ZnO/ZnS-Polyvinyl Alcohol Hydrogel for Photocatalytic H2-Generation

Valeriia Poliukhova, Wenwei Lei, Sovann Khan, Eunju Lee Tae, Norihiro Suzuki, Chiaki Terashima, Akira Fujishima, Ken Ichi Katsumata, So Hye Cho

研究成果: ジャーナルへの寄稿学術誌査読

5 被引用数 (Scopus)

抄録

The separation of nanoparticles from a solution-based photocatalytic reaction is a significant problem in practical applications. To address the issue, we developed a new photocatalyst composite based on ZnO-ZnS heterojunction (ZnOS) embedded in polyvinyl alcohol (PVA) hydrogel, which showed satisfactory results for photocatalyst recycling. PVA-ZnOS composite hydrogel was fabricated by freezing-induced gelation, which enabled the encapsulation of ZnOS nanoparticles into polymeric matrices. PVA hydrogel served as a promising candidate in photocatalytic applications due to its excellent properties such as high transparency, porosity, hydrophilicity, and stability under ultraviolet (UV) light. PVA-ZnOS hydrogel showed worthy activity in H2 generation from Na2 S/Na2 SO3 aqueous solution under UV radiation with a production rate of 18.8 µmol·h−1. PVAZnOS composite hydrogel is a separation-free photocatalyst, which is prospective in a solution-based photocatalytic reactor.

本文言語英語
論文番号272
ジャーナルCatalysts
12
3
DOI
出版ステータス出版済み - 3月 2022

!!!All Science Journal Classification (ASJC) codes

  • 触媒
  • 物理化学および理論化学

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