摘要

A facile photoluminescent probe for picric acid (PA) detection was developed using photoluminescent carbon nanodots (C-dots), which was obtained from a traditional Chinese medicinal material Sichuan Bergamot via a one-step hydrothermal method for the first time. The as-prepared photoluminescent C-dots show favorable blue color photoluminescence with the maximum emission at 440 nm. It has been successfully applied as a photoluminescent probe for the detection of PA. This photoluminescent probe exhibits excellent sensitivity and selectivity toward PA from 0.4 mu M to 80 mu M with correlation coefficient (r) of 0.9987. The limit of detection (LOD) for PA is 82 nM. Furthermore, the proposed C-dots for photoluminescent probe detection of PA in real water samples (river water, refinery wastewater and pharmaceutical factory wastewater) by adding 5 mu M and 20 mu M PA with satisfactory recoveries from 99.5% to 101.5%. These novel photoluminescent C-dots is promising in environmental analysis of PA.

  • 出版日期2018-3
  • 单位四川文理学院