Nanofibrillar biochar from industrial waste as hosting network for transition metal dichalcogenides. Novel sustainable 1D/2D nanocomposites for electrochemical sensing.

Autor: Fiori S; Department of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Campus 'Aurelio Saliceti' Via R. Balzarini 1, 64100, Teramo, Italy., Della Pelle F; Department of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Campus 'Aurelio Saliceti' Via R. Balzarini 1, 64100, Teramo, Italy. Electronic address: fdellapelle@unite.it., Silveri F; Department of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Campus 'Aurelio Saliceti' Via R. Balzarini 1, 64100, Teramo, Italy., Scroccarello A; Department of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Campus 'Aurelio Saliceti' Via R. Balzarini 1, 64100, Teramo, Italy., Cozzoni E; BEES S.r.l., Via Napoli 141, Palazzo TecnoCity, 80013, Casalnuovo, NA, Italy., Del Carlo M; Department of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Campus 'Aurelio Saliceti' Via R. Balzarini 1, 64100, Teramo, Italy., Compagnone D; Department of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Campus 'Aurelio Saliceti' Via R. Balzarini 1, 64100, Teramo, Italy. Electronic address: dcompagnone@unite.it.
Jazyk: angličtina
Zdroj: Chemosphere [Chemosphere] 2023 Mar; Vol. 317, pp. 137884. Date of Electronic Publication: 2023 Jan 16.
DOI: 10.1016/j.chemosphere.2023.137884
Abstrakt: Industrial wastes have become elective sustainable sources to obtain materials for electronic/electroanalytical purposes; on the other hand, easy and green strategies to include semiconductor 2D graphene-like materials in conductive networks are highly required. In this work, 1D/2D nanocomposites (NCs) based on nanofibrillar biochar (BH) from paper industry waste and transition metal dichalcogenides (TMDs: MoS 2 , WS 2 , MoSe 2 , and WSe 2 ), were prepared in water via liquid phase exfoliation (LPE) using sodium cholate as bioderived surfactant. The TMD amount in the NCs has been carefully optimized, searching for the best compromise between electron transfer ability and electroanalytical performances. Four different water-dispersed BH-TMD NCs have been selected and comprehensively studied from the electrochemical point of view and morphologically characterized. The BH-TMDs potentiality have been demonstrated in model solutions and real samples towards different analytes of biological and agri-food interest. The most performing NCs have been selected and used for the simultaneous determination of the neurotransmitters dopamine (DP) and serotonin (SR), and the flavonoids quercetin (QR) and rutin (RT), obtaining good linearity (R 2  ≥ 0.9956) with limits of detection ranging from 10 to 200 nM. Reproducible quantitative recovery values (90-112%, RSD ≤6%, n = 3) were obtained analyzing simultaneously DP and SR in synthetic biological fluid and drugs, and QR and RT in food supplements, proving the usability of the proposed materials for real analyses. This work proves that BH-nanofibers act as a sustainable conductive hosting network for 2D-TMDs, allowing full exploit their electroanalytical potential. The proposed BH-TMD NCs represent a sustainable, affordable, and captivating opportunity for the electrochemical and (bio)sensoristic field.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2023 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
Externí odkaz: