Fabrication of an AMC/MMT Fluorescence Composite for its Detection of Cr(VI) in Water

Yanke Wei; Lefu Mei; Rui Li; Meng Liu; Guocheng Lv; Jianle Weng; Libing Liao; Zhaohui Li; Zhaohui Li; Lin Lu

doi:10.3389/fchem.2018.00367

Frontiers in Chemistry (Aug 2018)

Fabrication of an AMC/MMT Fluorescence Composite for its Detection of Cr(VI) in Water

Yanke Wei,
Lefu Mei,
Rui Li,
Meng Liu,
Guocheng Lv,
Jianle Weng,
Libing Liao,
Zhaohui Li,
Zhaohui Li,
Lin Lu

Affiliations

Yanke Wei: Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, China
Lefu Mei: Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, China
Rui Li: State Grid Corporation of China, Beijing, China
Meng Liu: Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, China
Guocheng Lv: Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, China
Jianle Weng: Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, China
Libing Liao: Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, China
Zhaohui Li: Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, China
Zhaohui Li: Geosciences Department, University of Wisconsin—Parkside, Kenosha, WI, United States
Lin Lu: State Grid Corporation of China, Beijing, China

DOI: https://doi.org/10.3389/fchem.2018.00367
Journal volume & issue: Vol. 6

Abstract

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Hexavalent chromium species, Cr(VI), which can activate teratogenic processes, disturb DNA synthesis and induce mutagenic changes resulting in malignant tumors. The detection and quantification of Cr(VI) is very necessary. One of the rapid and simple methods for contaminant analysis is fluorescence detection using organic dye molecules. Its application is limited owing to concentration quenching due to aggregation of fluorescent molecules. In this study, we successfully intercalated 7-amino-4-methylcoumarin (AMC) into the interlayer space of montmorillonite (MMT), significantly inhibited fluorescence quenching. Due to enhanced fluorescence property, the composite was fabricated into a film with chitosan to detect Cr(VI) in water. Cr(VI) can be detected in aqueous solution by instruments excellent, ranging from 0.005 to 100 mM with a detection limit of 5 μM.

Published in Frontiers in Chemistry

ISSN: 2296-2646 (Online)
Publisher: Frontiers Media S.A.
Country of publisher: Switzerland
LCC subjects: Science: Chemistry
Website: http://journal.frontiersin.org/journal/chemistry

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