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Investigation of Reactive Red 198 Dye Removal by Chitosan from Aqueous Solution      
Yazarlar
Hamiyet Özge Carbaş
Doç. Dr. Ali Eslem KADAK
Kastamonu Üniversitesi, Türkiye
Aygül Küçükgülmez Yandım
Çukurova Üniversitesi, Türkiye
Osman Gülnaz
Çukurova Üniversitesi, Türkiye
Mehmet Çelik
Çukurova Üniversitesi, Türkiye
Özet
This study used chitosan, a biopolymer with high adsorption capacity obtained from shrimp shells, to remove Reactive Red 198 dye from water. The effects of pH, temperature, dye concentration, and particle size on adsorption were investigated. The optimum pH level for the adsorption was determined as 5. The effect of the temperature was found to be adverse, and it was observed that the adsorption capacity of chitosan decreases as the temperature increases. Considering the effect of the initial dye concentration, the adsorption values of under-size chitosan (passed through a 150-mesh sieve) and over-size chitosan (retained on a 150-mesh sieve) at 200 mg/L dye concentration were 197.38 and 196.22 mg/g, respectively. At 100 mg/L dye concentration, these values were 97.41 and 96.10 mg/g, respectively. Adhesion of the Reactive Red 198 was easier because the adsorption surface area expanded with the reduction of the particle size of the chitosan. According to the results of the study, it was seen that the isotherm model of adsorption is a suitable monolayer for the Langmuir isotherm model. Langmuir isotherm’s maximum adsorption capacity (Qmax) was calculated as 500 mg/g. The kinetic model was in line with the pseudo-second-order kinetic model. The FTIR spectra of the chitosan before and after adsorption showed that the adsorption is indeed chemical. Furthermore, SEM results demonstrated that the adsorption was more efficient due to the fibrous and porous structure of the chitosan.
Anahtar Kelimeler
adsorption from aqueous solution | dye removal | RR 198 | shrimp chitosan
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı ISRAELI JOURNAL OF AQUACULTURE-BAMIDGEH
Dergi ISSN 0792-156X
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q4
Makale Dili Türkçe
Basım Tarihi 01-2023
Cilt No 75
Sayı 2
Sayfalar 1 / 9
Doi Numarası 10.46989/001c.88510
Makale Linki http://dx.doi.org/10.46989/001c.88510
BM Sürdürülebilir Kalkınma Amaçları
Atıf Sayıları
Investigation of Reactive Red 198 Dye Removal by Chitosan from Aqueous Solution

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