Fabrication of g-C3N4/Ag3PO4-H2O2 heterojunction system with enhanced visible-light photocatalytic activity and mechanism insight
Source abstract
Abstract
Abstract The stability of Ag-based photocatalysts restricted their photocatalytic performance because of their photocorrosion. To solve the problem, the g-C3N4/Ag3PO4 was fabricated through a calcination-deposition way and the novel g-C3N4/Ag3PO4-H2O2 catalytic system was constructed in the article. The cyclic experiment and X-ray diffraction peaks of Ag3PO4 and Ag3PO4-H2O2 showed that the structure stability of g-C3N4/Ag3PO4-H2O2 was protected by using H2O2 preventing the photoetching of Ag3PO4. Ultraviolet visible diffuse reflectance spectroscopy declared that the construction of g-C3N4/Ag3PO4 heterojunction greatly improved the utilization of visible light. In addition, the transient photocurrent responses and photoluminescence spectra demonstrated that the photoinduced holes and electrons were separated effectively formed by g-C3N4 and Ag3PO4. Obviously, the above three processes promoted the excellent stability and photocatalytic performance of the g-C3N4/Ag3PO4-H2O2 catalytic system. The free radical trapping experiments also proved that holes played a leading role in photocatalytic degradation, and the possible mechanism of the g-C3N4/Ag3PO4-H2O2 catalytic system was proposed.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced Photocatalysis Techniques · Perovskite Materials and Applications · Covalent Organic Framework Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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