Construction of a flower-like microsphere g-C3N4/Bi2MoO6 S-scheme heterojunction for visible-light photocatalytic Cr(VI) reduction
Source abstract
Abstract
A flower-like microsphere g-C3N4/Bi2MoO6S-scheme heterojunction was successfully constructed, and its photocatalytic performance in the Cr(VI) reduction was investigated under visible light. The g-C3N4/Bi2MoO6sample with a mass ratio of 10% showed the fastest reduction rate with a rate constant of 0.1203 min−1, which was 9 and 5 times higher as compared with pure g-C3N4and Bi2MoO6, respectively. Moreover, the g-C3N4/Bi2MoO6sample exhibited excellent stability in the process of cyclic experiments. The photocurrent response and EIS analysis implied that the g-C3N4/Bi2MoO6sample possessed a higher separation efficiency of photogenerated electron–hole pairs. Scavenger experiments and EPR measurements demonstrated that e−and ⋅O2−are the major reactive species in photocatalytic reduction of Cr(VI) for g-C3N4/Bi2MoO6sample. The S-scheme heterojunction formation between the g-C3N4and Bi2MoO6promoted the separation of photogenerated charge carriers, thus forming more active species, which is the reason for the enhanced photocatalytic activity of the g-C3N4/Bi2MoO6sample.Graphical abstract
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced Photocatalysis Techniques · Advanced Nanomaterials in Catalysis · Nanocluster Synthesis and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (67)
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