Palladium nanoparticles decorated MXene for plasmon-enhanced photocatalysis

Hong Yuan, Subin Yu, Dohyub Jang, Minju Kim, Haeji Hong, Filipe Marques Mota, Dong Ha Kim

Research output: Contribution to journalArticlepeer-review

Abstract

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.

Original languageEnglish
Pages (from-to)501-507
Number of pages7
JournalJournal of Industrial and Engineering Chemistry
Volume108
DOIs
StatePublished - 25 Apr 2022

Keywords

  • MXene nanosheets
  • Nanozyme
  • Pd nanoparticles
  • Peroxidase-like activity

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