Obtaining activated-carbon from Zivzik (Siirt) pomegranate waste by chemical activation and model dye adsorption

dc.authorid0000-0002-1566-6089en_US
dc.authorid0000-0001-6342-6816en_US
dc.authorid0000-0001-6247-4285en_US
dc.contributor.authorKuyucu, Ali
dc.contributor.authorSelçuk, Ahmet
dc.contributor.authorÖnal, Yunus
dc.date.accessioned2022-04-20T08:22:28Z
dc.date.available2022-04-20T08:22:28Z
dc.date.issued2020en_US
dc.departmentMTÖ Üniversitesien_US
dc.description.abstractIn this study, activated carbon, obtained from Zivzik Pomegrate (Siirt-TURKEY), has been used as adsorbent matter. The activated-carbon has been prepared with chemical activation using ZnC12. BET surface area has been measured as 1513.05 m2 /g. Methylene Blue and Crystal Violet have been used as dyestuffs. It has been investigated the effect of initial pH, initial dye concentration and temperature on adsorption. Four different initials concentrations have been used for both dyestuffs. It has been observed that the initial pH does not affect the adsorption capacity. The compatibility with four different adsorption isotherms has been investigated and it is approved that it fits the Langmuir adsorption isotherm. For both dyes; RL value, which is the dimensionless separation factor found using KL value from Langmuir parameters, was found to be 0.001. This result shows that the adsorption process is efficient. Also, it was seen that the correlation factor R2 for both dyes calculated from the graph drawn according to the Langmuir isotherm has a high value such as 0,999. Three different kinetic models (the pseudo first order model, the pseudo second order model and the Elovich equation) have been investigated by doing experimental studies at three different temperatures with different initial concentrations. Correlation coefficient R2 is; for Methylene Blue 0.99 and for Crystal Violet 0.99. Since the qe values calculated with the experimental qe values are compatible with each other, it was observed that our study is more suitable for the Pseudo 2nd Order Kinetic model. The entropy (?S ?) values are 51.717 J/molK for Methylene Blue and 70.817 J/molK for Crystal Violet, respectively. The positive values of ?S ?reflect the affinity of adsorbent material towards Methylene Blue and Crystal Violet. In addition, it has been observed that adsorption is reversible and endothermicen_US
dc.identifier.citationKuyucu, A. , Selçuk, A. & Önal, Y. (2020). Obtaining activated-carbon from Zivzik (Siirt) pomegranate waste by chemical activation and model dye adsorption . NATURENGS , 1 (2) , 97-107 .en_US
dc.identifier.doi10.46572/nat.2020.20
dc.identifier.endpage107en_US
dc.identifier.issn2717-8013en_US
dc.identifier.issue2en_US
dc.identifier.startpage97en_US
dc.identifier.urihttps://dergipark.org.tr/tr/pub/naturengs/issue/59260/846764
dc.identifier.urihttps://hdl.handle.net/20.500.12899/1017
dc.identifier.volume1en_US
dc.language.isoenen_US
dc.publisherMalatya Turgut Özal Üniversitesien_US
dc.relation.ispartofNATURENGSen_US
dc.relation.publicationcategoryMakale - Ulusal Hakemli Dergi - Başka Kurum Yazarıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectAdsorptionen_US
dc.subjectActivated Carbonen_US
dc.subjectDyeen_US
dc.subjectİsothermen_US
dc.subjectKineticen_US
dc.titleObtaining activated-carbon from Zivzik (Siirt) pomegranate waste by chemical activation and model dye adsorptionen_US
dc.typeArticleen_US

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