEM image of nanodisks, Fe 2 O 3 The side length of the nanodisk is 150 nm.

[0051] (2) Take 25mg Fe 2 O 3 Add 3 mL of ultrapure water, 20 mL of absolute ethanol, 1 mL of ammonia water, and 50 μL of ethyl orthosilicate to react at room temperature for 30 min at room temperature, and w...

Embodiment 2

[0057] This embodiment provides a Fe 2 O 3 The preparation method of / Ag / phenolic resin sandwich structure nanodisks comprises the following steps:

[0058] (1) Weigh 0.545g of ferric chloride hexahydrate, add 1.4mL of ultrapure water, 20mL of anhydrous ethanol, 2.5g of anhydrous sodium acetate, the above mixture is transferred to a 50mL stainless steel hydrothermal kettle, heated to 170°C and reacted for 12h and then separated washing. Add 90mL ultrapure water and 10mL polyacrylic acid aqueous solution (M W =1800, 7.2 mg / mL), stirred with a magnetic sub for 24 h, centrifuged and washed, and dispersed in 30 mL of ultrapure water (about 5 mg / mL). In this step, Fe surface-modified polyacrylic acid is obtained 2 O 3 Nanodisc.

[0059] (2) Take 25mg Fe 2 O 3 Add 3 mL of ultrapure water, 20 mL of absolute ethanol, 1 mL of ammonia water, and 50 μL of ethyl orthosilicate to react at room temperature for 30 min at room temperature, and wash with ethanol by centrifugation. Fe ...

Embodiment 3

[0065] This embodiment provides a Fe 2 O 3 The preparation method of / Ag / phenolic resin sandwich structure nanodisks comprises the following steps:

[0066] (1) Weigh 0.545g of ferric chloride hexahydrate, add 1.4mL of ultrapure water, 20mL of anhydrous ethanol, 2.5g of anhydrous sodium acetate, the above mixture is transferred to a 50mL stainless steel hydrothermal kettle, heated to 170°C and reacted for 12h and then separated washing. Add 90mL ultrapure water and 10mL polyacrylic acid aqueous solution (M W =1800, 7.2 mg / mL), stirred with a magnetic sub for 24 h, centrifuged and washed, and dispersed in 30 mL of ultrapure water (about 5 mg / mL). In this step, Fe surface-modified polyacrylic acid is obtained 2 O 3 Nanodisc.

[0067] (2) Take 25mg Fe 2 O 3 Add 3 mL of ultrapure water, 20 mL of absolute ethanol, 1 mL of ammonia water, and 50 μL of ethyl orthosilicate to react at room temperature for 30 min at room temperature, and wash with ethanol by centrifugation. Fe ...

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Abstract

The present invention relates to a kind of Fe 2 O 3 Preparation method of / Ag / phenolic resin sandwich structure nanodisk, which adopts Fe 2 O 3 It is a rigid template, which is successively wrapped with silica, modified by coupling agent, wrapped with Au layer, wrapped with phenolic resin RF, etched silica, and redox deposited Ag element and adsorbed on the surface of the Au layer. The invention is a Fe with good reproducibility, controllable product morphology, stable structure and adjustable Ag interlayer density. 2 O 3 The preparation method of / Ag / phenolic resin sandwich structure nanodisc material fills the technical gap of nanodisc metal oxide / precious metal / polymer nanocomposite materials.

Description

technical field [0001] The invention relates to the technical field of nanocomposite material synthesis, in particular to a kind of Fe 2 O 3 Preparation method of / Ag / phenolic resin sandwich structure nanodisk. Background technique [0002] Nanocomposites not only have special small-scale structures, but also have various properties contained in different materials, so nanocomposites have a wide range of application backgrounds in the fields of catalysis, energy, sensing and biology. [0003] Iron oxide nanomaterials have huge specific surface area, low price and abundant reserves. They have attracted much attention in the fields of magnetism, catalysis, drug carrier, adsorption, sewage treatment and optics. Because of its superconducting, antibacterial, anti-inflammatory, optical and cosmetic properties, silver nanomaterials are used in fields such as microelectronics, surface-enhanced Raman, and antibacterial beauty. The composite of iron oxide and silver nanomaterials ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L61/12C08K3/22C08K3/08B82Y40/00
CPCC08K3/22C08K3/08B82Y40/00C08K2003/2272C08K2003/0806C08L61/12
Inventor 张晓亮武春霞车红卫母静波张志晓
Owner HEBEI UNIV OF ENG
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