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Semiconductor α‐Fe2O3 Hematite Fabricated Electrode for Sensitive Detection of Phenolic Pollutants
dc.contributor.author | Rahman, Mohammed M. | |
dc.contributor.author | Fabregat-Santiago, Francisco | |
dc.contributor.author | Guerrero, Antonio | |
dc.contributor.author | Asiri, Abdullah M. | |
dc.contributor.author | Bisquert, Juan | |
dc.date.accessioned | 2019-05-07T07:12:32Z | |
dc.date.available | 2019-05-07T07:12:32Z | |
dc.date.issued | 2018-11-23 | |
dc.identifier.citation | RAHMAN, Mohammed M., et al. Semiconductor α‐Fe2O3 Hematite Fabricated Electrode for Sensitive Detection of Phenolic Pollutants. ChemistrySelect, 2018, vol. 3, no 43, p. 12169-12174 | ca_CA |
dc.identifier.issn | 2365-6549 | |
dc.identifier.uri | http://hdl.handle.net/10234/182414 | |
dc.description.abstract | Hematite (α‐Fe2O3) semiconductor is an abundant and non‐toxic catalyst for different (photo)electrochemical reactions. In this work, a selective p‐nitrophenol sensor was developed by fabricating a thin‐layer of a glassy carbon electrode (GCE) with 5% nafion coating binders onto α‐Fe2O3 thin film synthesized by a simple and inexpensive process. High sensitivity including linear dynamic range, long‐term stability, and enhanced electrochemical performance towards p‐nitrophenol were achieved by a reliable current‐voltage method. A linear calibration curve was observed over a wide range of p‐nitrophenol concentrations. Very low detection limit (0.6±0.02 nM), good limit of quantification (2.0 nM) and high sensor sensitivity (K=74.1 μA⋅cm−2) are calculated based on noise to signal ratio of ∼3 N/S. Very importantly, the detection range covers over 7 orders of magnitude concentrations, from nM to mM. Figures of merits are comparable with best reported results whilst using a very simple device configuration. We show that hematite is an excellent material for the development of chemical sensors to detect hazardous compounds for environmental safety in a broad scale of concentrations. | ca_CA |
dc.format.extent | 6 p. | ca_CA |
dc.language.iso | eng | ca_CA |
dc.publisher | Wiley | ca_CA |
dc.relation.isPartOf | ChemistrySelect, 2018, vol. 3, no 43 | ca_CA |
dc.rights | Copyright © John Wiley & Sons, Inc. | ca_CA |
dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | * |
dc.subject | environmental safety | ca_CA |
dc.subject | glassy carbon electrode | ca_CA |
dc.subject | hematite alpha-Fe2O3 | ca_CA |
dc.subject | p-Nitrophenol sensor | ca_CA |
dc.subject | sensitivity | ca_CA |
dc.title | Semiconductor α‐Fe2O3 Hematite Fabricated Electrode for Sensitive Detection of Phenolic Pollutants | ca_CA |
dc.type | info:eu-repo/semantics/article | ca_CA |
dc.identifier.doi | https://doi.org/10.1002/slct.201802503 | |
dc.relation.projectID | Generalitad Valenciana: ACOMP/2015/105; Spanish Ministerio de Economia y Competitividad: RYC-2014-16809 | ca_CA |
dc.rights.accessRights | info:eu-repo/semantics/restrictedAccess | ca_CA |
dc.relation.publisherVersion | https://onlinelibrary.wiley.com/doi/full/10.1002/slct.201802503 | ca_CA |
dc.type.version | info:eu-repo/semantics/publishedVersion | ca_CA |
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