壳聚糖衍生物在氯化钠溶液中对 Q235 的缓蚀作用及其与 ZnO 的协同效应。
Inhibition of Q235 corrosion in sodium chloride solution by chitosan derivative and its synergistic effect with ZnO.
机构信息
School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, PR China.
School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, PR China.
出版信息
Carbohydr Polym. 2022 Nov 15;296:119936. doi: 10.1016/j.carbpol.2022.119936. Epub 2022 Aug 2.
A novel chitosan Schiff base derivative (CVZ) doped with ZnO nanoparticles (ZnONPs) was synthesized and investigated. The corrosion protection performance was evaluated via electrochemical measurements and surface analyses. Compared to the undoped derivative (CV), the results show that the corrosion inhibition efficiency of CVZ sharply increases from 67.7 % to 99.6 %. The surface mean roughness decreases from 1.2350 μm of the blank sample to 0.7004 μm with CVZ protection. Additionally, the inhibition mechanism of the inhibitor and the synergistic effect between CV and ZnONPs were discussed. The strategy of organic/inorganic hybrid and the synergistic effect can inspire the development of chitosan as a green corrosion inhibitor with low concentration and high efficiency.
一种新型壳聚糖席夫碱衍生物（CVZ）掺杂氧化锌纳米粒子（ZnONPs）被合成并进行了研究。通过电化学测量和表面分析评估了其腐蚀防护性能。与未掺杂的衍生物（CV）相比，结果表明 CVZ 的腐蚀抑制效率从 67.7%急剧增加到 99.6%。CVZ 保护下，表面平均粗糙度从空白样品的 1.2350μm 降低到 0.7004μm。此外，讨论了抑制剂的抑制机制以及 CV 和 ZnONPs 之间的协同效应。有机/无机杂化策略和协同效应可以为壳聚糖作为低浓度、高效率的绿色缓蚀剂的开发提供启示。
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