Rational design of dynamic Z-scheme heterojunction composites for photocatalytic Cr(VI) reduction and H2 production: an experimental and computational study

Valeriia Poliukhova, Jong Ku Park, Doyeon Kim, Sovann Khan, Jin Young Seo, Se Jin Kim, Gun Hee Moon, Kyung Youl Baek, Seungchul Kim, So Hye Cho

研究成果: ジャーナルへの寄稿学術誌査読

1 被引用数 (Scopus)

抄録

This study established a dynamic Z-scheme driven heterostructure of ZnO-ZnS (ZnOS) nanoparticles (NPs) by sulfidation of ZnO NPs. The ZnOS composites with different atomic ratios of S/O were analyzed with multiple characterization techniques. The composite materials with a S/O atomic ratio of 1:1 yielded the best photocatalytic results for toxic Cr(VI) removal from water and H2 production from water under UV light. This study examined a dynamic Z-scheme energy transfer behavior at the junction of ZnOS composites for the first time via atomic and electronic structure modeling using density functional theory (DFT) simulations. ZnOS NPs were further immobilized on polyvinylidene fluoride (PVDF) via a non-solvent-induced phase separation method for functional recovery after photocatalysis.

本文言語英語
論文番号100363
ジャーナルChemical Engineering Journal Advances
12
DOI
出版ステータス出版済み - 11月 15 2022
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 環境化学
  • 化学 (全般)
  • 化学工学(全般)
  • 産業および生産工学

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