Palladium nanoparticles decorated MXene for plasmon-enhanced photocatalysis

Yuan, Hong, Yu, Subin, Jang, Dohyub , Kim, Minju, Hong, Haeji, Marques Mota, Filipe and Kim, Dong Ha (2022) Palladium nanoparticles decorated MXene for plasmon-enhanced photocatalysis. Journal of Industrial and Engineering Chemistry, 108 . pp. 501-507. ISSN 1226-086X

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Palladium nanoparticles decorated MXene for plasmon-enhanced photocatalysis
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Two-dimensional MXene nanomaterials have found a wide application range in recent years. Here, Ti3C2 MXene nanosheets exhibiting inherent photothermal activity reveal synergistic plasmon-enhanced photocatalytic properties upon rational surface decoration with palladium nanoparticles (NPs). Pd incorporation induces a 1.7-fold increase in the number of defect sites on the MXene surface. Most importantly, the introduced Pd nanoparticles favour an effective separation and collection of localized surface plasmon resonance (LSPR)-induced hot charge carriers generated at the surface of semi-metallic Ti3C2 NS, further facilitating the generation of hydrogen peroxide (H2O2). The generated H2O2 is sequentially decomposed to hydroxyl radicals via the peroxidase (POD)-like activity of Pd NPs. The Pd@MXene shows approximately 2-fold enhancement of photocatalytic activity and excellent photostability under laser irradiation. Taken together, this study highlights the promise of constructing active and stable MXene-based nanohybrids for highly effective photo-responsive nanomedicine.

Keywords:localized surface plasmon resonance, MXenes, photocatalytic activity, hot charge carriers
Subjects:F Physical Sciences > F110 Applied Chemistry
Divisions:College of Science > School of Chemistry
ID Code:53634
Deposited On:21 Mar 2023 12:05

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