Research Progress of Zinc Chromium Sulfide as Hydrogen Production Photo-catalysts
The increasing depletion of traditional fossil fuels and the serious environmental pollution caused by their combustion have prompted people to search for renewable and clean energy sources.As an efficient and clean energy source,hydrogen energy has attracted much attention.Among the traditional hydrogen production technologies,hydrogen production from fossil fuel is the most widely used.However,the production process causes large energy consumption and greenhouse gas generation.The photocatalytic hydrogen production technology is widely accepted as an ideal solution.It converts solar energy into hydrogen energy and stores solar energy in the form of chemical energy.The photocatalysts include titanium dioxide,zinc oxide,tin oxide,zirconium dioxide,cadmium sulfide and other oxide sulfide semiconductors,among which metal sulfides are considered as a good photocatalytic material with good visible light response,suitable energy band structure,abundant and simple preparation.However,metal sulfides tend to photocorrode during photochemical reactions,and the improvement of their activity and stability needs to be urgently investigated.The key material,the hydrogen production performance,and the stabilities are summarized.Finally,the key challenges and future development directions of photocatalytic hydrogen production technology are discussed and prospected.
production of hydrogenphotocatalysisdouble carbonzinc chromium sulfide
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