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A kind of preparation method and application of cadmium sulfide surface anchored copper atom cluster

A technology of copper atoms and cadmium sulfide, which is applied in chemical instruments and methods, carbon monoxide, and hydrocarbon production from carbon oxides, etc., can solve the problems of high cost, unfavorable wide-scale promotion and use, and scarce sources, so as to prolong life and promote photoelectricity. Stabilization, separation-promoting and transport-promoting effects

Active Publication Date: 2022-07-29
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

However, it should be pointed out that most of the current studies on carrier-anchored metal atom clusters are precious metals, which are scarce and expensive, which is not conducive to large-scale promotion and application.

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  • A kind of preparation method and application of cadmium sulfide surface anchored copper atom cluster
  • A kind of preparation method and application of cadmium sulfide surface anchored copper atom cluster
  • A kind of preparation method and application of cadmium sulfide surface anchored copper atom cluster

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Embodiment

[0035] A preparation method of cadmium sulfide surface-anchored copper atom clusters, specifically comprising the following steps:

[0036] Step 1. Preparation of cadmium sulfide nanorods;

[0037] 1.1 Add 1.60g of cadmium acetate to 45mL of ethylenediamine, and continuously stir for 30min under the action of a magnet to obtain mixed solution A;

[0038] 1.2 Add 0.69g of thiourea to the mixed solution A obtained in step 1.1, and continue to stir for 30 min until it is completely dissolved to obtain mixed solution B;

[0039] 1.3 Transfer the mixed solution B obtained in step 1.2 to a polytetrafluoroethylene-lined reaction kettle, and then place it in a hydrothermal kettle for hydrothermal reaction. The temperature of the hydrothermal reaction is 180 ° C and the time is 24 h. After the reaction is completed, Cool to room temperature naturally, take out;

[0040] 1.4 Centrifuge, wash, and dry the product obtained in step 1.3 at 60° C. for 12 hours to obtain the cadmium sulfide...

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Abstract

The invention discloses a preparation method of cadmium sulfide surface anchoring copper atom clusters, belonging to the technical field of semiconductor photocatalytic material preparation. First, CdS nanorods were prepared by hydrothermal synthesis, then CdS nanorods were protonated to reduce the stability of Cd-S bonding, and finally, defects were formed on the surface of CdS by one-step calcination and anchored solid-state in the defects. Precursor copper salt, and finally form a ligand-free cadmium-copper sulfide atomic cluster catalyst. The invention directly anchors the copper atomic cluster on the surface of the carrier cadmium sulfide by constructing cadmium defects on the surface of the cadmium sulfide nanorod as the capture site, and the surface of the copper atomic cluster anchored on the cadmium sulfide does not need to be wrapped by any ligand; The direct contact between atoms at the interface of cadmium sulfide and copper atom clusters is constructed, which promotes the carrier transport of the system, reduces the high surface free energy of copper atom clusters, and realizes high activity and high stability of cadmium sulfide-copper atom clusters.

Description

technical field [0001] The invention belongs to the technical field of semiconductor photocatalytic material preparation, in particular to a preparation method of a photocatalytic material with copper atom clusters anchored on the surface of cadmium sulfide and its application in visible light photocatalytic reduction of carbon dioxide to generate carbon monoxide and methane. Background technique [0002] Photocatalytic reduction of carbon dioxide (CO 2 ) can obtain sustainable and renewable clean energy, such as carbon monoxide, methane, methanol, etc., which is beneficial to solve the problems of fossil fuel shortage and greenhouse gas, so it is regarded as a green new technology with great potential. As a transition metal semiconductor material, cadmium sulfide has a suitable band gap and excellent optoelectronic properties, which makes it suitable for photocatalytic reduction of CO. 2 The field has received extensive attention. However, due to the unstable chemical pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/04C07C1/12C07C9/04C01B32/40
CPCB01J27/04C07C1/12C01B32/40B01J35/39C07C9/04
Inventor 向全军程蕾岳晓阳张怀武廖宇龙金立川李颉
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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