Bi2Sn2O7 photocatalysts were synthesized by a hydrothermal method.
Bi2Sn2O7 photocatalysts showed highly efficient photocatalytic activity for the
degradation of methylene blue under visible light irradiation. Kinetic studies
using radical scavenger technologies suggested that holes were the dominant
photooxidants. After hybridization with C3N4, the photocatalytic activity of
Bi2Sn2O7 was obviously enhanced. The enhanced photocatalytic activity of the
C3N4/Bi2Sn2O7 photocatalysts could be attributed to the effective separation of
the photogenerated e−/h+ pairs. The photogenerated holes on the valence band of
Bi2Sn2O7 can transfer to the highest occupied molecular orbital of C3N4 via the
well developed interface, causing a reduction in the probability of e−/h+
recombination; consequently, large numbers of photogenerated holes led to
enhancing the photocatalytic activity.
Website: http://www.arjonline.org/physical-sciences/american-research-journal-of-chemistry/
Website: http://www.arjonline.org/physical-sciences/american-research-journal-of-chemistry/
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