Study on Sinapine Thiocyanate as Green Corrosion Inhibitor for Q235 Steel in Hydrochloric Acid Solution
In this work,the green inhibitor of Sinapine Thiocyanate(Inhi-ST)was extracted and isolated by the dried and powdered semen raphanin from Raphanus Sativus L.After the target green inhibitor isolated,it was confirmed by 1H-NMR,13C-NMR and ESI-MS.Meanwhile,the corrosion inhibition of Q235 steel(QS)by Inhi-ST in HCl solution was evaluated using weight loss and potentiodynamic polarization measurement.The study results indicate that the Inhi-ST can act as an effective green corrosion inhibitor for QS in HCl solution,the green inhibitor is a mixed-type inhibitor,the inhibition efficiency increase with the inhibitor concentration increasing,while which decrease with HCl concentration,temperature and storage time increasing.The adsorption of Inhi-ST on QS surface obeys Langmuir isotherm,which belongs to the mixed adsorption involving both chemisorption and physisorption.
Semen Raphanin Green Inhibitor Electrochemical Weight Loss Chemisorption
LAI Chuan XIE Bin ZHOU Lvshan JIANG Xilan LIU Changlu
School of Chemistry and Chemical Engineering,Eastern Sichuan Sub-center of National Engineering Rese Institute of Functional Materials,Sichuan University of Science and Engineering,Zigong 643000,PR Chi
国内会议
四川自贡
英文
104-110
2018-05-25（万方平台首次上网日期，不代表论文的发表时间）