Journal of Chaohu University ›› 2022, Vol. 24 ›› Issue (3): 88-96.doi: 10.12152/j.issn.1672-2868.2022.03.013
YANG Ji-liang，YUE Xian-tian：School of Chemistry and Material Engineering, Chaohu University；CHEN Jie-xiao：Wenzhou Environmental Technology Co., Ltd
Rapid detection of sulphonamide antibiotic contamination in the environment is important for water
environment monitoring and management. To fabricate carbon quantum dots based fluorescent molecularly imprinted
sensor（CQDs-MIP） with specific recognition ability for sulfamethazine, nitrogen-doped carbon quantum dots, 3-aminopropyltriethoxysilane, ethylene glycol dimethacrylate and sulfamethazine were used as the fluorescence source,
functional monomer, cross-linker and template molecule respectively. The effects of functional monomer addition,
solvent type and cross-linker type on the performance of CQDs-MIP were investigated by adsorption experiments.
The experimental results showed that the adsorption process of CQDs-MIP on sulfamethazine was in accordance
with the Langmuir adsorption isotherm model and the second-order kinetic equation, and showed high selectivity for
sulfamethazine with the selectivity coefficients of 2.28 and 3.02 with respect to sulfadiazine and sulfadimethazine,
respectively. The linear range of CQDs-MIP for sulfamethazine was 2~100 mg·L-1 with a linear correlation coefficient
of R2 = 0.9972; CQDs-MIP has the ability to detect sulfamethazine rapidly and sensitively.
carbon quantum dots,
YANG Ji-liang, CHEN Jie-xiao, YUE Xian-tian. Preparation of Carbon Quantum Dots Based Fluorescent Molecularly Imprinted Probes and Its Specific Recognition for Sulfamerazine[J].Journal of Chaohu University, 2022, 24(3): 88-96.
Add to citation manager EndNote|Reference Manager|ProCite|BibTeX|RefWorks