Method for preparation of deuterium gas by photocatalysis of deuterium oxide

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 ...

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, the international research on controllable nuclear fusion energy has invested heavily, and the purity of deuterium in fusion reactions has a great impact on Responses have a greater impact

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