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dc.contributor.authorGeçgel, Ünal
dc.contributor.authorKocabıyık, Barış
dc.contributor.authorÜner, Osman
dc.description.abstractIn this study, the fruit of Catalpa bignonioides was used as the raw material to obtain low-cost activated carbon. The activation process was carried out by using chemical activation method with zinc chloride. Catalpa activated carbon (CAC) was characterized using elemental analyzer, Brunauer-Emmet-Teller (BET), scanning electron microscopy (SEM), Fourier transform infrared spectra (FTIR), and the point of zero charge (pHZPC). The BET surface area of CAC prepared by the impregnation ratio of 30% ZnCl2 (w/w) was found to be 896.02 m(2)/g. The efficiency in the process of the removal of methylene blue (MB) from aqueous solution by CAC was searched with different factors, such as temperature, pH, adsorbent concentration, dye concentration, and contact time. From the experimental data obtained, the studies related to adsorption isotherm, kinetics, and thermodynamics were performed. Langmuir model provided the best fit, and the adsorption capacity for the removal of methylene blue from aqueous solution by CAC was calculated to be 271.00 mg/g at 25 degrees C. The adsorption follows a pseudo-second-order kinetic model. Moreover, the thermodynamic parameters such as Delta G degrees, Delta H degrees, and Delta S degrees presented that the adsorption was spontaneous and endothermic.en_US
dc.publisherSpringer International Publishing Agen_US
dc.relation.ispartofWater Air and Soil Pollutionen_US
dc.subjectActivated carbonen_US
dc.subjectMethylene blueen_US
dc.titleAdsorptive Removal of Methylene Blue from Aqueous Solution by the Activated Carbon Obtained from the Fruit of Catalpa bignonioidesen_US
dc.authoridGECGEL, UNAL/0000-0002-4277-2127
dc.authoriduner, osman/0000-0001-6950-6753
dc.departmentFakülteler, Fen-Edebiyat Fakültesi, Kimya Bölümü
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.authorwosidGECGEL, UNAL/AAC-9487-2019
dc.authorwosidKOCABIYIK, Baris/ABA-6704-2020
dc.authorwosiduner, osman/B-5357-2018

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