TY - JOUR
T1 - Diglycolamide-functionalized dendrimers
T2 - Studies on Americium(III) pertraction from radioactive waste
AU - Ansari, Seraj A.
AU - Mohapatra, Prasanta K.
AU - Leoncini, Andrea
AU - Huskens, Jurriaan
AU - Verboom, Willem
PY - 2017
Y1 - 2017
N2 - Diglycolamide (DGA)-functionalized poly(propylene imine) diaminobutane dendrimers were evaluated as the carrier in supported liquid membranes (SLMs) for selective recovery of trivalent actinides over uranium. The 0, 1st, and 2nd generation dendrimers with 2, 4, and 8 DGA moieties, termed as LI, LII, and LIII, respectively, gave DAm values of 0.11 ± 0.02, 41.9 ± 3.21 and 109.4 ± 6.22 in solvent extraction studies using 1 mmol/L ligand solutions in a diluent mixture of 95% n-dodecane + 5% iso-decanol. SLM studies using polytetrafluoroethylene flat sheet membrane filters impregnated with 1 mmol solutions of LII and LIII suggested quantitative mass transfer of Pu4+, Am3+, and Eu3+ from 3 mol/L HNO3 in about 5 h. Various diffusional parameters affecting SLM transport have been calculated for better understanding the transport data. The stability of the SLM was also studied over a period of five days.
AB - Diglycolamide (DGA)-functionalized poly(propylene imine) diaminobutane dendrimers were evaluated as the carrier in supported liquid membranes (SLMs) for selective recovery of trivalent actinides over uranium. The 0, 1st, and 2nd generation dendrimers with 2, 4, and 8 DGA moieties, termed as LI, LII, and LIII, respectively, gave DAm values of 0.11 ± 0.02, 41.9 ± 3.21 and 109.4 ± 6.22 in solvent extraction studies using 1 mmol/L ligand solutions in a diluent mixture of 95% n-dodecane + 5% iso-decanol. SLM studies using polytetrafluoroethylene flat sheet membrane filters impregnated with 1 mmol solutions of LII and LIII suggested quantitative mass transfer of Pu4+, Am3+, and Eu3+ from 3 mol/L HNO3 in about 5 h. Various diffusional parameters affecting SLM transport have been calculated for better understanding the transport data. The stability of the SLM was also studied over a period of five days.
KW - Americium
KW - Dendrimer
KW - Diglycolamide
KW - Liquid membrane
KW - Radioactive waste
KW - 2023 OA procedure
UR - http://www.scopus.com/inward/record.url?scp=85021293580&partnerID=8YFLogxK
U2 - 10.1016/j.seppur.2017.06.028
DO - 10.1016/j.seppur.2017.06.028
M3 - Article
AN - SCOPUS:85021293580
SN - 1383-5866
VL - 187
SP - 110
EP - 117
JO - Separation and purification technology
JF - Separation and purification technology
ER -