Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/343034
Full metadata record
DC FieldValueLanguage
dc.contributor.CRUESPUNIVERSIDADE ESTADUAL DE CAMPINASpt_BR
dc.contributor.authorunicampKhan, Adnan-
dc.typeArtigopt_BR
dc.titleEngineering functionalized chitosan-based sorbent material : characterization and sorption of toxic elementspt_BR
dc.contributor.authorKhan, Adnan-
dc.contributor.authorAli, Nisar-
dc.contributor.authorBilal, Muhammad-
dc.contributor.authorMalik, Sumeet-
dc.contributor.authorBadshah, Syed-
dc.contributor.authorIqbal, Hafiz M. N.-
dc.subjectQuitosanapt_BR
dc.subjectFuncionalizaçãopt_BR
dc.subjectMetacrilatospt_BR
dc.subject.otherlanguageChitosanpt_BR
dc.subject.otherlanguageFunctionalizationpt_BR
dc.subject.otherlanguageMethacrylatespt_BR
dc.description.abstractThe present study reports the engineering of functionalized chitosan (CH)-based biosorbent material. Herein, a two-step reaction was performed to chemically modify the CH using 1,4-bis(3-aminopropyl) piperazine to incorporate nitrogen basic centers for cations sorption from the aqueous environment. The resultant functionalized chitosan-based sorbent material was designated as CH-ANP and characterized using various analytical techniques, including elemental analysis, Fourier-transform infrared spectroscopy (FTIR), 13C NMR (in solid-state), X-ray diffraction, and thermal analysis. Then, the newly engineered CH-ANP was employed for the removal of copper, lead, and cadmium in the aqueous medium. Langmuir sorption isotherm analysis revealed that the highest sorption abilities achieved were 2.82, 1.96, and 1.60 mmol g−1 for copper, cadmium, and lead, respectively. Linear and nonlinear regression methods were deployed on the sorption data to study the behavior of the Langmuir, the Freundlich, and the Temkin sorption isotherms. Among the four different forms, the Langmuir isotherm type 1 fit well to the experimental data as compared to the other models. It also showed the lowest values of error, and a higher correlation coefficient than the Freundlich and Temkin models; thus it was the best fit with the experimental data compared to the latter two models. In conclusion, the findings suggest that chemically modified novel materials with enhanced Lewis basic centers are useful and promising candidates for the sorption of various toxic cations in aqueous solutionpt_BR
dc.relation.ispartofApplied sciencespt_BR
dc.relation.ispartofabbreviationAppl. sci.pt_BR
dc.publisher.cityBaselpt_BR
dc.publisher.countrySuíçapt_BR
dc.publisherMDPIpt_BR
dc.date.issued2019-
dc.language.isoengpt_BR
dc.description.volume9pt_BR
dc.description.issuenumber23pt_BR
dc.description.firstpage5138pt_BR
dc.rightsAbertopt_BR
dc.sourceSCOPUSpt_BR
dc.identifier.eissn2076-3417pt_BR
dc.identifier.doi10.3390/app9235138pt_BR
dc.identifier.urlhttps://www.mdpi.com/2076-3417/9/23/5138pt_BR
dc.description.sponsorshipCONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQpt_BR
dc.date.available2020-06-09T19:03:19Z-
dc.date.accessioned2020-06-09T19:03:19Z-
dc.description.provenanceSubmitted by Susilene Barbosa da Silva (susilene@unicamp.br) on 2020-06-09T19:03:19Z No. of bitstreams: 0. Added 1 bitstream(s) on 2020-09-03T11:56:08Z : No. of bitstreams: 1 2-s2.0-85076104753.pdf: 2284846 bytes, checksum: 60993084d86dd481a9a9200610665ec1 (MD5)en
dc.description.provenanceMade available in DSpace on 2020-06-09T19:03:19Z (GMT). No. of bitstreams: 0 Previous issue date: 2019en
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/343034-
dc.contributor.departmentSem informaçãopt_BR
dc.contributor.unidadeInstituto de Químicapt_BR
dc.subject.keywordSorptionpt_BR
dc.subject.keywordCharacterizationpt_BR
dc.subject.keywordCation removalpt_BR
dc.subject.keywordIsothermpt_BR
dc.identifier.source2-s2.0-85076104753pt_BR
dc.creator.orcidSem informaçãopt_BR
dc.type.formArtigopt_BR
dc.description.sponsorNoteThis research was funded by The acadmey of sciences for developing world (TWAS) and The Brazilian National Council for Scientific and Technological Development (CNPq) fellowship to AK. The APC was funded by MDPI, St. Alban-Anlage 66, 4052 Basel, Switzerlandpt_BR
Appears in Collections:IQ - Artigos e Outros Documentos

Files in This Item:
File Description SizeFormat 
2-s2.0-85076104753.pdf2.23 MBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.