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Scalable Photocatalyst Panels for Photoreforming of Plastic, Biomass and Mixed Waste in Flow.
Uekert, Taylor; Bajada, Mark A; Schubert, Teresa; Pichler, Christian M; Reisner, Erwin.
Afiliação
  • Uekert T; Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK.
  • Bajada MA; Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK.
  • Schubert T; Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK.
  • Pichler CM; Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK.
  • Reisner E; Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK.
ChemSusChem ; 14(19): 4190-4197, 2021 Oct 05.
Article em En | MEDLINE | ID: mdl-33156562
Solar-driven reforming uses sunlight and a photocatalyst to generate H2 fuel from waste at ambient temperature and pressure. However, it faces practical scaling challenges such as photocatalyst dispersion and recyclability, competing light absorption by the waste solution, slow reaction rates and low conversion yields. Here, the immobilisation of a noble-metal-free carbon nitride/nickel phosphide (CNx |Ni2 P) photocatalyst on textured glass is shown to overcome several of these limitations. The 1 cm2 CNx |Ni2 P panels photoreform plastic, biomass, food and mixed waste into H2 and organic molecules with rates comparable to those of photocatalyst slurries. Furthermore, the panels enable facile photocatalyst recycling and novel photoreactor configurations that prevent parasitic light absorption, thereby promoting H2 production from turbid waste solutions. Scalability is further verified by preparing 25 cm2 CNx |Ni2 P panels for use in a custom-designed flow reactor to generate up to 21 µmolH 2 m-2 h-1 under "real-world" (seawater, low sunlight) conditions. The application of inexpensive and readily scalable CNx |Ni2 P panels to photoreforming of a variety of real waste streams provides a crucial step towards the practical deployment of this technology.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: ChemSusChem Assunto da revista: QUIMICA / TOXICOLOGIA Ano de publicação: 2021 Tipo de documento: Article País de publicação: Alemanha

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: ChemSusChem Assunto da revista: QUIMICA / TOXICOLOGIA Ano de publicação: 2021 Tipo de documento: Article País de publicação: Alemanha