Department of Chemistry, Dr. B R Ambedkar National Institute of Technology, Jalandhar 144011, Punjab, India.
DAV University, Jalandhar 144001, Punjab, India.
Spectrochim Acta A Mol Biomol Spectrosc. 2020 Apr 5;230:118087. doi: 10.1016/j.saa.2020.118087. Epub 2020 Jan 21.
Fluorescent polyhydroquinoline (PHQ) derivative was fabricated utilizing one-pot engineered course. The PHQ derivative indicated aggregation induced emission enhancement (AIEE) with arrangement of nanoaggregates of size 11-13 nm in 95% watery DMF medium. The fluorescence emission of PHQ nanoaggregates was extinguished by including TNP and Cr (VI). They indicated prevalent fluorescence quenching towards both TNP and Cr (VI) over other meddling nitro-compounds and metal particles. In light of results got we presumed that both photo-induced fluorescence quenching of PHQ nanoaggregates by TNP, while Inner Filter Effect (IFE) was in charge of fluorescence quenching of PHQ nanoaggregates by Cr (VI). The PHQ nanoaggregates empowered identification of TNP and Cr (VI) down to 0.66 μM (TNP) and 0.28 μM (Cr (VI)). The use of PHQ nanoaggregates were reached out for location of TNP and Cr (VI) in genuine water tests.
利用一锅法制备了荧光聚对苯二胺（PHQ）衍生物。该 PHQ 衍生物在 95%水-DMF 介质中表现出聚集诱导发射增强（AIEE）特性，其纳米聚集体的大小为 11-13nm。在含有 TNP 和 Cr（VI）的情况下，PHQ 纳米聚集体的荧光发射被猝灭。它们对 TNP 和 Cr（VI）表现出比其他干扰的硝基化合物和金属颗粒更优越的荧光猝灭作用。根据所得结果，我们推测 TNP 通过光诱导 PHQ 纳米聚集体的荧光猝灭，而内滤效应（IFE）则负责 Cr（VI）猝灭 PHQ 纳米聚集体的荧光。PHQ 纳米聚集体将 TNP 和 Cr（VI）的检测限分别降低到 0.66μM（TNP）和 0.28μM（Cr（VI））。PHQ 纳米聚集体在实际水样中用于 TNP 和 Cr（VI）的定位。
