Novel Cu3P/g-C3N4 p-n heterojunction photocatalysts for solar hydrogen generation
Source abstract
Abstract
Developing efficient heterostructured photocatalysts to accelerate charge separation and transfer is crucial to improving photocatalytic hydrogen generation using solar energy. Herein, we report for the first time that p-type copper phosphide (Cu 3 P) coupled with n-type graphitic carbon nitride (g-C 3 N 4 ) forms a p-n junction to accelerate charge separation and transfer for enhanced photocatalytic activity. The optimized Cu 3 P/g-C 3 N 4 p-n heterojunction photocatalyst exhibits 95 times higher activity than bare g-C 3 N 4 , with an apparent quantum efficiency of 2.6% at 420 nm. A detail analysis of the reaction mechanism by photoluminescence, surface photovoltaics and electrochemical measurements revealed that the improved photocatalytic activity can be ascribed to efficient separation of photo-induced charge carriers. This work demonstrates that p-n junction structure is a useful strategy for developing efficient heterostructured photocatalysts.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced Photocatalysis Techniques · Copper-based nanomaterials and applications · Perovskite Materials and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (43)
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