Preparation method of ZnxCd1-xS composite hydrogen evolution material
The invention relates to a preparation method of a ZnxCd1-xS composite hydrogen evolution material, which comprises the following steps: taking zinc acetate and cadmium acetate as reaction precursors, taking ethanol as a solvent, directly stirring with Na2S at room temperature to generate a precursor, and calcining in a nitrogen atmosphere to obtain the ZnxCd1-xS composite hydrogen evolution material. The preparation method is different from a traditional hydrothermal reaction method, ethanol is used as a solvent, the preparation method is carried out at room temperature, and the composite material is prepared in combination with a calcination method; the surface defects in the ZnxCd1-xS material are removed in the calcining process, transmission and diffusion of carriers are promoted, the forbidden band width can be regulated and controlled by changing the proportion of Zn to Cd, so that energy level distribution of electrons and holes is more suitable for photocatalytic reaction, and therefore the photocatalytic performance is improved by reducing compounding of the electrons and the holes; the preparation process is simple, easy to implement and environmentally friendly, energy consumption is reduced, the sample has good hydrogen evolution performance and stable performance, and photocatalyst material industrialization can be achieved..
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Patent| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Europäisches Patentamt - (2023) vom: 24. Okt. Zur Gesamtaufnahme - year:2023 |
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| Sprache: |
Englisch |
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| Beteiligte Personen: |
ZUO LEI [VerfasserIn] |
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| Links: |
Volltext [kostenfrei] |
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| Anmerkungen: |
Source: www.epo.org (no modifications made), First posted: 2023-10-24, Last update posted on www.tib.eu: 2024-01-22, Last updated: 2024-01-26 |
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| Patentnummer: |
CN116924458 |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
EPA018937616 |
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| 245 | 1 | 0 | |a Preparation method of ZnxCd1-xS composite hydrogen evolution material |
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| 520 | |a The invention relates to a preparation method of a ZnxCd1-xS composite hydrogen evolution material, which comprises the following steps: taking zinc acetate and cadmium acetate as reaction precursors, taking ethanol as a solvent, directly stirring with Na2S at room temperature to generate a precursor, and calcining in a nitrogen atmosphere to obtain the ZnxCd1-xS composite hydrogen evolution material. The preparation method is different from a traditional hydrothermal reaction method, ethanol is used as a solvent, the preparation method is carried out at room temperature, and the composite material is prepared in combination with a calcination method; the surface defects in the ZnxCd1-xS material are removed in the calcining process, transmission and diffusion of carriers are promoted, the forbidden band width can be regulated and controlled by changing the proportion of Zn to Cd, so that energy level distribution of electrons and holes is more suitable for photocatalytic reaction, and therefore the photocatalytic performance is improved by reducing compounding of the electrons and the holes; the preparation process is simple, easy to implement and environmentally friendly, energy consumption is reduced, the sample has good hydrogen evolution performance and stable performance, and photocatalyst material industrialization can be achieved. | ||
| 650 | 4 | |a B01J: Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus | |
| 650 | 4 | |a C01B: Non-metallic elements; compounds thereof (fermentation or enzyme-using processes for the preparation of elements or inorganic compounds except carbon dioxide c12p0003000000; production of non-metallic elements or inorganic compounds by electrolysis or electrophoresis c25b) | |
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| 650 | 4 | |a C01G: Compounds containing metals not covered by subclasses c01d or c01f (metal hydrides c01b0006000000; salts of oxyacids of halogens c01b0011000000; peroxides, salts of peroxyacids c01b0015000000; thiosulfates, dithionites, polythionates c01b0017640000; compounds containing selenium or tellurium c01b0019000000; binary compounds of nitrogen with metals c01b0021060000; azides c01b0021080000; metal amides c01b0021092000; nitrites c01b0021500000; phosphides c01b0025080000; salts of oxyacids of phosphorus c01b0025160000; carbides c01b0032900000; compounds containing silicon c01b0033000000; compounds containing boron c01b0035000000; compounds having molecular sieve properties but not having base-exchange properties c01b0037000000; compounds having molecular sieve and base-exchange properties, e.g. crystalline zeolites, c01b0039000000; cyanides c01c0003080000; salts of cyanic acid c01c0003140000; salts of cyanamide c01c0003160000; thiocyanates c01c0003200000; fermentation or enzyme-using processes for the preparation of elements or inorganic compounds except carbon dioxide c12p0003000000; obtaining metal compounds from mixtures, e.g. ores, which are intermediate compounds in a metallurgical process for obtaining a free metal c21b, c22b; production of non-metallic elements or inorganic compounds by electrolysis or electrophoresis c25b) | |
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| 650 | 4 | |a B82Y: Specific uses or applications of nanostructures; measurement or analysis of nanostructures; manufacture or treatment of nanostructures | |
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