期刊
NANO RESEARCH
卷 16, 期 5, 页码 7671-7681出版社
TSINGHUA UNIV PRESS
DOI: 10.1007/s12274-023-5471-y
关键词
laser-induced graphene; electrochemical sensor; rapid fabrication; heavy-metal ions
This study proposes a new laser printing strategy that greatly improves the preparation speed of laser-induced graphene (LIG) with excellent electrochemical performance. By optimizing the parameters, the detection electrode can be prepared in just 14.2 seconds, and Cd2+ and Pb2+ can be successfully detected. The study provides a novel approach for the rapid detection of heavy-metal ions.
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.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据