Nanomaterials (Basel, Switzerland) · 2020
Highly Luminescent Copper Nanoclusters Stabilized by Ascorbic Acid for the Quantitative Detection of 4-Aminoazobenzene.
СтатьяНазвание и аннотация: Перевод в очереди
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Li Qiang, Li Yunhao, Li Heguo, Yan Xiaoshan, Han Guolin, Chen Feng, Song Zhengwei, Zhang Jianqiao, Fan Wen, Yi Changfeng, Xu Zushun, Tan Bien, Yan Wei
Аннотация
As one of the widely studied metal nanoclusters, the preparation of copper nanoclusters (Cu NCs) by a facile method with high fluorescence performance has been the interest of researchers. In this paper, a simple, green, clean, and time-saving chemical etching method was used to synthesize water-soluble Cu NCs using ascorbic acid (AA) as the reducing agent. The as-prepared Cu NCs showed strong green fluorescence (with a quantum yield as high as 33.6%) and high ion stability, and good antioxidant activity as well. The resultant Cu NCs were used for the detection of 4-aminoazobenzene (one of 24 kinds of prohibited textile compounds) in water with a minimum detection limit of 1.44 μM, which has good potential for fabric safety monitoring.