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 | Acesso ao texto completo restrito à biblioteca da Embrapa Meio Ambiente. Para informações adicionais entre em contato com cnpma.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
31/01/2017 |
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Data da última atualização: |
31/01/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
GONÇALVES, S. P. C.; STRAUSS, M.; DELITE, F. de S.; CLEMENTE, Z.; CASTRO, V. L. S. S. de; MARTINEZ, D. S. T. |
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Afiliação: |
SUELI PATRICIA COSTA GONCALVES, CNPEM; MATHIAS STRAUSS, CNPEM; FABRICIO DE SOUZA DELITE, CNPEM; ZAIRA CLEMENTE, CNPEM; VERA LUCIA SCHERHOLZ S DE CASTRO, CNPMA; DIEGO STEFANI TEODORO MARTINEZ, FCA-UNICAMP. |
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Título: |
Activated carbon from pyrolysed sugarcane bagasse: silver nanoparticle modification and ecotoxicity assessment. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Science of The Total Environment, v. 565, p. 833?840, 2016. |
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DOI: |
http://dx.doi.org/10.1016/j.scitotenv.2016.03.041 |
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Idioma: |
Inglês |
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Conteúdo: |
Activated carbon from pyrolysed sugarcane bagasse (ACPB) presented pore size ranges from 1.0 to 3.5 nm, and surface area between 1200 and 1400 m2 g? 1 that is higher than commonly observed to commercial activated carbon. The ACPB material was successfully loaded with of silver nanoparticles with diameter around 35 nm (0.81 wt.%). X-ray photoelectron spectroscopy (XPS) analyses showed that the material surface contains metallic/Ag0 (93.60 wt.%) and ionic/Ag+ states (6.40 wt.%). The adsorption capacity of organic model molecules (i.e. methylene blue and phenol) was very efficient to ACPB and ACPB loaded with silver nanoparticles (ACPB-AgNP), indicating that the material modification with silver nanoparticles has not altered its adsorption capacity. ACPB-AgNP inhibited bacteria growth (Escherichia coli), it is a promising advantage for the use of these materials in wastewater treatment and water purification processes. However, ACPB-AgNP showed environmental risks, with toxic effect to the aquatic organism Hydra attenuata (i.e. LC50 value of 1.94 mg L? 1), and it suppressed root development of Lycopersicum esculentum plant (tomato). Finally, this work draw attention for the environmental implications of activated carbon materials modified with silver nanoparticles. |
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Palavras-Chave: |
Econanotoxicology; Functionalization; Metallic nanoparticles; Nanomateriais; Porous carbon. |
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Thesagro: |
Bagaço; Cana de açúcar; Carvão; Metal; Toxidez; Tratamento da água. |
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Thesaurus NAL: |
Nanoparticles; Nanosilver. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02328naa a2200349 a 4500
001 2062299
005 2017-01-31
008 2016 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1016/j.scitotenv.2016.03.041$2DOI
100 1 $aGONÇALVES, S. P. C.
245 $aActivated carbon from pyrolysed sugarcane bagasse$bsilver nanoparticle modification and ecotoxicity assessment.$h[electronic resource]
260 $c2016
520 $aActivated carbon from pyrolysed sugarcane bagasse (ACPB) presented pore size ranges from 1.0 to 3.5 nm, and surface area between 1200 and 1400 m2 g? 1 that is higher than commonly observed to commercial activated carbon. The ACPB material was successfully loaded with of silver nanoparticles with diameter around 35 nm (0.81 wt.%). X-ray photoelectron spectroscopy (XPS) analyses showed that the material surface contains metallic/Ag0 (93.60 wt.%) and ionic/Ag+ states (6.40 wt.%). The adsorption capacity of organic model molecules (i.e. methylene blue and phenol) was very efficient to ACPB and ACPB loaded with silver nanoparticles (ACPB-AgNP), indicating that the material modification with silver nanoparticles has not altered its adsorption capacity. ACPB-AgNP inhibited bacteria growth (Escherichia coli), it is a promising advantage for the use of these materials in wastewater treatment and water purification processes. However, ACPB-AgNP showed environmental risks, with toxic effect to the aquatic organism Hydra attenuata (i.e. LC50 value of 1.94 mg L? 1), and it suppressed root development of Lycopersicum esculentum plant (tomato). Finally, this work draw attention for the environmental implications of activated carbon materials modified with silver nanoparticles.
650 $aNanoparticles
650 $aNanosilver
650 $aBagaço
650 $aCana de açúcar
650 $aCarvão
650 $aMetal
650 $aToxidez
650 $aTratamento da água
653 $aEconanotoxicology
653 $aFunctionalization
653 $aMetallic nanoparticles
653 $aNanomateriais
653 $aPorous carbon
700 1 $aSTRAUSS, M.
700 1 $aDELITE, F. de S.
700 1 $aCLEMENTE, Z.
700 1 $aCASTRO, V. L. S. S. de
700 1 $aMARTINEZ, D. S. T.
773 $tScience of The Total Environment$gv. 565, p. 833?840, 2016.
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