Logotipo do repositório
 

Publicação:
Sugarcane bagasse biochar pellets for removal of caffeine, norfloxacin, and ciprofloxacin in aqueous samples

dc.contributor.authorFonsêca, Mateus Cottorello [UNESP]
dc.contributor.authorMarasco, César Augusto Júnior [UNESP]
dc.contributor.authorDos Santos Dias, Diógenes [UNESP]
dc.contributor.authorDa Silva, João Pedro [UNESP]
dc.contributor.authorLamarca, Rafaela Silva [UNESP]
dc.contributor.authorRibeiro, Clóvis Augusto [UNESP]
dc.contributor.authorPires, Lorena Oliveira [UNESP]
dc.contributor.authorDe Lima Gomes, Paulo Clairmont Feitosa [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.date.accessioned2023-03-02T00:29:18Z
dc.date.available2023-03-02T00:29:18Z
dc.date.issued2022-01-01
dc.description.abstractThis work investigates the physicochemical properties of a biochar obtained from sugarcane bagasse by torrefaction at four different temperatures (260, 270, 280, and 290 °C), without chemical or physical activation. The biochar was characterized by thermogravimetric and proximate analysis, Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy, together with measurements of point of zero charge, pH, elemental composition, and surface area. Evaluation regarding the efficiency of the biochar employed as an adsorbent for the removal of caffeine, ciprofloxacin, and norfloxacin in wastewater samples. The assays were performed in batch vessels filled with lab-made sewage spiked with caffeine at 5.00 μg L-1and with ciprofloxacin and norfloxacin at 10.0 μg L-1. These compounds were studied separately. The thermogravimetry data demonstrated that increasing the torrefaction temperature led to generation of a greater amount of fixed carbon, as well as loss of volatile materials and removal of noncondensable compounds. This was corroborated by the FTIR analyses, where a higher temperature led to higher intensity of bands corresponding to methyl, methylene, and C=C bonds. The biochar produced at 280 °C presented the best stability, with adsorption efficiencies for removal from the lab-made sewage of 91% (norfloxacin), 81% (ciprofloxacin), and 58% (caffeine).en
dc.description.affiliationSão Paulo State University National Institute for Alternative Technologies of Detection Toxicological Evaluation and Removal of Micropollutants and Radioactives
dc.description.affiliationSão Paulo State University Institute of Chemistry
dc.description.affiliationUnespSão Paulo State University National Institute for Alternative Technologies of Detection Toxicological Evaluation and Removal of Micropollutants and Radioactives
dc.description.affiliationUnespSão Paulo State University Institute of Chemistry
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdFAPESP: 2016/03369-3
dc.description.sponsorshipIdFAPESP: 2018/11700-7
dc.description.sponsorshipIdFAPESP: 2018/22393-8
dc.format.extent82-96
dc.identifierhttp://dx.doi.org/10.26850/1678-4618eqj.v47.2.2022.p82-96
dc.identifier.citationEcletica Quimica, v. 47, n. 2, p. 82-96, 2022.
dc.identifier.doi10.26850/1678-4618eqj.v47.2.2022.p82-96
dc.identifier.issn1678-4618
dc.identifier.issn0100-4670
dc.identifier.scopus2-s2.0-85129826022
dc.identifier.urihttp://hdl.handle.net/11449/241823
dc.language.isoeng
dc.relation.ispartofEcletica Quimica
dc.sourceScopus
dc.subjectadsorbent
dc.subjectemerging contaminants
dc.subjectremoval
dc.subjectTorrefaction
dc.subjectwastewater
dc.titleSugarcane bagasse biochar pellets for removal of caffeine, norfloxacin, and ciprofloxacin in aqueous samplesen
dc.typeArtigo
dspace.entity.typePublication
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Química, Araraquarapt
unesp.departmentQuímica Analítica - IQARpt

Arquivos