|
|||||
|
|
Inspired dual functional adsorption films of armed molecules on copper |
|
| Authors: | Yueting Shi Junle Xiong Hongru Li Fang Gao Xinchao Wang Shengtao Zhang |
| Affiliation: | 1. College of Chemistry and Chemical Engineering, Chongqing University, Chongqing, China College of Chemistry and Environmental Engineering, Chongqing University of Arts and Sciences, Chongqing, China Contribution: Investigation;2. College of Chemistry and Chemical Engineering, Chongqing University, Chongqing, China Chongqing Kunding Environmental Protection Technology, Co. Ltd, Chongqing, China Contribution: Software;3. College of Chemistry and Chemical Engineering, Chongqing University, Chongqing, China |
| Abstract: | In this study, double norfloxacin skeletons including the target armed molecules (DNs) displaying antibacterial and anticorrosion properties for copper in aqueous solutions were presented. The molecular modelling and material simulation calculations suggest that the target molecules could be adsorbed to copper surface, which was further demonstrated by attenuated total reflection infrared spectroscopy (ATR-IR), X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM), and scanning electron microscopy (SEM). The experimental results show that the copper surface which adsorbed the target armed molecules exhibited an excellent inhibitory effect on Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus). The potentiodynamic polarization plots and electrochemical impedance spectroscopy demonstrate that the DNs of 0.100 mM achieved over 95% corrosion inhibition efficiency for copper in 0.5 M H2SO4 solution at 298 K. The results given in this study may guide us to achieve bacterial and corrosion resistances for copper based on the drug-included armed molecules. |
| Keywords: | adsorption films antibacterial anticorrosion armed molecules copper |