Scopus
YÖKSİS DOI Eşleşti
Preparation of new polysulfone capsules containing Cyanex 272 and their properties for Co(II) removal from aqueous solution
Journal of Environmental Chemical Engineering · Temmuz 2015
YÖKSİS Kayıtları
Preparation of new polysulfone capsules containing Cyanex 272 and their properties for Co II removal from aqueous solution
Journal of Environmental Chemical Engineering · 2015 Endekste taranmıyor
Prof. Dr. GÜLŞİN ARSLAN →
Makale Bilgileri
Dergi
Journal of Environmental Chemical Engineering
Yayın TarihiTemmuz 2015
Cilt / Sayfa3 · 1654-1661
Scopus ID2-s2.0-84947446316
Özet
In this study, new polysulfone capsules containing Cyanex 272 (Cyanex 272@PSF capsules) were prepared by phase inversion technique for the sorption of Co(II) from aqueous solution. The characterization of the Cyanex 272@PSF capsules which were performed by using Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX) and thermal gravimetric analysis (TGA) indicated that Cyanex 272 was successfully encapsulated by polysulfone. For the Cyanex 272@PSF capsules having the highest sorption efficiency, the encapsulation efficiency was determined as 7.2%. The batch sorption experiments showed that removal of Co(II) from aqueous solutions occurred through the cation-exchange and chelation mechanisms and maximum removal was achieved at an initial pH of 8.0 (final pH of 5.9). The Cyanex 272@PSF capsules produced with dispersed phase containing 2.0% of Cyanex 272 (by wt.) provided the highest Co(II) removal. The sorption equilibrium time was attained within 120 min. By confirming the non-linear Chi-square (χ2) statistical test, Langmuir isotherm model was the best fit model. Langmuir sorption capacity (Qo) and sorption constant (b) were 2.014 mg/g and 0.281 L/mg, respectively. The regenerated capsules could be used three times with no change in their sorption capacities. Based on the experiments performed at initial pH of 8.0 for other metal ions, including Ni(II), Pb(II) and Cd(II), sorption ability of Cyanex 272@PSF capsules was in the order: Co(II) ≈ Ni(II) > Cd(II) > Pb(II). Consequently, Cyanex 272@PSF capsules have potential for removing Co(II) from aqueous solutions.
Yazarlar (4)
1
Omer Kazak
2
Ali Tor
3
Ilker Akin
4
Gulsin Arslan
Anahtar Kelimeler
Cobalt removal
Cyanex 272
Polysulfone capsule
Sorption
Kurumlar
Necmettin Erbakan Üniversitesi
Meram Turkey
Selçuk Üniversitesi
Selçuklu Turkey
Metrikler
33
Atıf
4
Yazar
4
Anahtar Kelime