The adsorption of an aqueous mixture of light rare earth elements (Y, La, Ce, Nd, and Sm) by carbon black
derived from pyrolyzed end-of-life tires was investigated. The recycled tire carbon black (RTCB) was compared
with other commercial carbon and functionalized carbon sorbent materials. The RTCB demonstrated
improved adsorption for all the rare earth elements in this investigation over other carbon
sorbent materials under a variety of conditions. The adsorption isotherms were observed to follow the
Freundlich model with pseudo-second order kinetics. Analysis of thermodynamic state functions suggests
the adsorption to be endothermic, energetically favorable under the conditions of study, and a dissociative
adsorption mechanism. The use of RTCB as a sorbent material for extraction of aqueous REEs is
attractive due to its inexpensive cost and utilization of a recycled material stream
The adsorption of an aqueous mixture of light rare earth elements (Y, La, Ce, Nd, and Sm) by carbon blackderived from pyrolyzed end-of-life tires was investigated. The recycled tire carbon black (RTCB) was comparedwith other commercial carbon and functionalized carbon sorbent materials. The RTCB demonstratedimproved adsorption for all the rare earth elements in this investigation over other carbonsorbent materials under a variety of conditions. The adsorption isotherms were observed to follow theFreundlich model with pseudo-second order kinetics. Analysis of thermodynamic state functions suggeststhe adsorption to be endothermic, energetically favorable under the conditions of study, and a dissociativeadsorption mechanism. The use of RTCB as a sorbent material for extraction of aqueous REEs isattractive due to its inexpensive cost and utilization of a recycled material stream
การแปล กรุณารอสักครู่..
