生物质碳点对Q235钢的缓蚀性能研究  

Corrosion Inhibition Performance of Biomass-derived Carbon Dots on Q235 Steel

作　　者：龙武剑[1,2] 唐杰 罗启灵[1,2] 丘章鸿[3] 王海龙 LONG Wujian;TANG Jie;LUO Qiling;QIU Zhanghong;WANG Hailong(College of Civil and Transportation Engineering,Shenzhen University,Shenzhen 518060,China;Guangdong Provincial Key Laboratory of Durability for Marine Civil Engineering,Shenzhen 518060,China;Guangdong Yuheng Engineering Testing Technology Co.,Ltd.,Guangzhou 511356,China)

机构地区：[1]深圳大学土木与交通工程学院,深圳518060 [2]广东省滨海土木工程耐久性重点实验室,深圳518060 [3]广东裕恒工程检测技术有限责任公司,广州511356

出　　处：《中国腐蚀与防护学报》2024年第3期807-814,共8页Journal of Chinese Society For Corrosion and Protection

基　　金：国家自然科学基金-山东联合基金(U2006223);广东省重点领域研发计划(2019B111107003);广东省基础与应用基础研究基金(2023A1515012136)。

摘　　要：金属腐蚀威胁金属设施的安全性和可靠性,也加剧了环境污染和经济损失问题。然而,使用可持续、可再生且经济的原材料制备绿色缓蚀剂现阶段仍是有挑战性难题。本文以荔枝叶为原料制备了生物质基碳点(CDs),并采用失重法、电化学阻抗谱和动电位极化曲线系统研究了其在1 mol/L HCl中对Q235钢的缓蚀性能。所获得的生物质基CDs具有丰富的含氧和含氮官能团,这些官能团使CDs在1 mol/L HCl溶液中保持稳定,具有长期有效的缓蚀性能。The corrosion of metallic materials poses a threat to the safety and reliability of metallic facility and equipment,as well as exacerbating environmental pollution and economic losses.However,the use of sustainable,renewable and economical raw materials to prepare green corrosion inhibitors is still a challenging issue at this stage.Herein,biomass-based carbon dots(CDs)were prepared with lychee leaves as raw material,and their corrosion inhibition performance on Q235 steel in 1 mol/L HCl was assessed by means of mass loss measurement,electrochemical impedance spectroscope,and potentiodynamic polarization measurement.Results indicate that the obtained biomass-derived CDs contain numerous oxygen and nitrogen functional groups,which enable them to remain stable in 1 mol/L HCl solution and exhibit long-term stable corrosion inhibition performance.

关 键 词：碳点 缓蚀剂 吸附 电化学实验 

分 类 号：TG142.71[一般工业技术—材料科学与工程]