首页|Tubular g-C3N4 coupled with lanthanide oxides Yb2O3 as a novel bifunctional photocatalyst：Enhanced photocatalytic NO removal and H2 evolution, dual regulation and reaction pathway
Tubular g-C3N4 coupled with lanthanide oxides Yb2O3 as a novel bifunctional photocatalyst：Enhanced photocatalytic NO removal and H2 evolution, dual regulation and reaction pathway
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NSTL
Elsevier
? 2022 Elsevier B.V.The modification of graphite carbonitride (g-C3N4) is beneficial to increase its specific surface area and high quantum efficiency, thus improving its activity. Herein, the Yb2O3/g-C3N4 composites were adjusted through dual regulation synergistically (nanostructure design of g-C3N4 and addition of lanthanide oxides Yb2O3) to improve the photocatalytic performance of hydrogen production and NO removal simultaneously. The as-prepared 1% Yb2O3/tubular g-C3N4 could efficiently promote the photocatalytic hydrogen evolution (4071.763 μmol·g?1·h?1) and NO removal performance (54.20%), which was approximately 8.85 times and 32.01% higher respectively than that of bulk g-C3N4 prepared by melamine (g-C3N4-M). The formation process of·O2- and·OH radicals and the oxidation process of NO had been systematically studied through ESR and in-situ DRIFTS, which proved that the coupling of tubular g-C3N4 with Yb2O3 had a positive effect. This work provided a novel strategy for dual regulation (adjust morphology and metal oxide introduction) synergistically design of bifunctional photocatalysts to enhance H2 production and NO removal simultaneously.
Chongqing Key Laboratory of Catalysis and New Environmental Materials College of Environment and Resources Chongqing Technology and Business University
NSTL
Elsevier
