Polyurethane foam impregnated with lignin as a filler for the removal of crude oil from contaminated water

Página do item simplificado
dc.creatorOlívia de Souza Heleno Santos
dc.creatorMercês Coelho da Silva
dc.creatorVirginia Ribeiro da Silva
dc.creatorWagner da Nova Mussel
dc.creatorMaria Irene Yoshida
dc.date.accessioned2023-03-03T18:34:23Z
dc.date.accessioned2025-09-09T00:15:05Z
dc.date.available2023-03-03T18:34:23Z
dc.date.issued2017-02
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Gerais
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
dc.description.sponsorshipOutra Agência
dc.identifier.doihttps://doi.org/10.1016/j.jhazmat.2016.11.004
dc.identifier.issn1873-3336
dc.identifier.urihttps://hdl.handle.net/1843/50649
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.rightsAcesso Restrito
dc.subjectQuímica ambiental
dc.subjectFísico-química
dc.subjectPetróleo - Absorção e adsorção
dc.subjectLignina
dc.subjectPoliuretanas
dc.subjectFourier, Espectroscopia de infravermelho por transformada de
dc.subjectMicroscopia eletronica de varredura
dc.subjectTermogravimetria
dc.subjectÁgua - Poluição
dc.subjectDerramamento de óleo
dc.subject.otherPolyurethane foam
dc.subject.otherCrude oil
dc.subject.otherOil removal
dc.subject.otherLignin
dc.subject.otherIsotherms
dc.subject.otherEnvironmental contamination
dc.titlePolyurethane foam impregnated with lignin as a filler for the removal of crude oil from contaminated water
dc.typeArtigo de periódico
local.citation.epage413
local.citation.issueB
local.citation.spage406
local.citation.volume324
local.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.
local.identifier.orcidhttps://orcid.org/0000-0001-9832-8386
local.identifier.orcidhttps://orcid.org/0000-0003-1158-5246
local.identifier.orcidhttps://orcid.org/0000-0002-9768-9830
local.identifier.orcidhttps://orcid.org/0000-0002-6795-9457
local.publisher.countryBrasil
local.publisher.departmentICX - DEPARTAMENTO DE QUÍMICA
local.publisher.initialsUFMG
local.url.externahttps://www.sciencedirect.com/science/article/pii/S030438941631007X

Arquivos

Licença do pacote

Agora exibindo 1 - 1 de 1
Imagem de Miniatura
Nome:
License.txt
Tamanho:
1.99 KB
Formato:
Plain Text
Descrição:
Baixar

Coleções

Artigo de Periódico

Logo UFMG