Method for preparation of deuterium gas by photocatalysis of deuterium oxide

A technology of photocatalysis and photocatalysis, which is applied in chemical instruments and methods, inorganic chemistry, non-metallic elements, etc., can solve the problems such as the great influence of deuterium gas, and achieve the effect of high energy consumption

Inactive Publication Date: 2020-03-24
曾功昶
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AI Technical Summary

Problems solved by technology

First of all, high-purity deuterium can provide material guarantee for the production of nuclear weapons, maintain nuclear deterrence to maintain national security; secondly, at present, t

Method used

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  • Method for preparation of deuterium gas by photocatalysis of deuterium oxide

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Take 10mg Cd 0.5 Zn 0.5 S photocatalyst suspended in 30ml D 2 O, add 0.25M Na 2 SO 3 , 0.35M Na 2 S is a sacrificial agent. Irradiate with Xe lamp-300W (PLS-SXE300, Perfectlight Co., China Beijing Price Sai 300 Photoelectric Technology Co., Ltd.) (AM1.5G, 100mW / cm 2 ), the generated deuterium gas is used (GC-7900, Tianmei, molecular sieve column by using a TCD detector, Gc-7900, Tianmei, TCD detector of 5 molecular sieve columns), obtain 1.962mmol / g.h.

Embodiment 2

[0030] Take 10mg MoS 2 -Cd 0.5 Zn 0.5 S(1%MoS 2 content) photocatalyst suspended in 30ml D 2 O, add 0.25MNa 2 SO 3 , 0.35M Na 2 S is a sacrificial agent. Irradiate with Xe lamp-300W (PLS-SXE300, Perfectlight Co., China) (AM1.5G at 100mW / cm 2 ), the generated deuterium gas is used (GC-7900, Tianmei, molecular sieve column by using a TCD detector), 6.524mmol / g.h. was obtained.

Embodiment 3

[0032] Take 10mg MoS 2 -Cd 0.5 Zn 0.5 S(5%MoS 2 content) photocatalyst suspended in 30ml D 2 O, add 0.25MNa 2 SO 3 , 0.35M Na 2 S is a sacrificial agent. Irradiate with Xe lamp-300W (PLS-SXE300, Perfectlight Co., China) (AM1.5G at 100mW / cm 2 ), the generated deuterium gas is used (GC-7900, Tianmei, molecular sieve column by using a TCD detector), 8.156mmol / g.h. was obtained.

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Abstract

The invention discloses a method for preparation of deuterium gas by photocatalysis of deuterium oxide. The method is low in cost, safe, environment-friendly and high in preparation efficiency. The method comprises the steps of: 1) mixing cadmium acetate tetrahydrate, zinc acetate dihydrate, thiourea and sodium manganate dihydrate, then dissolving the mixture in ethylenediamine, and performing stirring to obtain a reaction mixed solution; and 2) putting the mixed solution obtained in step 1) into a polytetrafluoroethylene-lined stainless steel autoclave, adding sodium manganate dehydrate, carrying out programmed heating to 150-200DEG C, conducting heat preservation for 8-24h, performing cooling to room temperature and performing separation, conducting washing with water and ethanol repeatedly, and staying the product overnight in a vacuum drying oven to obtain a MoS2-Cd0.5Zn0.5S photocatalyst containing MoS2; and 3) suspending the MoS2-Cd0.5Zn0.5S photocatalyst in D2O, adding Na2SO3 and Na2S as the sacrificial agent, and performing irradiation with Xe lamp-300W to obtain deuterium gas.

Description

technical field [0001] The invention relates to the field of deuterium gas preparation, in particular to a method for preparing deuterium gas from photocatalyzed heavy water. Background technique [0002] Deuterium gas is mainly used in military affairs, such as nuclear energy industry, nuclear weapons, deuterium fluoride chemical laser weapons, etc. Later, the use of deuterium became more and more extensive. As a civilian material, deuterium has important uses in the fields of optical fiber materials, lubricant performance optimization, special light sources, nuclear medicine research, agricultural breeding, pharmaceuticals, annealing and sintering of silicon semiconductors, etc. The main methods of deuterium gas preparation include liquid hydrogen rectification, electrolysis of heavy water, palladium / alloy thin film or metal hydride method, gas chromatography, laser method, etc. [0003] At present, there are four main processes for the separation of hydrogen isotopes by ...

Claims

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Application Information

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IPC IPC(8): C01B4/00
CPCC01B4/00
Inventor 曾功昶曾和平
Owner 曾功昶
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