Trypsin-immobilized silica: A novel adsorbent for V(IV) and V(V) removal from water
Makaleler > Tam Makale · 2018
Yazarlar: Aslı ERDEM YAYAYÜRÜK, Talal Shahwan, Gülşah Şxanli-Mohamed, Ahmet E. Eroǧlu
Water Environment Research, SCI Expanded İndekslerine Giren Dergi, Uluslararası, Scopus, 2018, cilt 90, ss 2056-2065
DOI: 10.2175/106143017X15131012188196
Özet
In the present study, trypsin-immobilized silica was employed for the removal of V(IV) and V(V) ions from water. The synthesized sorbent was first characterized and then investigated for the removal of V(IV) and V(V) under various experimental conditions. The adsorption performance of the sorbent was tested as a function of pH, sorbent amount, initial vanadium concentration, contact time, and temperature. The sorption process was then investigated, both from a kinetic perspective and also in terms of isotherm models. The Langmuir adsorption isotherm was the best model to describe the sorption process. Sorption thermodynamics were spontaneous and exothermic. The proposed method was successfully applied to real samples for the removal of V(IV)and V(V) with sufficient accuracy and precision.