Magnetizing Calixarene: Azo Dye Removal from Aqueous Media by Fe3O4 Nanoparticles Fabricated with Carboxylic-Substituted Calix[4]arene

Basit Öğe Kaydı
dc.contributor.authorBhatti, Asif Ali
dc.contributor.authorOguz, Mehmet
dc.contributor.authorYilmaz, Mustafa
dc.date.accessioned2020-03-26T19:42:02Z
dc.date.available2020-03-26T19:42:02Z
dc.date.issued2017
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractCalix[4]arene was reacted with isonipecotic acid to synthesize the Mannich base derivative, and Fe3O4 magnetic nanoparticles were bonded to the lower rim of the calix[4]arene derivative through ether linkage to obtain carboxylic calix[4]arene magnetic nanoparticles (CCMN). After characterization with transmission electron microscopy and Fourier transform infrared spectroscopy, adsorption studies were carried out for the removal of azo dyes (Evans Blue and Chicago Sky Blue 6 B). Adsorption parameters such as effects of pH, dosage, concentration, temperature, and time were optimized. Results showed that adsorption equilibrium was achieved within 15 min, and maximum % adsorption was calculated as 95% for both dyes at pH 2.5. An equilibrium isotherm study suggests that the adsorption mechanism follows a chemical ion exchange process with an adsorption capacity value of 13.9 and 17.5 mmol g(-1) for Evans Blue and Chicago Sky Blue 6 B, respectively. The adsorption kinetic follows pseudo second-order kinetics as anticipated from R-2 values, whereas thermodynamic parameters suggest an endothermic reaction that can also be evident from Delta G degrees values, which decreased with an increase in temperature suggesting a spontaneous reaction. In addition, the dye removal efficiency of CCMN was hardly effected after 10 consecutive cycles. The study suggests that the magnetically retrievable calix[4]arene is a promising adsorbent for removal of azo dyes from aqueous solution.en_US
dc.description.sponsorshipResearch Foundation of Selcuk University (BAP)Selcuk Universityen_US
dc.description.sponsorshipWe would like to thank The Research Foundation of Selcuk University (BAP) for their financial support of this work.en_US
dc.identifier.doi10.1021/acs.jced.7b00128en_US
dc.identifier.endpage2825en_US
dc.identifier.issn0021-9568en_US
dc.identifier.issue9en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage2819en_US
dc.identifier.urihttps://dx.doi.org/10.1021/acs.jced.7b00128
dc.identifier.urihttps://hdl.handle.net/20.500.12395/35269
dc.identifier.volume62en_US
dc.identifier.wosWOS:000411171500038en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherAMER CHEMICAL SOCen_US
dc.relation.ispartofJOURNAL OF CHEMICAL AND ENGINEERING DATAen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.titleMagnetizing Calixarene: Azo Dye Removal from Aqueous Media by Fe3O4 Nanoparticles Fabricated with Carboxylic-Substituted Calix[4]areneen_US
dc.typeArticleen_US

Dosyalar

Koleksiyon

WoS İndeksli Yayınlar Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu