PMID- 36857891 OWN - NLM STAT- MEDLINE DCOM- 20230321 LR - 20230321 IS - 1095-8630 (Electronic) IS - 0301-4797 (Linking) VI - 335 DP - 2023 Jun 1 TI - Comprehensive evaluation of corrosion inhibition performance and ecotoxicological effect of cinchona IIa as a green corrosion inhibitor for pickling of Q235 steel. PG - 117531 LID - S0301-4797(23)00319-5 [pii] LID - 10.1016/j.jenvman.2023.117531 [doi] AB - Here, to prevent the corrosion of Q235 steel in the pickling and discover novel green corrosion inhibitors, the corrosion inhibition performance and eco-toxicity of cinchonain IIa were evaluated. Electrochemical experiments confirms that 200 mg/L cinchonain IIa reveals good corrosion inhibition performance with 94.08% on Q235 steel in HCl for 48 h. Scanning electron microscope (SEM) and atomic force microscope (AFM) observations suggest that cinchonain IIa can be firmly attached to the metal surface by forming a barrier film. The X-ray photoelectron spectroscopy (XPS) results further verify the bonding interaction between the functional groups and the steel matrix, and indicate the existence of protective film on the steel. Meanwhile, the inhibition mechanism at the molecular/atomic level is revealed through molecular dynamics simulation. Additionally, acute toxicity test shows that cinchonain IIa is a low toxic corrosion inhibitor. Moreover, the antioxidant enzyme activity experiments confirm that cinchonain IIa discloses no obvious damage to the antioxidant system of zebrafish. Overall, cinchonain IIa exhibits low potential risks to the healthy development of aquatic organisms and ecosystems. As a proven green and low toxic corrosion inhibitor, cinchonain IIa has a sustainable application in the anti-corrosion industry. CI - Copyright (c) 2023 Elsevier Ltd. All rights reserved. FAU - Huang, Li AU - Huang L AD - Weihai Key Laboratory of Active Factor of Marine Products, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150006, PR China. FAU - Li, Hui-Jing AU - Li HJ AD - Weihai Key Laboratory of Active Factor of Marine Products, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150006, PR China. FAU - Wu, Yan-Chao AU - Wu YC AD - Weihai Key Laboratory of Active Factor of Marine Products, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150006, PR China. Electronic address: yanchaowu@iccas.ac.cn. LA - eng PT - Journal Article DEP - 20230227 PL - England TA - J Environ Manage JT - Journal of environmental management JID - 0401664 RN - 0 (Antioxidants) RN - 12597-69-2 (Steel) RN - 0 (Water Pollutants, Chemical) SB - IM MH - Animals MH - Antioxidants/metabolism MH - *Cinchona/toxicity MH - Ecosystem MH - Steel/chemistry MH - Zebrafish MH - *Water Pollutants, Chemical/toxicity MH - Ecotoxicology OTO - NOTNLM OT - Cinchonain IIa OT - Environmental toxicity OT - Green corrosion inhibitor OT - MD simulation OT - XPS COIS- Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2023/03/02 06:00 MHDA- 2023/03/15 06:00 CRDT- 2023/03/01 18:10 PHST- 2022/08/24 00:00 [received] PHST- 2023/02/12 00:00 [revised] PHST- 2023/02/15 00:00 [accepted] PHST- 2023/03/02 06:00 [pubmed] PHST- 2023/03/15 06:00 [medline] PHST- 2023/03/01 18:10 [entrez] AID - S0301-4797(23)00319-5 [pii] AID - 10.1016/j.jenvman.2023.117531 [doi] PST - ppublish SO - J Environ Manage. 2023 Jun 1;335:117531. doi: 10.1016/j.jenvman.2023.117531. Epub 2023 Feb 27.