1. Repositório Institucional da UFMG
  2. Publicações Científicas e Culturais
  3. Artigo de Periódico
Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/50649
Full metadata record
DC FieldValueLanguage
dc.creatorOlívia de Souza Heleno Santospt_BR
dc.creatorMercês Coelho da Silvapt_BR
dc.creatorVirginia Ribeiro da Silvapt_BR
dc.creatorWagner da Nova Musselpt_BR
dc.creatorMaria Irene Yoshidapt_BR
dc.date.accessioned2023-03-03T18:34:23Z-
dc.date.available2023-03-03T18:34:23Z-
dc.date.issued2017-02-
dc.citation.volume324pt_BR
dc.citation.issueBpt_BR
dc.citation.spage406pt_BR
dc.citation.epage413pt_BR
dc.identifier.doihttps://doi.org/10.1016/j.jhazmat.2016.11.004pt_BR
dc.identifier.issn1873-3336pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/50649-
dc.description.resumoThe present study describes the influence of the concentration of lignin when used as a filler in polyurethane foam for crude oil sorption. The foams (lignin 0–20 wt%) were characterized by Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), thermogravimetric analysis, contact angle and density. The FTIR analysis confirmed urethane linkage formation, showing that the chemical structure of the polymer was preserved, despite the addition of different lignin concentrations. Thermogravimetric analysis showed that the presence of lignin has altered the onset temperature (Tonset) of the foams, decreasing as the concentration of lignin is increased. The contact angle analysis showed a decrease in the hydrophobicity of the foams with increasing lignin concentration. All modified foams showed an improvement in the oil sorption capacity in a PUF/oil/water system, and the PUF-10 showed an improvement of about 35.5% compared to the PUF-blank. The Langmuir isotherm showed a better fit to the data and predicted a maximum oil adsorption of 28.9 gg− ¹ by the PUF-10. The ΔG° value of −4.4 kJ mol−¹ indicated that crude oil adsorption process by PUF-10 was spontaneous. The results of reuse of the PUF-10 showed that oil removal efficiency remained greater than 95% after five consecutive cycles.pt_BR
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológicopt_BR
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Geraispt_BR
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superiorpt_BR
dc.description.sponsorshipOutra Agênciapt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentICX - DEPARTAMENTO DE QUÍMICApt_BR
dc.publisher.initialsUFMGpt_BR
dc.rightsAcesso Restritopt_BR
dc.subjectPolyurethane foampt_BR
dc.subjectCrude oilpt_BR
dc.subjectOil removalpt_BR
dc.subjectLigninpt_BR
dc.subjectIsothermspt_BR
dc.subjectEnvironmental contaminationpt_BR
dc.subject.otherQuímica ambientalpt_BR
dc.subject.otherFísico-químicapt_BR
dc.subject.otherPetróleo - Absorção e adsorçãopt_BR
dc.subject.otherLigninapt_BR
dc.subject.otherPoliuretanaspt_BR
dc.subject.otherFourier, Espectroscopia de infravermelho por transformada dept_BR
dc.subject.otherMicroscopia eletronica de varredurapt_BR
dc.subject.otherTermogravimetriapt_BR
dc.subject.otherÁgua - Poluiçãopt_BR
dc.subject.otherDerramamento de óleopt_BR
dc.titlePolyurethane foam impregnated with lignin as a filler for the removal of crude oil from contaminated waterpt_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://www.sciencedirect.com/science/article/pii/S030438941631007Xpt_BR
dc.identifier.orcidhttps://orcid.org/0000-0001-9832-8386pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0003-1158-5246pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-9768-9830pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-6795-9457pt_BR
Appears in Collections:Artigo de Periódico

Files in This Item:
There are no files associated with this item.
Show simple item record


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