Abstract
Possibility of using composites based on boron nitride in combined photocatalytic processes for degradation of soluble organic substances and generation of hydrogen was examined. The hydrogen evolution rate and output capacity of the composites under study in release of hydrogen from aqueous solutions of formic and oxalic acids and hydrazine under irradiation with visible and UV light were evaluated. It is shown that the highest efficiency of generation of molecular hydrogen is achieved in photodecomposition of hydrazine and oxalic acid with a composite whose phase composition includes iron and a set of semiconductor carbides (Fe3C, MgC2, Al4C3, SiC).
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