Removal of Diazo Dye Direct Red 28 and Tetra Azo Dye Direct Black 22 Using Synthesized Magnetic Kaolin Supported Zinc Ferrite
| dc.contributor.author | Fındık, Serap | |
| dc.date.accessioned | 2023-01-25T13:42:18Z | |
| dc.date.available | 2023-01-25T13:42:18Z | |
| dc.date.issued | 2022 | en_US |
| dc.department | Hitit Üniversitesi, Mühendislik Fakültesi, Kimya Mühendisliği Bölümü | |
| dc.description.abstract | The presence of dye molecules in water resources has harmful effects on environment. Therefore, it is important to remove dyes from wastewater using eco-friendly materials. In this study, adsorptive removal of diazo dye Direct Red 28 (DR-28) and tetra azo dye Direct Black 22 (DB-22) was investigated by using a new composite, kaolin supported zinc ferrite (KZF) as adsorbent. Characteristics of the composite, KZF were determined using various techniques such as FTIR, SEM, XRD, VSM, and EDS/Mapping. The adsorption of DR-28 and DB-22 on KZF was studied as a function of contact time, initial dye concentration, adsorbent amount, temperature, initial pH of the solution as well as the heat treatment of the composite. The removal of DR-28 was found to be 92.4% for the KZF concentration of 1g/200mL, initial dye concentration of 20 mg/L, contact time of 120 min at original pH and 21 °C. On the other hand the removal of DB22 was found to be 91.7% under the same conditions at 40 °C. The results showed that Langmuir isotherm is suitable for the adsorption of DR-28 and DB-22 on KZF under given conditions. It was found that adsorption of DR-28 on KZF was exothermic while that of DB-22 was endothermic. The enthalpy changes (?H0) for the adsorption of DR-28 and DB-22 dyes on KZF were found to be –24.59 kJ/mol and 61.95 kJ/mol respectively. ?S0 for the adsorption of DR-28 dye was found to be negative while ?S0 for the adsorption of DB-22 was positive. The kinetic data fitted well to the pseudo second order model for the adsorption of DR-28 and DB-22 on KZF composite. These results showed that the prepared adsorbent KZF could be used as an adsorbent for the efficient removal of anionic dyes. | |
| dc.identifier.citation | Findik, S. (2022). Removal of Diazo Dye Direct Red 28 and Tetra Azo Dye Direct Black 22 Using Synthesized Magnetic Kaolin Supported Zinc Ferrite. Acta Chimica Slovenica, 69(2), 336-348. | |
| dc.identifier.doi | 10.17344/acsi.2021.7289 | |
| dc.identifier.endpage | 348 | en_US |
| dc.identifier.issn | 1318-0207 | |
| dc.identifier.issue | 2 | en_US |
| dc.identifier.pmid | 35861097 | |
| dc.identifier.scopusquality | Q3 | |
| dc.identifier.startpage | 336 | en_US |
| dc.identifier.uri | http://dx.doi.org/10.17344/acsi.2021.7289 | |
| dc.identifier.uri | https://hdl.handle.net/11491/8414 | |
| dc.identifier.volume | 69 | en_US |
| dc.identifier.wos | WOS:000883415800010 | |
| dc.identifier.wosquality | Q4 | |
| dc.indekslendigikaynak | Web of Science | |
| dc.indekslendigikaynak | Scopus | |
| dc.indekslendigikaynak | PubMed | |
| dc.language.iso | en | |
| dc.publisher | SLOVENSKO KEMIJSKO DRUSTVO | |
| dc.relation.ispartof | ACTA CHIMICA SLOVENICA | |
| dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | |
| dc.rights | info:eu-repo/semantics/openAccess | |
| dc.subject | Adsorption | en_US |
| dc.subject | Direct black 22 | en_US |
| dc.subject | Direct red 28 | en_US |
| dc.subject | Magnetic kaolin | en_US |
| dc.subject | Zinc ferrite | en_US |
| dc.title | Removal of Diazo Dye Direct Red 28 and Tetra Azo Dye Direct Black 22 Using Synthesized Magnetic Kaolin Supported Zinc Ferrite | |
| dc.type | Article |
