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Alkali-activated fly ash modified with polyethyleneimine as adsorbent for methylene blue removal from water

dc.creatorMaletić, Marina
dc.creatorŽižović, Sara
dc.creatorVukčević, Marija
dc.creatorMilošević, Milena
dc.creatorKarić, Nataša
dc.creatorTrivunac, Katarina
dc.creatorPerić-Grujić, Aleksandra
dc.date.accessioned2023-08-22T08:49:31Z
dc.date.available2023-08-22T08:49:31Z
dc.date.issued2023
dc.identifier.isbn978-86-7132-081-8
dc.identifier.urihttp://TechnoRep.tmf.bg.ac.rs/handle/123456789/6603
dc.description.abstractU cilju iskorišćenja industrijskog otpada, leteći pepeo je modifikovan radi dobijanja efikasnih adsorbenata za uklanjanje metilensko plavog iz vode. Leteći pepeo je aktiviran u prisustvu NaOH na 550oC, i modifikovan različitim količinama polietilenimina. Karakterizacija polaznog i modifikovanih uzoraka izvršena je skenirajućom elektronskom mikroskopijom i infracrvenom spektroskopijom sa Furijeovom transformacijom. Ispitan je uticaj vremena kontakta i početne koncentracije adsorbata na adsorpcione kapacitete nemodifikovanog i modifikovanog letećeg pepela. Pokazano je da adsorpcione karakteristike zavise od količine dodatog polietilenimina, kao i da adsorpcija prati brzinu pseudo-drugog reda, a ravnotežni adsorpcioni podaci pokazuju bolje slaganje sa Frojndlihovom izotermom.
dc.description.abstractIn attempt to reuse industrial waste, fly ash was modified and converted into efficient adsorbent for the removal of methylene blue from water. Fly ash was activated in the presence of NaOH at 550oC, and modified with different amounts of polyethyleneimine. The raw and modified samples were characterized by scanning electron microscopy and Fourier transform infrared spectroscopy. The influence of contact time and initial adsorbate concentration on the adsorption capacity of unmodified and modified fly ash was also examined. It has been shown that the adsorption characteristics depend on the amount of polyethyleneimine added, that the adsorption follows a pseudo-second-order rate, and the equilibrium adsorption data show better agreement with the Freundlich isotherm.
dc.language.isosrsr
dc.publisherBeograd : Srpsko hemijsko društvosr
dc.relationinfo:eu-repo/grantAgreement/ScienceFundRS/Ideje/7743343/RS//sr
dc.rightsopenAccesssr
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.sourceKratki izvodi radova ; Knjiga radova / 59. savetovanje Srpskog hemijskog društva, Novi Sad 1. i 2. jun 2023. godinesr
dc.titleAlkalno aktivirani leteći pepeo modifikovan polietileniminom kao adsorbent za uklanjanje metilensko plavog iz vodesr
dc.titleAlkali-activated fly ash modified with polyethyleneimine as adsorbent for methylene blue removal from watersr
dc.typeconferenceObjectsr
dc.rights.licenseBYsr
dc.citation.spage126
dc.identifier.fulltexthttp://TechnoRep.tmf.bg.ac.rs/bitstream/id/17763/bitstream_17763.pdf
dc.identifier.rcubhttps://hdl.handle.net/21.15107/rcub_technorep_6603
dc.type.versionpublishedVersionsr


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