Use of Sr2Mg(BO3)2 in Congo red removal from aqueous solutions: Synthesis, adsorption, isotherm, kinetic study
Küçük Resim Yok
Tarih
2023
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Taylor & Francis Inc
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Sr2Mg(BO3)(2) was prepared by a solution combustion method at 900 degrees C for 6 hour in air. The prepared adsorbent was characterized by X-Ray Diffraction (XRD). The XRD pattern of Sr2Mg(BO3)(2) is in agreement with the ICDD File No: 01-076-9795. The particle morphology of the adsorbent was investigated by scanning electron microscope (SEM). The average size of particles is about 3-10 mu m. The Congo red dye was removed from aqueous solution using Sr2Mg(BO3)(2). The effect of time, initial concentration, pH, temperature and dosage on adsorption were investigated. The Freundlich model fitted according to equilibrium data and maximum adsorption capacity is 886.952 mg/g. According to theories of pseudo-second-order kinetics, the removal procedure involves chemical adsorption. According to the thermodynamic data, negative Delta G values indicated that adsorption of Sr2Mg(BO3)(2) occurred spontaneously and negative Delta H values, the adsorption process was exothermic. Sr2Mg(BO3)(2) is a useable material for Congo red dye removal.
Açıklama
Anahtar Kelimeler
Sr2Mg(BO3)(2), Congo red, adsorption, dye removal, Freundlich
Kaynak
Journal of Dispersion Science and Technology
WoS Q Değeri
Q4
Scopus Q Değeri
Q3
