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dc.creatorVukcevic, Marija M.
dc.creatorPejic, Biljana M.
dc.creatorPajić-Lijaković, Ivana
dc.creatorKalijadis, Ana
dc.creatorKostić, Mirjana M.
dc.creatorLaušević, Zoran
dc.creatorLausevic, Mila D.
dc.date.accessioned2018-03-01T18:05:35Z
dc.date.available2018-03-01T18:05:35Z
dc.date.issued2017
dc.identifier.issn0352-5139
dc.identifier.urihttp://vinar.vin.bg.ac.rs/handle/123456789/1897
dc.description.abstractWaste hemp (Cannabis sativa) fibers were used as sustainable and renewable raw materials for production of low-cost biocarbon sorbent for heavy metals removal. Carbon precursors of different chemical composition were obtained by oxidative and alkaline treatments of hemp fibers. Influence of lignocellulosic precursor chemical composition on hemp fibers-based biocarbon (HFB) characteristics was examined by BET surface area measurement, scanning electron microscopy and mass titration. It was found that lignin content and polymorphic transformation of cellulose increase the SBET of microporous HFBs, while hemicelluloses induce more homogeneous distribution of adsorption active sites. Heavy metal ions adsorption onto HFBs is primarily influenced by the amount of surface oxygen groups, while specific surface area plays a secondary role. Equilibrium data obtained for lead ions adsorption were analyzed by different nonlinear adsorption isotherms, and the best fitting model was chosen using standard deviation and Akaike information criterion (AIC(C)). The maximum adsorption capacities of HFBs ranged from 103.1 to 116.3 mg Pb/g. Thermodynamic parameters showed that Pb2+ adsorption onto HFBs is a spontaneous and complex endothermic process, suggesting the coexistence of physisorption and chemisorption mechanisms.en
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172007/RS//
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172029/RS//
dc.rightsopenAccessen
dc.sourceJournal of the Serbian Chemical Societyen
dc.subjecthemp fibersen
dc.subjectchemical compositionen
dc.subjectbiocarbonen
dc.subjectheavy metal ionsen
dc.subjectAdsorption mechanismen
dc.titleInfluence of the precursor chemical composition on heavy metal adsorption properties of hemp (Cannabis Sativa) fibers based biocarbonen
dc.typearticleen
dcterms.abstractВукцевиц, Марија М.; Пајиц-Лијаковиц, Ивана С.; Лаусевиц, Мила Д.; Пејиц, Биљана М.; Калијадис Aна; Костиц, Мирјана М.; Лаушевић Зоран;
dc.citation.volume82
dc.citation.issue12
dc.citation.spage1417
dc.citation.epage1431
dc.identifier.wos000419391700008
dc.identifier.doi10.2298/JSC170310080V
dc.citation.rankM23
dc.identifier.scopus2-s2.0-85040091880
dc.identifier.fulltexthttp://vinar.vin.bg.ac.rs//bitstream/id/12196/1893.pdf


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