PMID- 36500426 OWN - NLM STAT- MEDLINE DCOM- 20221216 LR - 20221222 IS - 1420-3049 (Electronic) IS - 1420-3049 (Linking) VI - 27 IP - 23 DP - 2022 Nov 29 TI - Highly Selective Methodology for Entrapment and Subsequent Removal of Cobalt (II) Ions under Optimized Conditions by Micellar-Enhanced Ultrafiltration. LID - 10.3390/molecules27238332 [doi] LID - 8332 AB - Micellar-enhanced ultrafiltration (MEUF), being a separation technique, was used to remove cobalt metal ion (Co(2+)) from their aqueous solutions in an application to reduce the toxicity level from industrial effluents using a micellar solution of anionic and cationic surfactants. The metal ions were first adsorbed by using anionic surfactants, i.e., sodium dodecyl sulfate (SDS) and sodium oleate (SO). The calculations for partition (K(x)) and binding constants (K(b)) and their respective free energy of partition and binding (DeltaG(p) and DeltaG(b) kJmol(-1)) helped significantly to find out the extent of binding or interaction of Co(2+) with the surfactant and DeltaG(p) and DeltaG(b) were found to be -29.50 and -19.38 kJmol(-1) for SDS and -23.95 and -12.67 kJmol(-1) in the case of SO. MEUF work was also performed to find out the optimal conditions to remove metal pollutants from the aqueous system. For the said purpose, various factors and concentrations effect were studied, such as the concentration of the surfactant, concentration of the electrolyte (NaCl), transmembrane pressure, RPM, and pH. The efficiency of this process was checked by calculating various parameters, such as rejection percentage (R%) and permeate flux (J). A maximum rejection of 99.95% with SDS and 99.99% with SO was attained. FAU - Yusaf, Amnah AU - Yusaf A AUID- ORCID: 0000-0002-0812-111X AD - Department of Chemistry, Government College University, Faisalabad 38000, Pakistan. AD - Department of Chemistry, University College London, London WC1E 6BT, UK. AD - Department of Chemistry, Government College Women University, Faisalabad 38000, Pakistan. FAU - Usman, Muhammad AU - Usman M AD - Department of Chemistry, Government College University, Faisalabad 38000, Pakistan. FAU - Ahmad, Matloob AU - Ahmad M AUID- ORCID: 0000-0003-1302-8056 AD - Department of Chemistry, Government College University, Faisalabad 38000, Pakistan. FAU - Siddiq, Muhammad AU - Siddiq M AUID- ORCID: 0000-0001-7894-8342 AD - Department of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan. FAU - Mansha, Asim AU - Mansha A AUID- ORCID: 0000-0001-5659-0562 AD - Department of Chemistry, Government College University, Faisalabad 38000, Pakistan. FAU - Al-Hussain, Sami A AU - Al-Hussain SA AD - Department of Chemistry, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 13623, Saudi Arabia. FAU - Zaki, Magdi E A AU - Zaki MEA AUID- ORCID: 0000-0002-5643-9202 AD - Department of Chemistry, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 13623, Saudi Arabia. FAU - Rehman, Hafiza Fatima AU - Rehman HF AD - Department of Zoology, Government College University, Faisalabad 38000, Pakistan. LA - eng GR - 20-3367/NRPU/R&D/HEC/14/Higher Education Commission of Pakistan/ PT - Journal Article DEP - 20221129 PL - Switzerland TA - Molecules JT - Molecules (Basel, Switzerland) JID - 100964009 RN - 0 (Micelles) RN - 3G0H8C9362 (Cobalt) RN - 368GB5141J (Sodium Dodecyl Sulfate) RN - 0 (Surface-Active Agents) RN - 0 (Ions) SB - IM MH - *Micelles MH - *Cobalt MH - Ultrafiltration/methods MH - Sodium Dodecyl Sulfate MH - Surface-Active Agents MH - Ions PMC - PMC9736276 OTO - NOTNLM OT - MEUF OT - RPM OT - adsorption OT - binding constant OT - concentration of surfactant OT - electrolyte OT - metal ions OT - micelles OT - pH OT - partition coefficient OT - permeate flux OT - rejection percentage OT - transmembrane pressure COIS- The authors declare no conflict of interest. EDAT- 2022/12/12 06:00 MHDA- 2022/12/15 06:00 PMCR- 2022/11/29 CRDT- 2022/12/11 01:27 PHST- 2022/10/29 00:00 [received] PHST- 2022/11/18 00:00 [revised] PHST- 2022/11/24 00:00 [accepted] PHST- 2022/12/11 01:27 [entrez] PHST- 2022/12/12 06:00 [pubmed] PHST- 2022/12/15 06:00 [medline] PHST- 2022/11/29 00:00 [pmc-release] AID - molecules27238332 [pii] AID - molecules-27-08332 [pii] AID - 10.3390/molecules27238332 [doi] PST - epublish SO - Molecules. 2022 Nov 29;27(23):8332. doi: 10.3390/molecules27238332.