Lignocellulosic derivative and chitosan bioadsorbent: Synthesis, characterization, and performance in chromium adsorption

dc.contributor.authorANDRADE NETO, JOSÉ CARLOS
dc.contributor.authorPEREIRA, GILBERTO JOSÉ
dc.contributor.authorAndreia de Araújo Morandim Giannetti
dc.contributor.authorOrcidhttps://orcid.org/0000-0002-5428-768X
dc.date.accessioned2022-01-10T19:06:46Z
dc.date.available2022-01-10T19:06:46Z
dc.date.issued2020-03-14
dc.description.abstractEnvironmental pollution with heavy metals, especially with hexavalent chromium, is a serious problem worldwide. Therefore, in this study, the synthesis, characterization, and application of a heavy metal bioadsorbent, CMCCHDIC, were carried out. Carboxymethylcellulose (CMC) was synthesized from corn stover and reacted with chitosan (CH) using N,N′-diisopropylcarbodiimide (DIC) as a coupling reagent to obtain CMCCHDIC. CMC and CMCCHDIC were characterized by granulometric distribution of microparticles, scanning electron microscopy, Fourier transform infrared spectroscopy, thermogravimetric analysis, differential scanning calorimetry, and nuclear magnetic resonance. The ideal conditions for CMCCHDIC adsorption were determined, and 180 min of contact time, pH 2.5, and 293 K were observed to yield the best adsorption capacity. An increase in the adsorption capacity of CMCQDIC (qe = 115.78 ± 0.17 mg∙g−1) to 81.5% relative to that of pure CH (qe = 63.78 ± 0.48 mg∙g−1) was observed, and the reduction of solubility in acidic media comparing with CH, which favors the application of the bioadsorbent synthetized.
dc.description.firstpage49208
dc.description.issuenumber40
dc.description.lastpage49221
dc.description.volume137
dc.identifier.citationANDRADE NETO, J. C. ; PEREIRA, G. J.; GIANNETTI, A. DE A. M. Lignocellulosic derivative and chitosan bioadsorbent: synthesis, characterization, and performance in chromium adsorption. JOURNAL OF APPLIED POLYMER SCIENCE (ONLINE), v. 137, n. 40, p. 49208, 2020.
dc.identifier.doi10.1002/app.49208
dc.identifier.issn1097-4628
dc.identifier.urihttps://repositorio.fei.edu.br/handle/FEI/3529
dc.relation.ispartofJOURNAL OF APPLIED POLYMER SCIENCE (ONLINE)
dc.rightsAcesso Restrito
dc.subjectAdsorption
dc.subjectApplications
dc.subjectBiopolymers and renewable polymers
dc.subjectCellulose and other woodproducts
dc.titleLignocellulosic derivative and chitosan bioadsorbent: Synthesis, characterization, and performance in chromium adsorptionpt_BR
dc.typeArtigopt_BR
fei.scopus.citations5
fei.scopus.eid2-s2.0-85081745904
fei.scopus.updated2024-02-01
fei.source.urlhttps://onlinelibrary.wiley.com/doi/10.1002/app.49208
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