Development
of novel low price porous nanostructures with robust
photocatalytic hydrogen generation rate and high durability is critical
to help to meet the future energy demand. A prominent number of sunlight
active semiconductor photocatalyst nanostructures have been formulated
for the aforementioned photocatalytic reactions. However, their practical
application has been limited by low efficiency and unstability induced
by the rapid recombination of charge carriers. To effectively reduce
the recombination rate, the addition of electron-transporting cocatalysts
is a promising strategy. However, the rate of photogenerated holes
is generally slower than that of photogenerated electrons, extending
the recombination. To overcome this difficulty in this study for the
first time, coloading of both photogenerated electrons and hole-transporting
cocatalysts (C@CoS2 and TFA) on light-harvesting semiconductor
heterophase homojunction CdS (OD-2D CdS) is established as a productive
way to ameliorate the photocatalytic water splitting efficiency. Benefiting
from the huge active catalytic sites, high light harvesting capacity
and suitable band structure, the nanohybrid exhibits a prominent amount
of hydrogen 87.73 mmol·gcat
–1·h–1 was evolved with high durability. We believe that
the results presented herein may expand the potential uses of sunlight
active catalysts for sustainable and clean H2 fuel production
and to help satisfy the future energy demand.
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