Kinetic investigation of para-nitrophenol reduction with photodeposited platinum nanoparticles onto tunicate cellulose
| Autor: | Thiel, T.A., Zhang, X., Radhakrishnan, B., Van De Krol, R., Abdi, F.F., Schroeter, M., Schomäcker, R., Schwarze, M. |
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| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: |
Catalysts
Sodium Borohydride Photodeposition Alumina immobilizing platinum nanoparticles Aluminum oxide electrochemical hydrogenation of para-nitrophenol photocatalytic reduction mechanism support Biopolymers Phenols Nanoparticles Hydrogenation Pt@cellulose catalysts Cellulose Electrocatalysis 547 Organische Chemie Hydrogen |
| Zdroj: | Thiel, T.; Zhang, X.; Radhakrishnan, B.; van de Krol, R.; Abdi, F.; Schroeter, M.; Schomäcker, R.; Schwarze, M.: Kinetic investigation of para-nitrophenol reduction with photodeposited platinum nanoparticles onto tunicate cellulose. In: RSC Advances. Vol. 12 (2022) 48, 30860-30870. (DOI: /10.1039/D2RA05507D) |
| ISSN: | 2046-2069 |
| DOI: | 10.14279/depositonce-16890 |
| Popis: | Photodeposition is a specific method for depositing metallic co catalysts onto photocatalysts and was applied for immobilizing platinum nanoparticles onto cellulose, a photocatalytically inactive biopolymer. The obtained Pt cellulose catalysts show narrow and well dispersed nanoparticles with average sizes between 2 and 5 nm, whereby loading, size and distribution depend on the preparation conditions. The catalysts were investigated for the hydrogenation of para nitrophenol via transfer hydrogenation using sodium borohydride as the hydrogen source, and the reaction rate constant was determined using the pseudo first order reaction rate law. The Pt cellulose catalysts are catalytically active with rate constant values k from 0.09 10 amp; 8722;3 to 0.43 10 amp; 8722;3 min amp; 8722;1, which were higher than the rate constant of a commercial Pt Al2O3 catalyst k 0.09 10 amp; 8722;3 min amp; 8722;1 . Additionally, the Pt cellulose catalyst can be used for electrochemical hydrogenation of para nitrophenol where the hydrogen is electrocatalytically formed. The electrochemical hydrogenation is faster compared to the transfer hydrogenation k 0.11 min amp; 8722;1 |
| Databáze: | OpenAIRE |
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