Construction of eco-friendly dual carbon dots ratiometric fluorescence probe for highly selective and efficient sensing mercury ion
作者：
Yongli Liu*;Xiaoyan Su;Huanjia Liu;Guifen Zhu;Guobei Ge;...
通讯作者：
Yongli Liu;Qingxiang Zhou
作者机构：
School of Environment, Henan Key Laboratory for Environmental Pollution Control, Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Normal University, Xinxiang 453007, China
College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing 102249, China
通讯机构：
College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing 102249, China
School of Environment, Henan Key Laboratory for Environmental Pollution Control, Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Normal University, Xinxiang 453007, China
语种：
英文
期刊：
环境科学学报(英文版)
ISSN：
1001-0742
年：
2025
卷：
148
摘要：
In present work, blue carbon dots (b-CDs) were derived from ammonium citrate and guanidine hydrochloride, and red carbon dots (r-CDs) were stemmed from malonate, ethylenediamine and meso‑tetra (4-carboxyphenyl) porphin based on facile hydrothermal method. Eco-friendly ratiometric fluorescence probe was innovatively constructed to effectively measure Hg2+ utilizing b-CDs and r-CDs. The developed probe displayed two typical emission peaks at 450 nm from b-CDs and 650 nm from r-CDs under the excitation at 360 nm. Mercury ion has strong quenching effect on the fluorescence intensity at 450 nm due to the electron transfer process and the fluorescence change at 450 nm was used...
