Enhancing visible light photocatalytic activity of direct Z-scheme SnS2/Ag3PO4 heterojunction photocatalysts
Source abstract
Abstract
Abstract Novel direct Z-scheme SnS 2 /Ag 3 PO 4 heterojunction photocatalysts were successfully fabricated with SnS 2 nanoplates hybridized by Ag 3 PO 4 nanoparticals via a facile hydrothermal and precipitation method and applied for the photocatalytic degradation of methyl orange in aqueous solution under visible light irradiation (λ > 420 nm). It was found that the photocatalytic performance of the SnS 2 (2.0 wt%)/Ag 3 PO 4 heterojunction photocatalyst with 2.0 wt% SnS 2 content was much higher than that of individual SnS 2 and Ag 3 PO 4 . The enhanced photocatalytic activity could be ascribed to the efficient separation of photogenerated electrons and holes through the formation of direct Z-scheme system composed of SnS 2 and Ag 3 PO 4 . Furthermore, the recycling experiments revealed that the photocorrosion behavior of Ag 3 PO 4 was strongly inhibited by SnS 2 , it may be due to the photogenerated electrons of Ag 3 PO 4 would be quickly combined with the photogenerated holes of SnS 2 . This work will be useful for the design of other direct Z-scheme visible-light-driven photocatalytic systems for application in energy conversion and environmental remediation.
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Research context
OpenAlex topics: Advanced Photocatalysis Techniques · Gas Sensing Nanomaterials and Sensors · Copper-based nanomaterials and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (62)
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