Dual-Mode Fluorescence and Visual Fluorescent Test Paper Detection of Copper Ions and EDTA

Wanqing Xu; Xiaoliang Hao; Tongtong Li; Shujuan Dai; Zhigang Fang

doi:10.1021/acsomega.1c04406

Dual-Mode Fluorescence and Visual Fluorescent Test Paper Detection of Copper Ions and EDTA

ACS Omega. 2021 Oct 19;6(43):29157-29165. doi: 10.1021/acsomega.1c04406. eCollection 2021 Nov 2.

Authors

Wanqing Xu¹, Xiaoliang Hao¹, Tongtong Li¹, Shujuan Dai², Zhigang Fang¹

Affiliations

¹ School of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114051, PR China.
² School of Mining Engineering, University of Science and Technology Liaoning, Anshan 114051, PR China.

Abstract

In this study, blue-emission carbon dots were prepared from the legumes of the vegetable Pisum sativum Linn. by one-step carbonization. The fluorescence of a carbon dot (CDs) solution can be quenched by copper ions and recovered by ethylenediaminetetraacetic acid (EDTA). In addition, two kinds of visual fluorescent filter papers were prepared. Finally, a dual-mode fluorescence and visual fluorescent test paper was employed for the detection of copper ions and EDTA. The simple synthesis method and the high safety enable this material to have more application possibilities.