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dc.creatorAbu Rabi-Stanković, Andjela S.
dc.creatorMilutinović Nikolić, Aleksandra
dc.creatorJović-Jovičić, Nataša
dc.creatorBanković, Predrag
dc.creatorŽunić, Marija
dc.creatorMojović, Zorica
dc.creatorJovanović, Dušan M.
dc.date.accessioned2019-01-30T17:32:31Z
dc.date.available2019-01-30T17:32:31Z
dc.date.issued2012
dc.identifier.issn0009-8604
dc.identifier.urihttps://cer.ihtm.bg.ac.rs/handle/123456789/1102
dc.description.abstractPhenol and its derivatives arc regarded as 'priority pollutants' and p-nitrophenol (p-NP), in particular, is of great interest due to its toxicity and frequent presence in waste waters and fresh waters. Straightforward, inexpensive methods to identify p-NP in water, however, is lacking. In the present study, an electrochemical technique using clay-modified electrodes to measure p-NP was investigated as a potentially promising method to fill that gap. A glassy carbon electrode (GCE) was modified with a thin layer of Na-enriched bentonite and a series of benzyltrimethylammonium (BTMA(+))-bentonites (BTMA(+)-B) in order to confirm these materials as p-NP electrosensitive. A series of organobentonites was synthesized using different BTMA(+)/bentonite ratios. The materials obtained were characterized using X-ray diffraction, Fourier-transform infrared spectroscopy, and a low-temperature nitrogen adsorption-desorption method. A monolayer arrangement of BTMA(+) within the interlamellar region of beidellite-rich smectite was confirmed. Deterioration of the textural properties was observed with increase of BTMA(+). loading. The electro-oxidation of p-NP in an acidic medium on BTMA(+)-B-modified GCE was investigated. The cyclic voltammetry method with a three-electrode cell was used. The reference electrode was Ag/AgCl in 3 M KCl and a Pt foil was the counter electrode. For each electrochemical measurement, a different BTMA(+) loading in BTMA(+)-B was used as the material for GCE coating and applied as the working electrode. The electrochemical activity of BTMA(+)-B-based electrodes increased with BTMA(+) loading. The results confirmed that the organophylic character of the BTMA(+)-B-modified surface was the main influence on the electrochemical activity of the BTMA(+)-B-based GCE; the influence of textural properties was almost negligible. The increased electrode activity toward p-NP was achieved by the adsorption of p-NP on the electrode surface, the process that commonly precedes the electro-oxidation. The present study showed that synthesized materials could potentially be used in an electrochemical test for the presence of p-NP in water solutions.en
dc.publisherClay Minerals Soc, Chantilly
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45001/RS//
dc.rightsrestrictedAccess
dc.sourceClays and Clay Minerals
dc.subjectBTMA(+)-bentoniteen
dc.subjectCyclovoltammetryen
dc.subjectElectrochemical Propertiesen
dc.subjectModified Electrodeen
dc.subjectPara-nitrophenolen
dc.subjectPriority Pollutanten
dc.titleP-nitrophenol electro-oxidation on a btma(+)-bentonite-modified electrodeen
dc.typearticle
dc.rights.licenseARR
dcterms.abstractМилутиновић Николић, Aлександра; Aбу Раби-Станковић, Aндјела С.; Банковић, Предраг; Зуниц, М.; Јовановиц, Д.; Јовић-Јовичић, Наташа; Мојовић, Зорица;
dc.citation.volume60
dc.citation.issue3
dc.citation.spage291
dc.citation.epage299
dc.citation.other60(3): 291-299
dc.citation.rankM23
dc.identifier.doi10.1346/CCMN.2012.0600306
dc.identifier.scopus2-s2.0-84866510589
dc.identifier.wos000308834800006
dc.type.versionpublishedVersion


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Приказ основних података о документу