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dc.creatorŠušić, Milenko V.
dc.creatorPetranović, Nadeẑda A.
dc.creatorMiočinović, B.
dc.date.accessioned2021-05-26T13:06:45Z
dc.date.available2021-05-26T13:06:45Z
dc.date.issued1972
dc.identifier.issn0022-1902
dc.identifier.urihttps://cer.ihtm.bg.ac.rs/handle/123456789/4665
dc.description.abstractThe adsorption of methylene blue from aqueous and non-aqueous media onto the zeolite NaA, the occluded zeolite NaANaNO3 and the denitrated zeolite NaANa2O has been investigated. Adsorption isotherms have a standard form and a monolayer adsorption on the zeolite NaA is suggested on the basis of linear Langmuir plots. Demethylation of methylene blue in the presence of the denitrated zeolite has been shown from the changes in the absorption spectrum of the solution. In an alcoholic medium the demethylation is partial and yields the neutral trimethylthionine, TMT. In aqueous medium the demethylation process leads to the completely demethylated product, thionine, and the reaction occurs as a secondary process on the zeolite surface. The demethylation is base catalyzed by the activity of the strongly electronegative surface of the denitrated zeolite NaANa2O. A mechanism of demethylation in aqueous and alcoholic media has been suggested.sr
dc.language.isoensr
dc.publisherElseviersr
dc.rightsrestrictedAccesssr
dc.sourceJournal of Inorganic and Nuclear Chemistrysr
dc.subjectzeolitesr
dc.subjectoccluded and nonoccluded synthetic zeolitessr
dc.subjectdemethylationsr
dc.subjectdenitrated zeolitesr
dc.titleInvestigation of occluded and nonoccluded synthetic zeolites. Base-catalyzed demethylation of tetramethylthionine-methylene blue on a denitrated zeolitesr
dc.typearticlesr
dc.rights.licenseARRsr
dcterms.abstractШушић, Миленко В.; Петрановић, Надеẑда A.; Миочиновић, Б.;
dc.citation.volume34
dc.citation.issue7
dc.citation.spage2349
dc.citation.epage2356
dc.identifier.doi10.1016/0022-1902(72)80171-4
dc.identifier.scopus2-s2.0-0042766445
dc.type.versionpublishedVersionsr


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Приказ основних података о документу