Rapid CO2-laser scribing fabrication of an electrochemical sensor for the direct detection of Pb2+ and Cd2+

被引:4
|
作者
Chu, Guanglei [1 ,2 ,6 ]
Zhang, Yanyan [2 ]
Zhou, Zhongrui [2 ]
Zeng, Weixuan [1 ]
Chen, Dongfei [3 ]
Yu, Siping [1 ,5 ]
Wang, Jiemin [4 ]
Guo, Yemin [2 ]
Sung, Xia [2 ]
Li, Ming [1 ,2 ]
机构
[1] Hunan Acad Agr Sci, Hunan Agr Equipment Res Inst, Changsha 410125, Peoples R China
[2] Shandong Univ Technol, Sch Agr Engn & Food Sci, Zibo 255049, Peoples R China
[3] Univ New South Wales, Sch Chem, Sydney, NSW 2052, Australia
[4] Hunan Acad Agr Sci, Hunan Rice Res Inst, Changsha 410125, Peoples R China
[5] Hunan Univ, Longping Branch, Coll Biol, Changsha 410125, Peoples R China
[6] Natl Univ Singapore, Dept Mat Sci & Engn, 21 Lower Kent Ridge Rd, Singapore 119077, Singapore
关键词
laser-induced graphene; electrochemical sensor; rapid fabrication; heavy-metal ions; TRACE HEAVY-METALS; ELECTRODE; CD(II); IONS; COMPOSITE; PB(II);
D O I
10.1007/s12274-023-5471-y
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Laser-induced graphene (LIG) is a highly promising preparation material for electrochemical sensors; however, its preparation speed and nanomaterial modification steps significantly limit its mass production. Herein, this study proposed a new laser printing strategy that considerably improved the preparation speed of LIG with excellent electrochemical performance. Using the optimal parameters (laser power of 1%, scribing spacing of 0.12 mm, and scribing speed of 100 mm.s(-1)), it took only 14.2 s to complete the preparation of the detection electrode. Thus, we successfully detected Cd2+ and Pb2+ without any toxic reagents or electrode modification steps. The limits of detection of the sensor were 0.914 and 0.916 mu g.L-1 for Cd2+ and Pb2+, respectively, which are significantly lower than the required values for drinking-water quality, according to the World Health Organization guidelines. This study provides a novel approach for the rapid detection of heavy-metal ions.
引用
收藏
页码:7671 / 7681
页数:11
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