PMID- 33151456 OWN - NLM STAT- MEDLINE DCOM- 20201109 LR - 20201216 IS - 1573-2959 (Electronic) IS - 0167-6369 (Linking) VI - 192 IP - 12 DP - 2020 Nov 5 TI - Sorption behavior of selected chlorophenols onto polyurethane foam treated with iron(III): kinetics and thermodynamic study. PG - 748 LID - 10.1007/s10661-020-08693-5 [doi] AB - An efficient, selective, and inexpensive method for complete elimination of chlorophenols (CPs) from water has been established. The proposed procedure was based upon the use of n-tributyl phosphate (TBP)-plasticized iron(III) physically immobilized polyurethane foam (PUF) solid sorbent for complete removal of CPs from aqueous media at pH close to 0. The interaction of the complex ion [Fe(C(6)H(5)O)(6)](3-) with protonated ether oxygen of the PUF sorbent forms ternary ion associate on/in the PUFs. The retention of 4-chlorophenol (4-C) and 2,4,6-trichlorophenol (TCP) by the TBP-treated iron(III)-immobilized PUF fitted well with the pseudo-second-order kinetic model with a rate constant (k) of 0.04 and 0.15 g (mg min)(-1), respectively. The sorption of 4-CP was endothermic whereas the uptake of TCP was favorable at low temperature approving the exothermic and non-spontaneous characteristics of its uptake. The DeltaS value for 4-CP reveals good affinity of the ion [Fe(C(6)H(5)O)(6)](3-) towards the PUF sorbent. FAU - Saigl, Z M AU - Saigl ZM AD - Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah, 21589, Saudi Arabia. zsaigl@kau.edu.sa. LA - eng PT - Journal Article DEP - 20201105 PL - Netherlands TA - Environ Monit Assess JT - Environmental monitoring and assessment JID - 8508350 RN - 0 (Chlorophenols) RN - 0 (Polyurethanes) RN - 0 (Water Pollutants, Chemical) RN - 9009-54-5 (polyurethane foam) RN - E1UOL152H7 (Iron) SB - IM MH - Adsorption MH - *Chlorophenols MH - Environmental Monitoring MH - Hydrogen-Ion Concentration MH - Iron MH - Kinetics MH - Polyurethanes MH - Thermodynamics MH - *Water Pollutants, Chemical OTO - NOTNLM OT - Chlorophenols OT - Environmental water sample OT - Plasticized polyurethane foam OT - Pseudo-second order OT - Retention OT - Thermodynamic EDAT- 2020/11/06 06:00 MHDA- 2020/11/11 06:00 CRDT- 2020/11/05 12:14 PHST- 2020/02/28 00:00 [received] PHST- 2020/10/18 00:00 [accepted] PHST- 2020/11/05 12:14 [entrez] PHST- 2020/11/06 06:00 [pubmed] PHST- 2020/11/11 06:00 [medline] AID - 10.1007/s10661-020-08693-5 [pii] AID - 10.1007/s10661-020-08693-5 [doi] PST - epublish SO - Environ Monit Assess. 2020 Nov 5;192(12):748. doi: 10.1007/s10661-020-08693-5.