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dc.contributor.authorCunha, Mariene Rochefortpt_BR
dc.contributor.authorLima, Éder Cláudiopt_BR
dc.contributor.authorCimirro, Nilton Fabiano Gelos Mendespt_BR
dc.contributor.authorThue, Pascal Silaspt_BR
dc.contributor.authorDias, Silvio Luis Pereirapt_BR
dc.contributor.authorGelesky, Marcos Alexandrept_BR
dc.contributor.authorDotto, Guilherme Luizpt_BR
dc.contributor.authorReis, Glaydson Simões dospt_BR
dc.contributor.authorPavan, Flávio Andrépt_BR
dc.date.accessioned2020-01-31T04:11:57Zpt_BR
dc.date.issued2018pt_BR
dc.identifier.issn0944-1344pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/205139pt_BR
dc.description.abstractEragrostis plana Nees leaves, abundant lignocellulosic biomass, was used as carbon source for preparation of activated carbon, by using microwave-assisted pyrolysis and chemical activation. The novel activated carbon (MWEPN) was characterised by FTIR, CHN elemental analysis, Boehm’s titration method, TGA, SEM, N2 adsorption/desorption curves and pH of the point of zero charge (pHpzc). Afterwards, the adsorbent was successfully employed for adsorption of the two emerging contaminants (caffeine and 2-nitrophenol). The results indicated that MWEPN had a predominantly mesoporous structure with a high surface area of 1250 m2 g−1. FTIR analysis indicated the presence of carbonyl, hydroxyl and carboxylic groups on the surface of MWEPN. The Boehm analysis showed the existence of the high amount of acid moieties on the surface of activated carbon. Adsorption kinetic indicated that the system followed the Avrami fractional order at the optimal pH of 7. The equilibrium time was attained at 30 min. The Liu isotherm model better described the isothermal data. Based on the Liu isotherm, the maximum sorption capacities (Qmax) of caffeine and 2-nitrophenol adsorbed onto activated carbon at 25 °C were 235.5 and 255.8 mg g−1, respectively.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofEnvironmental Science and Pollution Research. Alemanha. Vol. 25, no. 23 (Aug. 2018), p. 23315-23327pt_BR
dc.rightsOpen Accessen
dc.subjectCarvão ativadopt_BR
dc.subjectPirólise assistida por microondaspt_BR
dc.subjectContaminante emergentept_BR
dc.subjectCafeínapt_BR
dc.subject2-Nitrofenolpt_BR
dc.titleConversion of Eragrostis plana Nees leaves to activated carbon by microwave-assisted pyrolysis for the removal of organic emerging contaminants from aqueous solutionspt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb001096147pt_BR
dc.type.originEstrangeiropt_BR


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