Issue 26, 2024

Simple fluorochromic detection of chromium with ascorbic acid functionalized luminescent Bio-MOF-1

Abstract

The bioaccumulation of various heavy metals in the environment and agriculture is posing serious hazards to human health. Hexavalent chromium is one of the most encountered heavy metal pollutants. The routine monitoring of Cr(VI) via simple methods assumes great analytical significance in sectors like environmental safety, food quality, etc. This study reports a novel biocompatible and luminescent metal–organic framework (ascorbic acid functionalized Bio-MOF-1) based “Turn-on” nanoprobe for rapid and sensitive optical detection of Cr(VI). Bio-MOF-1 has been synthesized, functionalized with ascorbic acid (AA), and then comprehensively characterized for its key material properties. The presence of Cr(VI) results in the photoluminescence recovery of Bio-MOF-1/AA. Using the above approach, Cr(VI) is detected over a wide concentration range of 0.02 to 20 ng mL−1, with the limit of detection being 0.01 ng mL−1. The nanoprobe is capable of detecting Cr(VI) in real water as well as in some spiked food samples. Hence, the ascorbic acid functionalized Bio-MOF-1 nanoprobe is established as a potential on-field detection tool for Cr(VI).

Graphical abstract: Simple fluorochromic detection of chromium with ascorbic acid functionalized luminescent Bio-MOF-1

Supplementary files

Article information

Article type
Paper
Submitted
23 févr. 2024
Accepted
24 mai 2024
First published
31 mai 2024

Nanoscale, 2024,16, 12523-12533

Simple fluorochromic detection of chromium with ascorbic acid functionalized luminescent Bio-MOF-1

G. Kaur, S. Sharma, N. Bhardwaj, M. K. Nayak and A. Deep, Nanoscale, 2024, 16, 12523 DOI: 10.1039/D4NR00768A

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