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Facile Fabrication of Wood-Derived Porous Fe3C/Nitrogen-Doped Carbon Membrane for Colorimetric Sensing of Ascorbic Acid
Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för material- och miljökemi (MMK).
Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för material- och miljökemi (MMK).ORCID-id: 0000-0003-3582-6075
Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för material- och miljökemi (MMK).
Vise andre og tillknytning
Rekke forfattare: 62023 (engelsk)Inngår i: Nanomaterials, E-ISSN 2079-4991, Vol. 13, nr 20, artikkel-id 2786Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Fe3C nanoparticles hold promise as catalysts and nanozymes, but their low activity and complex preparation have hindered their use. Herein, this study presents a synthetic alternative toward efficient, durable, and recyclable, Fe3C-nanoparticle-encapsulated nitrogen-doped hierarchically porous carbon membranes (Fe3C/N–C). By employing a simple one-step synthetic method, we utilized wood as a renewable and environmentally friendly carbon precursor, coupled with poly(ionic liquids) as a nitrogen and iron source. This innovative strategy offers sustainable, high-performance catalysts with improved stability and reusability. The Fe3C/N–C exhibits an outstanding peroxidase-like catalytic activity toward the oxidation of 3,3′,5,5′-tetramethylbenzidine in the presence of hydrogen peroxide, which stems from well-dispersed, small Fe3C nanoparticles jointly with the structurally unique micro-/macroporous N–C membrane. Owing to the remarkable catalytic activity for mimicking peroxidase, an efficient and sensitive colorimetric method for detecting ascorbic acid over a broad concentration range with a low limit of detection (~2.64 µM), as well as superior selectivity, and anti-interference capability has been developed. This study offers a widely adaptable and sustainable way to synthesize an Fe3C/N–C membrane as an easy-to-handle, convenient, and recoverable biomimetic enzyme with excellent catalytic performance, providing a convenient and sensitive colorimetric technique for potential applications in medicine, biosensing, and environmental fields.

sted, utgiver, år, opplag, sider
2023. Vol. 13, nr 20, artikkel-id 2786
Emneord [en]
iron carbide nanoparticles, nitrogen-doped carbon, wood-derived carbon, colorimetric detection, ascorbic acid
HSV kategori
Identifikatorer
URN: urn:nbn:se:su:diva-223976DOI: 10.3390/nano13202786ISI: 001092601900001PubMedID: 37887937Scopus ID: 2-s2.0-85175081396OAI: oai:DiVA.org:su-223976DiVA, id: diva2:1814378
Tilgjengelig fra: 2023-11-24 Laget: 2023-11-24 Sist oppdatert: 2024-01-18bibliografisk kontrollert
Inngår i avhandling
1. Heteroatom-doped porous carbon materials derived from poly(ionic liquid)s and their composites for battery and catalytic applications
Åpne denne publikasjonen i ny fane eller vindu >>Heteroatom-doped porous carbon materials derived from poly(ionic liquid)s and their composites for battery and catalytic applications
2024 (engelsk)Doktoravhandling, med artikler (Annet vitenskapelig)
Abstract [en]

In the past decade, there has been significant interest in heteroatom-doped porous carbons, driven by the distinctive and adjustable physical and chemical properties that they exhibit across scales, from the atomic to the macroscopic level. Particularly, attributes such as conductivity, electron density, high specific surface area, hierarchical pore structure, and oxidation resistance offer a wide range of characteristics for diverse applications. The development of multimodal, hierarchical pore sizes, ranging from micropores to macropores, ensures balanced diffusion resistance and a high surface area for active site accommodation. However, their synthesis usually involves multiple steps or complicated processing to incorporate both hierarchically porous structures and heteroatoms in carbon materials.

This PhD thesis explores poly(ionic liquid)s (PILs) for preparation of heteroatom-doped porous carbon materials, driven by the growing demand for functional carbons in industry and academia. The aim of this thesis is to develop straightforward synthetic approaches to introduce various heteroatoms and different pore sizes in the carbonous structure and study their diverse functions. Here, we propose and explore fabrication methods based on two precursors. First, PILs were examined as both the carbon and heteroatom source, serving as a sacrificial template for porous carbons. Second, the delicate structure of wood was employed as a carbon source to generate macropores, while being coated with PILs to introduce heteroatoms or iron-based nanoparticles and create additional micropores. Moreover, the application of these carbonaceous materials was studied in two areas, i.e., batteries and artificial enzymes. This research is likely to contribute to a deeper understanding of synthetic methodologies of heteroatom-doped porous carbon materials and their physiochemical properties for various applications.

sted, utgiver, år, opplag, sider
Stockholm: Department of Materials and Environmental Chemistry, Stockholm University, 2024. s. 60
Emneord
Heteroatom doped carbon, Porous carbon membrane, Poly(ionic liquid)-derived carbon, Wood-derived carbon, Catalytic activity, Peroxidase-like activity, lithium sulfur battery
HSV kategori
Forskningsprogram
materialkemi
Identifikatorer
urn:nbn:se:su:diva-225583 (URN)978-91-8014-639-5 (ISBN)978-91-8014-640-1 (ISBN)
Disputas
2024-03-01, Magnélisalen, Kemiska övningslaboratoriet, Svante Arrhenius väg 16 B, Stockholm, 13:00 (engelsk)
Opponent
Veileder
Tilgjengelig fra: 2024-02-07 Laget: 2024-01-17 Sist oppdatert: 2024-02-15bibliografisk kontrollert

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