Preparation method of high efficiency CdS-CdIn2S4 superstructure photocatalyst

A technology of cds-cdin2s4 and photocatalyst, which is applied in the field of preparation of CdS-CdIn2S4 superstructure photocatalyst, can solve the problems of low photocatalytic efficiency and achieve the effect of large specific surface area, good catalytic activity and good application prospect

Inactive Publication Date: 2016-11-09
WENZHOU UNIVERSITY
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Problems solved by technology

However, due to the rapid recombination of photogenerated carriers, the photocatalytic efficiency is relatively low.

Method used

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  • Preparation method of high efficiency CdS-CdIn2S4 superstructure photocatalyst
  • Preparation method of high efficiency CdS-CdIn2S4 superstructure photocatalyst
  • Preparation method of high efficiency CdS-CdIn2S4 superstructure photocatalyst

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Embodiment 1

[0033] (1) Synthesis of CdS nanowires

[0034] Add 102mL of ethylenediamine, 18mL of n-dodecanethiol, 3.5mmol of cadmium acetate and 7mmol of sodium diethyldithiocarbamate into the cleaned and dried polytetrafluoroethylene liner (V=150-180mL) , stirred for 5 minutes to dissolve it. After the reaction kettle was screwed tightly and sealed, it was placed in an electric heating constant temperature blast drying oven, and reacted at 180° C. for 48 hours. Cool naturally to room temperature after the reaction, take out the product, centrifuge, wash with absolute ethanol to remove organic matter attached to the surface of the product, and then alternately wash with ethanol and high-purity water for 3 times. Finally, the sample product was put into a vacuum drying oven and dried at 60° C. for 4 hours. figure 1 SEM and TEM images of the obtained CdS nanowires. It can be seen from the figure that the product is a nanowire structure with a length of about 1.5 μm and a diameter of abou...

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Abstract

The invention discloses a preparation method of a high efficiency CdS-CdIn2S4 superstructure photocatalyst. The preparation method comprises that 1, cadmium acetate and sodium diethyldithiocarbamate as raw materials undergo a solvothermal reaction in an ethylenediamine-dodecanethiol mixed solvent at a temperature of 180 DEG C for 24h to produce a CdS nano-wire, and 2, the prepared CdS nano-wire, InCl3. 4H2O and L-cysteine undergo a reaction in ethanediol as a solvent at a temperature of 200 DEG C under the condition of backflow for some time to produce a finished product. The preparation method is green and environmentally friendly and realizes large scale production. The CdS nano-wire / CdIn2S4 nano-sheet composite superstructure can be used in the field of energy conversion such as water decomposition hydrogen production based on photocatalysis and photoelectrocatalysis.

Description

technical field [0001] The invention relates to the field of inorganic nanomaterials, in particular to a highly efficient CdS-CdIn 2 S 4 Preparation method of superstructured photocatalyst. Background technique [0002] With the rapid development of human society, the demand for fossil fuel resources is also increasing. Due to the non-renewable nature of fossil fuels, it will inevitably cause energy shortages in the long run. At the same time, the CO produced during the consumption of fossil fuels 2 will cause environmental problems. Hydrogen energy is recognized as clean energy, and it has the advantages of non-toxicity, high energy density, and good combustion performance. The production of hydrogen from non-renewable hydrocarbons (natural gas, coal, petroleum) is not a long-term solution for the sustainable production of hydrogen energy, and will produce by-products such as carbon dioxide and carbon monoxide that pollute the environment. Water is abundant and renewa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/04C01B3/04C25B1/04
CPCB01J27/04B01J35/0033B01J35/004B01J35/023B01J35/1014B01J35/1019C01B3/042C01B2203/10C25B1/04C25B1/55Y02E60/36
Inventor 马德琨柴圆圆汪婷黄少铭
Owner WENZHOU UNIVERSITY
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