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"Off-on" fluorescence sensor based on phytic acid carbon dots for OH- /H+ detection in metal corrosion

文献类型：期刊论文

作者Liao, Xiufen1,2; Chen, Yuanqing2; Fan, Liang1; Chen, Jiaxin2; Tian, Qixin2; Jiang, Qiumei2; Lai, Junxiang2; Sun, Congtao1,2; Hou, Baorong1,2
刊名APPLIED SURFACE SCIENCE
出版日期2025-02-15
卷号682页码:12
关键词Phytic acid carbon dots "off-on" fluorescence sensor Corrosion monitoring
ISSN号0169-4332
DOI10.1016/j.apsusc.2024.161680
通讯作者Fan, Liang(fanl@qdio.ac.cn) ; Lai, Junxiang(jxlai@gxas.cn)
英文摘要Metal corrosion has caused serious waste of resources and materials, and also caused great pollution to the environment. Therefore, it is of great significance to develop a green, fast, and simple method for corrosion sensing. Herein, a phytic acid carbon dots (PA-CDs) based green "off-on" fluorescence sensor was developed for OH- and H+ detection in metal corrosion. The fluorescence of PA-CDs gradually turned off as the concentration of OH- increased from 20 to 340 mu mol/L, while its fluorescence was turned on with the addition of 60 similar to 230 mu mol/L of H+ under ultrasonic treatment. This can be utilized for the detection of OH- and H+, with estimated limits of detection at 7.33 mu mol/L and 20.34 mu mol/L, respectively. The "off-on" behavior of PA-CDs towards the corrosion species OH- and H+ can be attributed to its enhanced aggregation and disaggregation, which are induced by the deprotonation and protonation of the -H2PO4 functional groups. The PA-CDs were loaded onto the film and subsequently employed for Q235 steel packaging. The results revealed that the as-proposed green fluorescence "turn-off" phenomenon can be visually observed after the onset of corrosion on the steel sheet, thereby demonstrating the potential application of PA-CDs film for early-stage corrosion monitoring.
WOS关键词QUANTUM DOTS ; NANOSENSORS
资助项目China Postdoctoral Science Foun-dation[2023MD734150] ; Shandong Excellent Youth Science Founda-tion Program[2023HWYQ-100] ; Science and Technology Program of Guangxi Province[AB23026114] ; Science and Technology Program of Guangxi Province[AB23026059] ; Science and Technology Program of Guangxi Province[AA23026007]
WOS研究方向Chemistry ; Materials Science ; Physics
语种英语
WOS记录号WOS:001355210500001
出版者ELSEVIER
源URL[http://ir.qdio.ac.cn/handle/337002/199456]  
专题海洋研究所_海洋腐蚀与防护研究发展中心
通讯作者Fan, Liang; Lai, Junxiang
作者单位1.Chinese Acad Sci, Inst Oceanol, Key Lab Adv Marine Mat, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China
2.Guangxi Acad Sci, Guangxi Acad Marine Sci, Inst Marine Corros Protect, Guangxi Key Lab Marine Environm Sci, Nanning 530007, Peoples R China
推荐引用方式
GB/T 7714		 Liao, Xiufen,Chen, Yuanqing,Fan, Liang,et al. "Off-on" fluorescence sensor based on phytic acid carbon dots for OH- /H+ detection in metal corrosion[J]. APPLIED SURFACE SCIENCE,2025,682:12.
APA Liao, Xiufen.,Chen, Yuanqing.,Fan, Liang.,Chen, Jiaxin.,Tian, Qixin.,...&Hou, Baorong.(2025)."Off-on" fluorescence sensor based on phytic acid carbon dots for OH- /H+ detection in metal corrosion.APPLIED SURFACE SCIENCE,682,12.
MLA Liao, Xiufen,et al.""Off-on" fluorescence sensor based on phytic acid carbon dots for OH- /H+ detection in metal corrosion".APPLIED SURFACE SCIENCE 682(2025):12.

入库方式： OAI收割

来源：海洋研究所

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