Smartphone-Assisted Sensing Platform Based on a Zn-MOF Mixed-Matrix Membrane for Visual and On-Site Quantification of DCN, Fe3+, and Cr2O72− in Water Samples

2026-05-08

PRE

Tengteng Xu

Mingyuan Lei

Xuze Pan

Kunnan Yang

Xiaoyu Wang

Qingfu Zhang *

DOI：10.1016/j.dyepig.2026.113837

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Abstract

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• A new Zn-MOF was synthesized and fabricated into a fluorescent 1@PMMA membrane. • 1@PMMA showed sensitive and selective sensing of DCN, Fe3+, and Cr2O72− in water. • The fluorescence quenching mechanisms toward the three analytes were investigated. • A smartphone-assisted platform enabled visual and on-site quantitative analysis.

Keywords:

Zn-MOF

fluorescent membrane

DCN detection

Fe3+ detection

Cr2O72− detection

Smartphone-Assisted Sensing Platform Based on a Zn-MOF Mixed-Matrix Membrane for Visual and On-Site Quantification of DCN, Fe3+, and Cr2O72− in Water Samples

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