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

doi:10.1016/j.apsusc.2024.161680

	"Off-on" fluorescence sensor based on phytic acid carbon dots for OH^- /H⁺ detection in metal corrosion
	Liao, Xiufen 1,2; Chen, Yuanqing 1; Fan, Liang 2; Chen, Jiaxin 1; Tian, Qixin 1; Jiang, Qiumei 1; Lai, Junxiang 1; Sun, Congtao 1,2; Hou, Baorong 1,2
	2025-02-15
发表期刊	APPLIED SURFACE SCIENCE
ISSN	0169-4332
卷号	682 页码:12
通讯作者	Fan, Liang([email protected]) ; Lai, Junxiang([email protected])
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.
关键词	Phytic acid carbon dots "off-on" fluorescence sensor Corrosion monitoring
DOI	10.1016/j.apsusc.2024.161680
收录类别	SCI
语种	英语
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
WOS类目	Chemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:001355210500001
出版者	ELSEVIER
WOS关键词	QUANTUM DOTS ; NANOSENSORS
引用统计
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/199457
专题	海洋环境腐蚀与生物污损重点实验室
通讯作者	Fan, Liang; Lai, Junxiang
作者单位	1.Guangxi Acad Sci, Guangxi Acad Marine Sci, Inst Marine Corros Protect, Guangxi Key Lab Marine Environm Sci, Nanning 530007, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Key Lab Adv Marine Mat, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, 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.