Exploring the synergistic role of crystal facet and phase at hetero-interface towards light-switchable chemoselective oxidation over bismuth-based catalysts

Muhammad Tayyab, Bernard Jomari Razote, Chang Ha Lee

Research output: Contribution to journalArticlepeer-review

Abstract

The surface or interface facets design is a versatile strategy to improve essential catalytic features to enhance efficiency. Herein, a systematic study was conducted to explore the roles of exposed facets at the surface of a bare catalyst or interfaces of hybrid Bi-based catalysts. The facet- and phase-controlled catalysts were synthesized via hydrolysis. Zn+ cations on the optimized hybrid structure served as additional active sites. Their contributions to promoting charge transfer and inhibiting electron-hole recombination resulted in enhanced photo-oxidation. The catalytic and photocatalytic activities were measured in gaseous 2-chloroethyl ethyl sulfide (CEES) detoxification and liquid benzyl alcohol oxidation. A light-switchable chemo-selective change from dehydrohalogenation to oxidation was observed during CEES detoxification. Compared to degradation under dark, a significant enhancement in CEES degradation was observed under simulated solar light. The developed B-mBP-ZnO catalyst exhibited superior performances in photo-oxidation of CEES to chloroethyl ethyl sulfoxide and benzyl alcohol to benzaldehyde.

Original languageEnglish
Pages (from-to)651-662
Number of pages12
JournalJournal of Colloid and Interface Science
Volume617
DOIs
Publication statusPublished - 2022 Jul

Bibliographical note

Funding Information:
Funding: This research was supported by the National Research Foundation of Korea and funded by the Ministry of Science and ICT (NRF-2020K1A4A7A02095371).

Publisher Copyright:
© 2022 Elsevier Inc.

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Surfaces, Coatings and Films
  • Colloid and Surface Chemistry

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