Статья

Preparation of carbon quantum dots from ionic liquid modified biomass for the detection of Fe3+ and Pd2+ in environmental water

Kaiming KangSchool of Environmental Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei 050018, PR ChinaBaoyou LiuSchool of Environmental Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei 050018, PR China; Key Laboratory of Pollution Prevention and Control in Hebei Province, Shijiazhuang, Hebei 050018, PR China. Electronic address: [email protected]Gang YueSchool of Environmental Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei 050018, PR China; Ningxia Screen Display Material Technology Innovation Center, Ningxia Sinostar Display Material Co., Ltd, Yinchuan, Ningxia 750000, PR China. Electronic address: [email protected]Hongwei RenSchool of Environmental Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei 050018, PR China; Key Laboratory of Pollution Prevention and Control in Hebei Province, Shijiazhuang, Hebei 050018, PR ChinaKeyang ZhengSchool of Environmental Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei 050018, PR ChinaLimin WangZhiqiang Wang

2023en

ABI

Аннотация

A new type of green carbon quantum dots (ILB-CQDs) was prepared by hydrothermal method using ionic liquid as a modifier and grape skin as carbon source, and was obtained from hydrogen-bonded lattice structure ionic liquid preparation, which makes the CQDs in a ring-like stable structure with a stability period of more than 90 day. There is also the catalytic effect of the ionic liquid on cellulose, which makes the prepared CQDs show good advantages, such as uniform particle size, high quantum yield (26.7%), and very good fluorescence performance. This is a smart material for the selective detection of Fe3+ and Pd2+. It has a detection limit of 0.001 nM for Fe3+ and 0.23 µM for Pd2+ in pure water. It has a detection limit of 3.2 nmol/L for Fe3+ and 0.36 µmol/L for Pd2+ in actual water, both of which meet the requirements of WHO drinking water standards. And there is to achieve more than 90% of water restoration effect.

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Идентификаторы

DOI: 10.1016/j.ecoenv.2023.114795

Цитирования и источники

Цитирований: 2Использованных источников: 0

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