Repository logo
 
Publication

Enhancement of p-nitrophenol adsorption capacity throughN2-thermal-based treatment of activated carbons

2017Journal article Open access
Simple item page
dc.contributor.authorÁlvarez-Torrellas, Silvia
dc.contributor.authorMartin-Martinez, Maria
dc.contributor.authorGomes, Helder
dc.contributor.authorOvejero, Gabriel
dc.contributor.authorGarcía, Juan
dc.date.accessioned2018-01-31T10:00:00Z
dc.date.accessioned2018-01-31T15:40:25Z
dc.date.available2018-01-31T10:00:00Z
dc.date.available2018-01-31T15:40:25Z
dc.date.issued2017
dc.description.abstractIn this work several activated carbons showing different textural and chemical properties were obtained by chemical and physical activation methods, using a lignocellulosic material (peach stones) as precursor. The activated carbon resulting from the chemical activation, namely as CAC, revealed the best textural properties (S BET = 1521 m 2 g −1 , pore volume = 0.90 cm 3 g −1 ) and an acidic character. It was found that the activated carbon obtained at 300 °C (under air atmosphere, PAC_air), and those synthesized at 750 °C in presence of N 2 flow with bubbling of water/12 M H 3 PO 4 solution (PAC_N 2 (H 2 O)/PAC_N 2 (H 3 PO 4 )), respectively, revealed worse textural properties, compared to CAC. Two functionalization treatments, by using sulphuric acid at boiling temperature (PACS) and nitric acid-urea-N 2 heating at 800 °C (PAC-NUT), were applied to PAC_air, in order to enhance the adsorption ability of the carbon material. Several techniques were carried out to characterize the physical and chemical properties of the obtained carbon materials. The modification treatments had influence on the carbon surface properties, since the nitric acid-urea-N 2 heating treatment led to a carbon material with highly-improved properties (S BET = 679 m 2 g −1 , pH IEP = 5.3). Accordingly, the original and modified-carbon materials were tested as adsorbents to remove 4-nitrophenol (4-NP), assessing batch and fixed-bed column adsorption tests. PAC-NUT carbon offered the best adsorption behavior (q e = 234 mg g −1 ), showing a high ability for the removal of 4-NP from water.en_EN
dc.description.sponsorshipThe authors would like to thank the financial supportof Ministry of Economía and Competitividad of Spain (Con-tract CTQ2014-59011-R REMEWATER and TRAGUANET NetworkCTM2014-53485-REDC), the Regional Government of Madridprovided through Project REMTAVARES S2013/MAE-2716 andthe European Social Fund, and Project POCI-01-0145-FEDER-006984 – Associate Laboratory LSRE-LCM, funded by FEDERthrough COMPETE2020 – Programa Operacional Competitividadee Internacionalizac¸ ão (POCI) – and by national funds through FCT– Fundac¸ ão para a Ciéncia e a Tecnologia. M. Martin-Martinezacknowledges financial support from the FCT Postdoctoral grantSFRH/BPD/108510/2015. S. Álvarez-Torrellas acknowledges alsothe funding provided by the Spanish Ministry of Economy andCompetitiveness (MINECO) through Juan de la Cierva-FormacionContract.
dc.description.versioninfo:eu-repo/semantics/publishedVersionen_EN
dc.identifier.citationÁlvarez-Torrellas, Silvia; Martin-Martinez, Maria; Gomes, Helder; Ovejero, G.; García, Juan (2017). Enhancement of p-nitrophenol adsorption capacity throughN2-thermal-based treatment of activated carbons. Applied Surface Science. ISSN 0169-4332. 414, p. 424-434en_EN
dc.identifier.doi10.1016/j.apsusc.2017.04.054en_EN
dc.identifier.issn0169-4332
dc.identifier.urihttp://hdl.handle.net/10198/15352
dc.language.isoeng
dc.peerreviewedyesen_EN
dc.relationTreatment of oily wastewater by oxidation with amphiphilic carbon-based catalysts
dc.subject4-Nitrophenolen_EN
dc.subjectActivated carbonen_EN
dc.subjectAdsorptionen_EN
dc.subjectFixed-bed columnen_EN
dc.titleEnhancement of p-nitrophenol adsorption capacity throughN2-thermal-based treatment of activated carbonsen_EN
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleTreatment of oily wastewater by oxidation with amphiphilic carbon-based catalysts
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/FARH/SFRH%2FBPD%2F108510%2F2015/PT
oaire.fundingStreamFARH
person.familyNameGomes
person.givenNameHelder
person.identifier.ciencia-id6218-1E19-13EE
person.identifier.orcid0000-0001-6898-2408
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccessen_EN
rcaap.typearticleen_EN
relation.isAuthorOfPublication0eb96337-224a-4339-9918-334436fbbb99
relation.isAuthorOfPublication.latestForDiscovery0eb96337-224a-4339-9918-334436fbbb99
relation.isProjectOfPublication4086a8ad-e377-4cd2-9dac-fa7a376369ac
relation.isProjectOfPublication.latestForDiscovery4086a8ad-e377-4cd2-9dac-fa7a376369ac

Files

Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
16.pdf
Size:
4.04 MB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.75 KB
Format:
Plain Text
Description:
Download

Collections

CIMO - Artigos em Revistas Indexados à WoS/Scopus