Effective Removal of the Direct Black-38 Dye from Wastewater Using a New Silica-Modified Resin: Equilibrium and Thermodynamics Modeling Studies

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dc.authoridJunejo, Ranjhan/0000-0002-0090-1146
dc.contributor.authorJunejo, Ranjhan
dc.contributor.authorMemon, Shahabuddin
dc.contributor.authorKaya, Savas
dc.date.accessioned2024-10-26T18:06:03Z
dc.date.available2024-10-26T18:06:03Z
dc.date.issued2020
dc.departmentSivas Cumhuriyet Üniversitesi
dc.description.abstractIn this study, the synthesis of p-diethanolaminomethylcalix[4]arene and its immobilization on a silica surface have been performed for the removal of the direct black (DB-38) dye from wastewater samples. The newly synthesized p-diethanolaminomethylcalix[4]arene-immobilized silica (DIS) resin has been analyzed and characterized by FTIR spectroscopy and SEM techniques. To check the efficiency of the DIS resin, batch and column adsorption procedures have been applied under the optimized parameters, i.e., resin dosage, pH, and temperature. To validate the experimental data, Langmuir, Freundlich, and D-R models have been applied. The results show that adsorption follows the Freundlich model well with a good correlation coefficient (R-2 = 0.999). Moreover, the energy E (kJ/mol) was calculated with the help of the D-R model, which suggested that the adsorption has an ion exchange nature. The DIS resin was also applied to real industrial samples of DB-38 dye wastewater. The results show that the DIS resin removes 99% of the dye successfully. Thermodynamics studies were conducted to know the feasibility and the mechanism of the adsorption reaction. The thermodynamic parameters show that the adsorption is spontaneous and exothermic. The theoretical calculation was performed at the B3LYP/DZP calculation level of the ADF program, and the power of the interaction between adsorbent and dye molecules can be determined in the light of chemical reactivity analysis.
dc.description.sponsorshipNational Centre of Excellence in Analytical Chemistry, University of Sindh Jamshoro
dc.description.sponsorshipWe are thankful to the National Centre of Excellence in Analytical Chemistry, University of Sindh Jamshoro for their support and help.
dc.identifier.doi10.1021/acs.jced.0c00292
dc.identifier.endpage4814
dc.identifier.issn0021-9568
dc.identifier.issn1520-5134
dc.identifier.issue10
dc.identifier.scopus2-s2.0-85092032455
dc.identifier.scopusqualityQ2
dc.identifier.startpage4805
dc.identifier.urihttps://doi.org/10.1021/acs.jced.0c00292
dc.identifier.urihttps://hdl.handle.net/20.500.12418/29336
dc.identifier.volume65
dc.identifier.wosWOS:000580554200007
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherAmer Chemical Soc
dc.relation.ispartofJournal of Chemical and Engineering Data
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.titleEffective Removal of the Direct Black-38 Dye from Wastewater Using a New Silica-Modified Resin: Equilibrium and Thermodynamics Modeling Studies
dc.typeArticle

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