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Preparation method of tin-doped cuprous oxide

A cuprous oxide and tin doping technology, which is applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, chemical/physical processes, etc., can solve complex preparation processes, low photocatalytic efficiency, Raw materials have toxicity and other problems, to achieve the effect of simple preparation process, rich and non-toxic, rich raw materials

Inactive Publication Date: 2015-09-02
UNIV OF JINAN
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, its actual photocatalytic efficiency is not high, which is caused by the recombination of photogenerated electron-hole pairs, and photocorrosion also has a great influence on its performance.
Currently doped Cu 2 There are many methods for O, such as the reduction method of hydrazine hydrate solution to prepare Sn-doped Cu 2 O, as well as radio frequency plasma oxidation, pulsed laser deposition, etc., but these methods have complex preparation processes or high equipment requirements
Existing reports on Sn-doped Cu 2 There are few methods for the preparation of O, and the general doping preparation methods such as pulsed laser deposition, magnetron sputtering, etc. raw materials are toxic

Method used

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  • Preparation method of tin-doped cuprous oxide
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  • Preparation method of tin-doped cuprous oxide

Examples

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Embodiment 1

[0030] A method for preparing tin-doped cuprous oxide, first weigh 0.9664g copper nitrate (Cu(NO3)2·3H2O) and 0.0379g stannous chloride, add them to 80ml of ethylene glycol, and rotate at 600-800rpm Stir vigorously for 1 hour, then transfer to a 100ml autoclave, react at 140°C for 10 hours to obtain a precipitate; then wash 3 times with deionized water and absolute ethanol, and put it in a vacuum drying oven at 60°C for 12 hours Get the final product, see attached figure 1 , 3 , 4, and 7.

Embodiment 2

[0032] A preparation method of tin-doped cuprous oxide, first weigh 0.9664g copper nitrate (Cu(NO3)2·3H2O) and 0.0379g stannous chloride or 0.0701g tin chloride pentahydrate, and add them to 80ml of ethylene dichloride In alcohol, stir vigorously at 600-800rpm for 1 hour, then transfer to a 100ml autoclave, react at 140°C for 10 hours to obtain a precipitate; then wash with deionized water and absolute ethanol for 3 times, and put it into vacuum The final product is obtained in a drying oven at 60℃ for 12 hours, see attached figure 2 , 5 , 6 and 8.

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Abstract

The invention belongs to the technical field of photocatalysts, in particular to a preparation method of tin-doped cuprous oxide. The preparation method provided by the technical scheme of the invention comprises the following steps: adding ethanediol to cupric nitrate and stannous chloride to be prepared into a solution; stirring the solution fiercely and transferring into a high-pressure autoclave, reacting for 10 hours at 140 DEG C to obtain the precipitate; cleaning the precipitate and placing the cleaned precipitate into a vacuum drying oven for drying for 12 hours at 60 DEG C to obtain the end product. The preparation method of tin-doped cuprous oxide, provided by the invention, is simple in process, simple in equipment, and a solvothermal method is adopted, so that the solution is directly mixed to be placed in the high-pressure autoclave for reaction at 140 DEG C to obtain the end product, the yield is high, and the raw materials adopted by the method are abundant and non-toxic.

Description

Technical field [0001] The invention belongs to the technical field of photocatalysts, and particularly relates to a method for preparing tin-doped cuprous oxide. Background technique [0002] Cuprous oxide is a direct band gap p-type semiconductor with a band gap width of 2.0 eV. It absorbs visible light strongly and can be directly excited by visible light. Cu 2 O due to its non-toxicity, stable chemical properties, direct degradation of organic matter, no secondary pollution, and theoretically high utilization efficiency, it is a promising photocatalyst. However, the actual photocatalytic efficiency is not high, which is caused by the recombination of photogenerated electron-hole pairs, and photoetching also has a great influence on its performance. Doped Cu 2 There are many methods for O, such as hydrazine hydrate solution reduction method to prepare Sn doped Cu 2 O, as well as radio frequency plasma oxidation, pulsed laser deposition, etc., but these methods have complex pr...

Claims

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Application Information

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IPC IPC(8): B01J23/835
Inventor 邓小龙徐锡金丁梦邵明辉黄金昭
Owner UNIV OF JINAN
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