Premium
Trypsin‐Immobilized Silica: A Novel Adsorbent for V(IV) and V(V) Removal from Water
Author(s) -
Yayayürük Aslı Erdem,
Shahwan Talal,
ŞanlıMohamed Gülşah,
Eroğlu Ahmet E.
Publication year - 2018
Publication title -
water environment research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.356
H-Index - 73
eISSN - 1554-7531
pISSN - 1061-4303
DOI - 10.2175/106143017x15131012188196
Subject(s) - sorbent , sorption , adsorption , chemistry , langmuir adsorption model , exothermic reaction , chromatography , langmuir , exothermic process , silica gel , vanadium , nuclear chemistry , inorganic chemistry , organic chemistry
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.