Issue 30, 2020

A phenol phosphorescent microsensor of mesoporous molecularly imprinted polymers

Abstract

Based on the optical quenching phenomenon, a smart mesoporous phosphorescent microsensor was built. It is a phenol microsensor, which inherits a high selectivity of molecularly imprinted polymers (MIPs) and room-temperature phosphorescence (RTP) properties of Mn-doped ZnS quantum dots (QDs). On the surface of silane-modified Mn-doped ZnS QDs, the phenol microsensor was synthesized by a sol–gel process. Because of the presence of a porogenic agent, a mesoporous structure played an important role in increasing the detection sensitivity. The MPTS-modified Mn-doped ZnS QDs were used as solid supports and auxiliary monomers. Under optimal conditions, the experiment for the detection of phenol had a linear range of 5.0 to 50 μmol L−1 with a correlation coefficient of 0.9983 and a high imprinting factor (IF) of 3.28. In addition, the as-prepared Mn-doped ZnS QD@ms-MIPs were successfully applied for phenol determination and selectivity in water samples. Therefore, this study provides a highly selective and sensitive mesoporous phosphorescent microsensor for the detection of phenol.

Graphical abstract: A phenol phosphorescent microsensor of mesoporous molecularly imprinted polymers

Article information

Article type
Paper
Submitted
28 Mär 2020
Accepted
20 Apr 2020
First published
09 Mai 2020
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2020,10, 17906-17913

A phenol phosphorescent microsensor of mesoporous molecularly imprinted polymers

X. Lv and P. Gao, RSC Adv., 2020, 10, 17906 DOI: 10.1039/D0RA02834G

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