PMID- 38381288 OWN - NLM STAT- MEDLINE DCOM- 20240313 LR - 20240313 IS - 1614-7499 (Electronic) IS - 0944-1344 (Linking) VI - 31 IP - 13 DP - 2024 Mar TI - Efficient removal of heavy metals in water utilizing facile cross-link conjugated linoleic acid micelles. PG - 20665-20677 LID - 10.1007/s11356-024-32517-5 [doi] AB - Micellar-enhanced ultrafiltration (MEUF) technology is an effective method to treat low-concentration heavy metal wastewater. However, the leakage of surfactants in the ultrafiltration (UF) process will inevitably cause secondary pollution. In this study, a biosurfactant of conjugated linoleic acid (CLA) with conjugated double bonds was selected to bind its micelles by simple thermal crosslinking to obtain morphologically stable stearic acid (SA) nanoparticles. The pure SA nanoparticles were obtained by repeated dialysis. The stability of the SA nanoparticles was verified by comparing the particle size distribution and solubility of the materials before and after crosslinking at different pH levels. The effectiveness of SA nanoparticle-enhanced UF in removing heavy metals was verified by exploring the adsorption performance of SA nanoparticles. The dialysis device was used to simplify the UF device, wherein SA nanoparticles were assessed as adsorbents for the elimination of Cu(2+), Pb(2+), and Cd(2+) ions from aqueous solutions under diverse process parameters, including pH, contact time, metal ion concentration, and coexisting ions. The findings indicate that the SA nanoparticles have no evidence of secondary contamination in UF and exhibit compatibility with a broad pH range and coexisting ions. The maximum adsorption capacities for Cu(2+), Pb(2+), and Cd(2+) were determined to be 152.77, 403.56, and 271.46 mg/g, respectively. CI - (c) 2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature. FAU - Wang, Zufei AU - Wang Z AD - School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China. FAU - Huang, Kaibo AU - Huang K AD - School of Ecology and Environment, Hainan University, Haikou, 570228, People's Republic of China. AD - Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province (Hainan University), Haikou, 570228, China. FAU - Zheng, Yanjie AU - Zheng Y AD - School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China. FAU - Ye, Han AU - Ye H AD - School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China. FAU - Wang, Juan AU - Wang J AD - School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China. FAU - Tao, Xueqin AU - Tao X AD - College of Resources and Environment, Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, China. FAU - Zhou, Jiangmin AU - Zhou J AD - College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, China. FAU - Dang, Zhi AU - Dang Z AD - School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China. AD - The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, South China University of Technology, Guangzhou, 510006, China. FAU - Lu, Guining AU - Lu G AUID- ORCID: 0000-0003-1974-1274 AD - School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China. GNLu@foxmail.com. AD - The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, South China University of Technology, Guangzhou, 510006, China. GNLu@foxmail.com. LA - eng GR - 42277380,42077114/National Natural Science Foundation of China/ GR - 42207439/National Natural Science Foundation of China/ PT - Journal Article DEP - 20240221 PL - Germany TA - Environ Sci Pollut Res Int JT - Environmental science and pollution research international JID - 9441769 RN - 00BH33GNGH (Cadmium) RN - 0 (Micelles) RN - 0 (Linoleic Acids, Conjugated) RN - 059QF0KO0R (Water) RN - 2P299V784P (Lead) RN - 0 (Metals, Heavy) RN - 0 (Water Pollutants, Chemical) SB - IM MH - Cadmium MH - Micelles MH - *Linoleic Acids, Conjugated MH - Water MH - Lead MH - *Metals, Heavy/chemistry MH - Adsorption MH - *Water Pollutants, Chemical/chemistry MH - Hydrogen-Ion Concentration MH - Kinetics OTO - NOTNLM OT - Adsorption OT - CLA OT - Crosslinking OT - Dialysis OT - Heavy metal cations OT - MEUF EDAT- 2024/02/21 12:42 MHDA- 2024/03/13 06:47 CRDT- 2024/02/21 11:12 PHST- 2023/07/10 00:00 [received] PHST- 2024/02/14 00:00 [accepted] PHST- 2024/03/13 06:47 [medline] PHST- 2024/02/21 12:42 [pubmed] PHST- 2024/02/21 11:12 [entrez] AID - 10.1007/s11356-024-32517-5 [pii] AID - 10.1007/s11356-024-32517-5 [doi] PST - ppublish SO - Environ Sci Pollut Res Int. 2024 Mar;31(13):20665-20677. doi: 10.1007/s11356-024-32517-5. Epub 2024 Feb 21.