Adsorption of nickel(II) ions from aqueous solutions using Malatya clay: Equilibrium, kinetic, and thermodynamic studies
Yükleniyor...
Tarih
2023
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Environmental Progress & Sustainable Energy
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
This paper evaluates Malatya clay (MC) for the removal of Ni(II) ions from aqueous
solutions. For adsorption efficiency, the impacts of several factors, such as pH, starting
metal ion concentration, and contact duration, were examined. The optimal initial
Ni(II) ion concentration was determined to be 5 mg/L, the adsorption contact duration
was 360 min, and the solution's pH was 6.27. Using scanning electron microscopy,
energy dispersive spectroscopy, and Fourier transform infrared spectroscopy, the surface characteristics of Malatya clay were examined. The isotherm data fit the Langmuir
isotherm model, indicating chemical adsorption and likely irreversibility of the process,
according to the results. At 298, 308, and 318 K, the adsorption capacities of
Ni(II) were determined to be 10.267, 11.834, and 12.285 mg/g, respectively. Adsorption kinetic data revealed that the adsorption of Ni(II) metal ions followed the pseudosecond-order kinetic model. According to thermodynamic studies, Ni(II) ion adsorption
on the MC is spontaneous and endothermic. MC has proven to be an effective and
alternative material for the removal of Ni(II) ions from aqueous media due to its excellent removal ability, availability, and low cost, as well as its features such as being able
to be used without any chemical treatment and being environmentally friendly.
Açıklama
Anahtar Kelimeler
adsorption, isotherm, kinetics, Malatya clay, nickel
Kaynak
Environmental Progress & Sustainable Energy
WoS Q Değeri
N/A
Scopus Q Değeri
N/A
Cilt
Sayı
Künye
Onursal, N., Altunkaynak, Y., Baran, A., & Dal, M. C. (2023). Adsorption of nickel (II) ions from aqueous solutions using Malatya clay: Equilibrium, kinetic, and thermodynamic studies. Environmental Progress & Sustainable Energy, e14150.
