Energy band engineering over NiFe-PBA-S/graphdiyne of S-scheme heterojunction for enhance photocatalytic hydrogen production
Source abstract
Abstract
Photocatalytic hydrogen evolution technology faces great challenges in designing efficient and stable photocatalysis. Adjusting the energy band structure of photocatalyst is one of the means to design efficient and stable photocatalyst. In this work, the bimetallic Prussian blue analog (PBA) was sulfurized. It is worth noting that the process of vulcanizing NiFe-PBA (NF) into NiFe-PBA-S (NFS) has an adjustment effect on the energy band structure. NFS and graphdiyne (GDY) are combined to form NFS/GDY composite catalyst with S-scheme heterojunction, NFS/GDY has the best photocatalytic hydrogen evolution activity of 2847.86 μmol h -1 g -1. The analysis of XPS test, in-situ XPS test and Mott-Schottky test further shows that the regulation of energy band structure accelerate the electron transport and provide sufficient active sites of surface. This work offers a useful approach for developing photocatalyst of energy band engineering to enhance the performance of photocatalytic hydrogen evolution.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced Photocatalysis Techniques · Ammonia Synthesis and Nitrogen Reduction · MXene and MAX Phase Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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