Surface molecularly imprinted polymers based ZnO quantum dots as fluorescence sensors for detection of diethylhexyl phthalate with high sensitivity and selectivity

• Published in: Polymer international Vol. 67; no. 8; pp. 1003 - 1010
• Main Authors: Wang, Yangyang, Zhou, Zhiping, Xu, Wanzhen, Luan, Yu, Lu, Yi, Yang, Yanfei, Liu, Tianshu, Li, SongJun, Yang, Wenming
• Format: Journal Article
• Language: English
• Published: Chichester, UK John Wiley & Sons, Ltd 01.08.2018; Wiley Subscription Services, Inc
• Subjects: Chemical synthesis; Crosslinking; diethylhexyl phthalate; Dioctyl phthalate; Ethylene glycol; Fluorescence; fluorescence sensor; Imprinted polymers; Methacrylic acid; Molecular chains; molecularly imprinted polymers; Optical materials; Organic chemistry; Polymers; Quantum dots; selective recognition; Yeast; Zinc oxide; ZnO quantum dots
• ISSN: 0959-8103; 1097-0126
• DOI: 10.1002/pi.5596

This work describes the preparation of molecularly imprinted polymers using ZnO quantum dots, which were used for the selective detection of diethylhexyl phthalate (DEHP). Methacrylic acid, ethylene glycol dimethacrylate, 2,2′‐azobis(2‐methylpropionitrile) and ZnO were used as functional monomer, crosslinker, initiator and optical material, respectively. Molecularly imprinted polymers were successfully synthesized, and the linear relationship between fluorescence intensity and amount was from 0.5 to 40 µmol L−1 for DEHP. The coefficient of correlation was 0.9923 and the imprinting factor was 11.16. The results were above 97.50% and relative standard deviation below 3.86% for the detection of DEPH in actual water samples. This study could provide a novel method using molecularly imprinted polymers for highly selective and sensitive detection of DEHP. © 2018 Society of Chemical Industry This work describes the preparation of molecularly imprinted polymers using ZnO quantum dots, which were used for the selective detection of diethylhexyl phthalate (DEHP).