4.
Sorption of Chromate by Surfactant Modified Willhendersonite
Vandana Swarnkar*, Radha Tomar
School of Studies in Chemistry, Jiwaji University, Gwalior, M.P.,
India
*
sonivandana20@gmail.com
Abstract:
A new sorbent, ordered
mesoporous surfactant modified Willhendersonite, was
prepared and applied for the sorption of chromate from
water. The sorbent showed higher efficiency for the sorption
of Cr(VI). The maximum uptake at pH 7.0 was 80mg g-1 for
Cr(VI). The behaviour of Cr(VI) sorption onto surfactant
modified Willhendersonite was investigated by sorption
isotherms, sorption kinetics and the effect of pH on
sorption. The sorption equilibrium of chromate was rapid,
with 90% sorption in 7 hours. The surfactant modified
willhendersonite was characterized by using FTIR, XRD, TEM,
SEM, DTA/TGA and E-DAX techniques.
Keyword: Willhendersonite, Cr(VI), FTIR, XRD, TEM,
SEM, DTA/TGA and E-DAX.
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