PMID- 35339467 OWN - NLM STAT- MEDLINE DCOM- 20220620 LR - 20220721 IS - 1096-0953 (Electronic) IS - 0013-9351 (Linking) VI - 212 IP - Pt A DP - 2022 Sep TI - Adsorption of persistent organic pollutants (POPs) from the aqueous environment by nano-adsorbents: A review. PG - 113123 LID - S0013-9351(22)00450-9 [pii] LID - 10.1016/j.envres.2022.113123 [doi] AB - The intensification of urbanisation and industrial activities significantly exacerbates the distribution of toxic contaminations into the aqueous environment. Persistent organic pollutants (POPs) have received considerable attention in the past few decades because of their persistence, long-distance migration, potential bioaccumulation, latent toxicity for humans and wildlife. There is no doubt that POPs cause serious effects on the global ecosystem. Therefore, it is necessary to develop a simple, safe and sustainable approach to remove POPs from water bodies. Among other conventional techniques, the adsorption process has proven to be a more effective method for eliminating POPs and to a larger extent meet discharge regulations. Nanomaterials can effectively adsorb POPs from aqueous solutions. For most POPs, a >70% adsorptive removal efficiency was achieved. The major mechanisms for POPS uptake by nano-adsorbents includes electrostatic interaction, hydrophobic (van der Waals, pi-pi and electron donor-acceptor) interaction and hydrogen bonding. Nano-adsorbent can sustain a >90% POPs adsorptive removal for about 3 cycles and reuseable for up to 10 cycles. Challenges around adsorbent ecotoxicity and safe disposal were also discussed. The present review evaluated recent research outcomes on nanomaterials that are employed to remove POPs in water systems. CI - Copyright (c) 2022 Elsevier Inc. All rights reserved. FAU - Ighalo, Joshua O AU - Ighalo JO AD - Department of Chemical Engineering, Nnamdi Azikiwe University, P. M. B., 5025, Awka, Nigeria; Department of Chemical Engineering, University of Ilorin, P. M. B., 1515, Ilorin, Nigeria. Electronic address: jo.ighalo@unizik.edu.ng. FAU - Yap, Pow-Seng AU - Yap PS AD - Department of Civil Engineering, Xi'an Jiaotong-Liverpool University, Suzhou, 215123, China. Electronic address: PowSeng.Yap@xjtlu.edu.cn. FAU - Iwuozor, Kingsley O AU - Iwuozor KO AD - Department of Pure and Industrial Chemistry, Nnamdi Azikiwe University, P. M. B., 5025, Awka, Nigeria. FAU - Aniagor, Chukwunonso O AU - Aniagor CO AD - Department of Chemical Engineering, Nnamdi Azikiwe University, P. M. B., 5025, Awka, Nigeria. FAU - Liu, Tianqi AU - Liu T AD - Department of Civil Engineering, Xi'an Jiaotong-Liverpool University, Suzhou, 215123, China. FAU - Dulta, Kanika AU - Dulta K AD - Faculty of Applied Sciences and Biotechnology, Shoolini University, Solan, 173229, India. FAU - Iwuchukwu, Felicitas U AU - Iwuchukwu FU AD - Department of Chemical Engineering, Nnamdi Azikiwe University, P. M. B., 5025, Awka, Nigeria. FAU - Rangabhashiyam, Selvasembian AU - Rangabhashiyam S AD - Department of Biotechnology, School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur, 613401, Tamil Nadu, India. Electronic address: rambhashiyam@gmail.com. LA - eng PT - Journal Article PT - Review DEP - 20220324 PL - Netherlands TA - Environ Res JT - Environmental research JID - 0147621 RN - 0 (Water Pollutants, Chemical) RN - 059QF0KO0R (Water) SB - IM MH - Adsorption MH - Ecosystem MH - Humans MH - *Persistent Organic Pollutants MH - Water/chemistry MH - *Water Pollutants, Chemical/analysis OTO - NOTNLM OT - Adsorption OT - Advantages OT - Aqueous solution OT - Nanomaterials OT - Persistent organic pollutants (POPs) EDAT- 2022/03/28 06:00 MHDA- 2022/06/22 06:00 CRDT- 2022/03/27 20:20 PHST- 2022/01/28 00:00 [received] PHST- 2022/03/07 00:00 [revised] PHST- 2022/03/11 00:00 [accepted] PHST- 2022/03/28 06:00 [pubmed] PHST- 2022/06/22 06:00 [medline] PHST- 2022/03/27 20:20 [entrez] AID - S0013-9351(22)00450-9 [pii] AID - 10.1016/j.envres.2022.113123 [doi] PST - ppublish SO - Environ Res. 2022 Sep;212(Pt A):113123. doi: 10.1016/j.envres.2022.113123. Epub 2022 Mar 24.