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CdZnS superfine nanoparticle loaded In2O3 fusiform nanorod composite material, and preparation method and application thereof

A technology of ultra-fine nano and composite materials, which is applied in the field of photocatalyst material preparation and can solve problems such as instability

Pending Publication Date: 2021-09-14
NINGBO UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Porous In derived from MOFs 2 o 3 Recombination with narrow-bandgap semiconductors not only significantly widens the In 2 o 3 The visible light absorption range also significantly improves the separation and transport of photogenerated electron-hole pairs, thereby significantly improving the photocatalytic activity, but the currently reported MOFs-derived photocatalysts are often fragile and unstable in photocatalytic reactions.

Method used

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  • CdZnS superfine nanoparticle loaded In2O3 fusiform nanorod composite material, and preparation method and application thereof
  • CdZnS superfine nanoparticle loaded In2O3 fusiform nanorod composite material, and preparation method and application thereof
  • CdZnS superfine nanoparticle loaded In2O3 fusiform nanorod composite material, and preparation method and application thereof

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Experimental program
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Effect test

Embodiment 1

[0053] S1. Dissolve 60 mg of indium nitrate and 65 mg of 2-aminoterephthalic acid in a reaction flask, react in an oil bath at 120 °C for 0.5 h, take it out, clean it once with ethanol, dry it by centrifugation, and place it in a muffle furnace. Fusiform mesoporous In was obtained by calcination at 500 ℃ in air atmosphere 2 O 3 Nano stave;

[0054] S2, take 20 mg of fusiform mesoporous In 2 O 3 The nanorods were mixed with 10 mg of cadmium acetate and 4.4 mg of zinc acetate, then immersed in 5 ml of deionized water, and then added with 20 mg of sodium sulfide, reacted in an oil bath at 80 °C for 2 h, taken out and cleaned with ethanol, and centrifuged and dried to obtain In 2 O 3 / CdZnS heterocomposite material, the loading of CdZnS ultrafine nanoparticles is 5wt%, the average particle size is 5nm, and the fusiform mesoporous In 2 O 3 The nanorods have an average diameter of 1 μm and an average pore size of 15 nm.

Embodiment 2

[0056] S1. Dissolve 60 mg of indium nitrate and 65 mg of 2-aminoterephthalic acid in a reaction flask, react in an oil bath at 120 °C for 0.5 h, take it out, clean it once with ethanol, dry it by centrifugation, and place it in a muffle furnace. Fusiform mesoporous In was obtained by calcination at 500 ℃ in air atmosphere 2 O 3 Nano stave;

[0057] S2, take 20 mg of fusiform mesoporous In 2 O 3 The nanorods were mixed with 15 mg of cadmium acetate and 8 mg of zinc acetate, then immersed in 5 ml of deionized water, and then added with 20 mg of sodium sulfide, reacted in an oil bath at 80 °C for 2 h, taken out and cleaned with ethanol, and centrifuged and dried to obtain In 2 O 3 / CdZnS heterocomposite material, the loading of CdZnS ultrafine nanoparticles is 8wt%, the average particle size is 5nm, and the fusiform mesoporous In 2 O 3 The nanorods have an average diameter of 1 μm and an average pore size of 15 nm.

Embodiment 3

[0059] S1. Dissolve 60 mg of indium nitrate and 65 mg of 2-aminoterephthalic acid in a reaction flask, react in an oil bath at 120 °C for 0.5 h, take it out, clean it once with ethanol, dry it by centrifugation, and place it in a muffle furnace. Fusiform mesoporous In was obtained by calcination at 500 ℃ in air atmosphere 2 O 3 Nano stave;

[0060] S2, take 20 mg of fusiform mesoporous In 2 O 3 The nanorods were mixed with 18 mg of cadmium acetate and 10 mg of zinc acetate, then immersed in 5 ml of deionized water, and then added with 20 mg of sodium sulfide, reacted in an oil bath at 80 °C for 2 h, taken out and cleaned with ethanol, and centrifuged and dried to obtain In 2 O 3 / CdZnS heterocomposite material, the loading of CdZnS ultrafine nanoparticles is 10wt%, the average particle size is 5nm, and the fusiform mesoporous In 2 O 3 The nanorods have an average diameter of 1 μm and an average pore size of 15 nm.

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Abstract

The invention belongs to the technical field of preparation of photocatalyst materials, and relates to a CdZnS superfine nanoparticle loaded In2O3 fusiform nanorod composite material, and a preparation method and application thereof. The heterogeneous optical composite material for catalyzing hydrogen production, which is prepared by loading CdZnS superfine nanoparticles on fusiform mesoporous In2O3 nanorods, can be stably applied to hydrogen production by photocatalytic decomposition of water, solves the instability caused by photocorrosion of CdZnS in a photocatalytic process, not only widens the light absorption range of a photocatalytic material, but also greatly enhances the catalytic hydrogen production efficiency. And the whole preparation process is simple, the reaction is easy to control, the repeatability is very good, and the industrial production value is very high.

Description

technical field [0001] The invention belongs to the technical field of preparation of photocatalyst materials, and relates to a CdZnS ultrafine nanoparticle-loaded In 2 O 3 A shuttle-shaped nanorod composite material and its preparation method and application. Background technique [0002] With the rapid economic development and the increasingly serious energy crisis, in order to better achieve the goals of "carbon peaking" and "carbon neutrality", it is urgent to develop clean and renewable resources. Hydrogen, as a non-polluting, high-calorie energy source, and solar energy, an inexhaustible natural resource, using solar energy to split water to produce clean and high-value hydrogen has long been considered the most One of the strategies that hope to produce renewable clean energy in a sustainable way. Generally, such photocatalytic water splitting process requires efficient and economical photocatalysts. [0003] Indium oxide (In 2 O 3 ), an n-type semiconductor pho...

Claims

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Application Information

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IPC IPC(8): B01J27/04B01J35/10B01J37/08B01J37/20C01B3/04
CPCB01J27/04B01J37/086B01J37/20C01B3/042B01J35/23B01J35/647B01J35/39Y02E60/36
Inventor 侯慧林杨洪利杨为佑
Owner NINGBO UNIVERSITY OF TECHNOLOGY
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