PMID- 16930794 OWN - NLM STAT- MEDLINE DCOM- 20070815 LR - 20151119 IS - 0269-7491 (Print) IS - 0269-7491 (Linking) VI - 147 IP - 2 DP - 2007 May TI - A biomimetic absorbent for removal of trace level persistent organic pollutants from water. PG - 337-42 AB - A novel biomimetic absorbent containing the lipid triolein was developed for removing persistent organic pollutants (POPs) from water. The structural characteristics of the absorbent were obtained by SEM and a photoluminescence method. Under optimum preparation conditions, triolein was perfectly embedded in the cellulose acetate (CA) spheres, the absorbent was stable and no triolein leaked into the water. Dieldrin, endrin, aldrin and heptachlor epoxide were effectively removed by the CA--triolein absorbent in laboratory batch experiments. This suggests that CA-triolein absorbent may serve as a good absorbent for those selected POPs. Triolein in the absorbent significantly increased the absorption capacity, and lower residual concentrations of POPs were achieved when compared to the use of cellulose acetate absorbent. The absorption rate for lipophilic pollutants was very fast and exhibited some relationship with the octanol--water partition coefficient of the analyte. The absorption mechanism is discussed in detail. FAU - Liu, Huijuan AU - Liu H AD - State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China. FAU - Qu, Jiuhui AU - Qu J FAU - Dai, Ruihua AU - Dai R FAU - Ru, Jia AU - Ru J FAU - Wang, Zijian AU - Wang Z LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20060822 PL - England TA - Environ Pollut JT - Environmental pollution (Barking, Essex : 1987) JID - 8804476 RN - 0 (Biocompatible Materials) RN - 0 (Hydrocarbons, Chlorinated) RN - 0 (Water Pollutants) RN - 122-32-7 (Triolein) RN - 3J2P07GVB6 (acetylcellulose) RN - 9004-34-6 (Cellulose) SB - IM MH - Absorption MH - Biocompatible Materials/chemistry MH - Biomimetic Materials/*chemistry MH - Cellulose/analogs & derivatives/chemistry MH - Environmental Restoration and Remediation/methods MH - Hydrocarbons, Chlorinated/chemistry MH - Luminescent Measurements MH - Microscopy, Electron, Scanning/methods MH - Triolein/chemistry MH - Water Pollutants/*chemistry MH - Water Purification/*methods EDAT- 2006/08/26 09:00 MHDA- 2007/08/19 09:00 CRDT- 2006/08/26 09:00 PHST- 2006/05/25 00:00 [received] PHST- 2006/06/14 00:00 [accepted] PHST- 2006/08/26 09:00 [pubmed] PHST- 2007/08/19 09:00 [medline] PHST- 2006/08/26 09:00 [entrez] AID - S0269-7491(06)00392-7 [pii] AID - 10.1016/j.envpol.2006.06.031 [doi] PST - ppublish SO - Environ Pollut. 2007 May;147(2):337-42. doi: 10.1016/j.envpol.2006.06.031. Epub 2006 Aug 22.