Kang Kaiming, Liu Baoyou, Yue Gang, Ren Hongwei, Zheng Keyang, Wang Limin, Wang Zhiqiang
School of Environmental Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei 050018, PR China.
School 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.
Ecotoxicol Environ Saf. 2023 Apr 15;255:114795. doi: 10.1016/j.ecoenv.2023.114795. Epub 2023 Mar 16.
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 Fe and Pd. It has a detection limit of 0.001 nM for Fe and 0.23 µM for Pd in pure water. It has a detection limit of 3.2 nmol/L for Fe and 0.36 µmol/L for Pd 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.
采用水热法，以离子液体为改性剂、葡萄皮为碳源制备了一种新型绿色碳量子点（ILB-CQDs），其由氢键晶格结构离子液体制备而成，使得碳量子点呈环状稳定结构，稳定期超过90天。离子液体对纤维素还有催化作用，使得制备的碳量子点表现出良好的优势，如粒径均匀、量子产率高（26.7%）以及荧光性能非常好。这是一种用于选择性检测铁和钯的智能材料。在纯水中，其对铁的检测限为0.001 nM，对钯的检测限为0.23 μM。在实际水中，其对铁的检测限为3.2 nmol/L，对钯的检测限为0.36 μmol/L，均符合世界卫生组织饮用水标准要求。并且能实现超过90%的水体修复效果。
