氯化铁诱导合成对4-硝基苯酚还原具有显著活性的银纳米盘。
Ferric Chloride-Induced Synthesis of Silver Nanodisks with Considerable Activity for the Reduction of 4-Nitrophenol.
作者信息
Chen Jie, He Linlin, Fan Zhengyang, Yang Hongwei, Mao Huaming, Ren Yu, Yin Jungang, Dai Wei, Cui Hao
机构信息
State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Kunming Institute of Precious Metals, 650106 Kunming, People's Republic of China.
出版信息
ACS Omega. 2022 Aug 12;7(33):28860-28865. doi: 10.1021/acsomega.2c01928. eCollection 2022 Aug 23.
Silver nanodisks (AgNDs) have been successfully synthesized by using ferric chloride as an auxiliary agent in the presence of polyvinylpyrrolidone and ,-dimethylformamide as both a solvent and a reducing agent. The mass ratio of reactants, temperature, and time were demonstrated to be the key factors determining the morphology of the product, and the conversion of Fe/Fe ions played an important role in increasing the ratio of silver nanosheets (AgNSs). As the reaction prolonged, the etching effect of Cl ions on the tips of AgNSs became more and more obvious, which made the obtained typical polygonal AgNSs turn into AgNDs eventually. In addition, the prepared AgNDs exhibited a considerable catalytic activity in the reduction of 4-nitrophenol.
通过在聚乙烯吡咯烷酮存在下使用氯化铁作为助剂，并以N，N-二甲基甲酰胺作为溶剂和还原剂，成功合成了银纳米盘（AgNDs）。反应物的质量比、温度和时间被证明是决定产物形态的关键因素，并且Fe³⁺/Fe²⁺离子的转化在提高银纳米片（AgNSs）的比例方面发挥了重要作用。随着反应的延长，Cl⁻离子对AgNSs尖端的蚀刻作用越来越明显，这使得获得的典型多边形AgNSs最终变成了AgNDs。此外，所制备的AgNDs在4-硝基苯酚的还原反应中表现出相当大的催化活性。
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