TY - JOUR
T1 - Methylene blue adsorption via maize silk powder
T2 - Kinetic, equilibrium, thermodynamic studies and residual error analysis
AU - Miraboutalebi, Seyed Mohammadreza
AU - Nikouzad, Soheil Kordmirza
AU - Peydayesh, Mohammad
AU - Allahgholi, Nima
AU - Vafajoo, Leila
AU - McKay, Gordon
N1 - Publisher Copyright:
© 2017 Institution of Chemical Engineers
PY - 2017
Y1 - 2017
N2 - The potential of maize silk powder (MS) as a natural, widely available and low-cost agricultural waste in order to adsorb methylene blue (MB) from an aqueous solution has been studied. The adsorbent surface morphology has been studied using SEM and FTIR. The effect of operating conditions such as contact time, solution pH and initial MB concentration and the important frequently missed parameters such as salt effect (using NaCl and Na2HPO4), temperature effect (for ΔH°, ΔG° and ΔS°), solution pH and detailed error analysis have been determined. A rate study indicated the process followed pseudo-second order kinetics. The adsorption equilibrium was modeled for best fit using ten commonly-used isotherm models and the Jovanovic equation gave the best correlation of the experimental data.
AB - The potential of maize silk powder (MS) as a natural, widely available and low-cost agricultural waste in order to adsorb methylene blue (MB) from an aqueous solution has been studied. The adsorbent surface morphology has been studied using SEM and FTIR. The effect of operating conditions such as contact time, solution pH and initial MB concentration and the important frequently missed parameters such as salt effect (using NaCl and Na2HPO4), temperature effect (for ΔH°, ΔG° and ΔS°), solution pH and detailed error analysis have been determined. A rate study indicated the process followed pseudo-second order kinetics. The adsorption equilibrium was modeled for best fit using ten commonly-used isotherm models and the Jovanovic equation gave the best correlation of the experimental data.
KW - Error analysis
KW - Isotherm
KW - Maize silk
KW - Methylene blue adsorption
KW - Nonlinear regression
UR - http://www.scopus.com/inward/record.url?scp=85012284057&partnerID=8YFLogxK
U2 - 10.1016/j.psep.2017.01.010
DO - 10.1016/j.psep.2017.01.010
M3 - Article
AN - SCOPUS:85012284057
SN - 0957-5820
VL - 106
SP - 191
EP - 202
JO - Process Safety and Environmental Protection
JF - Process Safety and Environmental Protection
ER -