The desalination plants wieldy used CuNi alloys. However, it faces a fundamental corrosion problem in a 3.5% NaCl solution containing sulfide ions. In this research, we have examined ionic liquid's corrosion and bacterial inhibition activity, i.e., 1-Dodecyl-3-methylimidazolium iodide (IMD-IL). The obtained data from weight loss and electrochemical reveals the corrosion inhibitive performance of IMD-IL is 96.8% at 100 mg/L. The EIS suggests increasing the charge transfer resistance and film resistance with increasing IMD-IL amount, supporting the inhibitive action of IMD-IL molecules. The biological activity results reveal the deactivation of SRB action after the addition of IMD-IL molecules. The SEM and EDX studies support the IMD-IL adsorption onto the CuNi surface. The molecular docking results confirmed that IMD-IL could bind the cytochrome c, inhibiting its activity and thereby interrupting the electron transport pathway between bacteria and the CuNi.

海水淡化厂广泛使用铜镍合金。然而，它在含硫离子的 3.5% NaCl 溶液中面临着根本的腐蚀问题。在这项研究中，我们检测了离子液体的腐蚀和细菌抑制活性，即 1-Dodecyl-3-methylimidazolium iodide (IMD-IL)。从失重和电化学获得的数据表明，IMD-IL 在 100 mg/L 时的缓蚀性能为 96.8%。EIS 表明电荷转移电阻和薄膜电阻随着 IMD-IL 量的增加而增加，支持 IMD-IL 分子的抑制作用。生物活性结果揭示了添加 IMD-IL 分子后 SRB 作用的失活。SEM 和 EDX 研究支持 IMD-IL 吸附到 CuNi 表面上。