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Cu2O-CuO@biochar composite: synthesis, characterization and its efficient photocatalytic performance

Khataee, Alireza, Kalderis Dimitrios, Gholami Peyman, Fazli Arezoo, Moschogiannaki Marilena, Binas Vasileios, Lykaki Maria, Konsolakis Michail

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URIhttp://purl.tuc.gr/dl/dias/3DEBCBCD-207B-4BCB-B0B5-F7099D9B88F5-
Identifierhttps://doi.org/10.1016/j.apsusc.2019.143846-
Identifierhttps://www.sciencedirect.com/science/article/pii/S0169433219326625-
Languageen-
Extent14 pagesen
TitleCu2O-CuO@biochar composite: synthesis, characterization and its efficient photocatalytic performanceen
CreatorKhataee, Alirezaen
CreatorKalderis Dimitriosen
CreatorΚαλδερης Δημητριοςel
CreatorGholami Peymanen
CreatorFazli Arezooen
CreatorMoschogiannaki Marilenaen
CreatorBinas Vasileiosen
CreatorLykaki Mariaen
CreatorΛυκακη Μαριαel
CreatorKonsolakis Michailen
CreatorΚονσολακης Μιχαηλel
PublisherElsevieren
Content SummaryThis research focuses on the facile hydrothermal preparation of Cu2O-CuO@biochar (Cu2O-CuO@BC) compo-sites of different BC content (0.5, 1.0, and 2.0 g/L) as efficient photocatalysts for the decomposition and mi-neralization of Reactive Orange 29 (RO29). The textural and morphological properties of biochar-based com-posites were studied utilizing BET, TEM, and SEM analyses. Moreover, EDX, XRD, UV–Vis, DRS and FTIRcharacterization was carried out to evaluate the elemental composition, crystalline structure, optical char-acteristics and functional groups of the samples, respectively. The Cu2O-CuO@BC-1.0 composite with a BCcontent of 1.0 g/L exhibited superior photocatalytic performance than the individual counterparts BC and Cu2O-CuO, due to its narrow band gap and high surface area. These characteristics led to the synergetic ability of UVirradiation and photocatalytic performance of Cu2O-CuO@BC to generate oxidizing species and subsequentradical reactions. The generation of some by-products was verified using GC–MS analysis and accordingly, apossible pathway was proposed. 94.12% degradation efficiency of RO29 was obtained by Cu2O-CuO@BC-1.0composite at the natural pH of RO29 solution (8.9) and initial RO29 concentration of 20 mg/L after 90 min ofphotocatalysis. Under identical conditions, 47.31% and 79.62% COD removal efficiencies were observed after 90and 180 min treatment, respectively.en
Type of ItemPeer-Reviewed Journal Publicationen
Type of ItemΔημοσίευση σε Περιοδικό με Κριτέςel
Licensehttp://creativecommons.org/licenses/by/4.0/en
Date of Item2020-03-31-
Date of Publication2019-
SubjectCopper oxide compositeen
SubjectPhotocatalysten
SubjectHydrothermal synthesisen
SubjectAdvanced water treatmenten
SubjectBiocharen
Bibliographic CitationA. Khataee, D. Kalderis, P. Gholami, A. Fazli, M. Moschogiannaki, V. Binas, M. Lykaki and M. Konsolakis, "Cu2O-CuO@biochar composite: Synthesis, characterization and its efficient photocatalytic performance," Appl. Surf. Sci., vol. 498, Dec. 2019. doi: 10.1016/j.apsusc.2019.143846en

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