Role of π-π stacking and synergistic interactions in the colorimetric detection of Malachite Green using Zeolitic Imidazolate Framework incorporated with silver-doped Graphitic Carbon Nitride (ZIF-67@Ag-g-C3N4) based composite

IF 5.3 2区化学 Q1 CHEMISTRY, ANALYTICAL

Microchimica Acta Pub Date : 2025-03-03 DOI:10.1007/s00604-025-07071-7

A. Joel Amalan, S. Gopika Devi, M. Kanagalakshmi, Anitha Pius

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Abstract

The facile synthesis is demonstrated of a composite consisting of Zeolitic Imidazolate Framework incorporated with Silver-doped Graphitic Carbon Nitride (ZIF-67@Ag-g-C₃N₄) for the sensitive and selective detection of Malachite Green (MG) through spectrophotometry and colorimetry. The composite was prepared through hydrothermal treatment of ZIF-67 and Ag-g-C₃N₄, with the latter two being prepared via mechanical stirring and calcination, respectively. Various techniques were used to examine the structural and morphological characteristics of ZIF-67@Ag-g-C₃N₄. The average particle size of the composite material was found to be 0.488 µm. ZIF-67@Ag-g-C₃N₄ demonstrated enhanced colorimetric sensing of MG, attributed to the π-π stacking and synergistic interactions between ZIF-67 and Ag-g-C₃N₄, revealing a detection limit of MG as low as 12.72 µM. With its versatile and efficient approach to detect MG contamination from several kinds of water sources, the developed composite material represented an exciting breakthrough in environmental monitoring.

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来源期刊

Microchimica Acta 化学-分析化学

CiteScore

9.80

自引率

5.30%

发文量

410

审稿时长

2.7 months

期刊介绍： As a peer-reviewed journal for analytical sciences and technologies on the micro- and nanoscale, Microchimica Acta has established itself as a premier forum for truly novel approaches in chemical and biochemical analysis. Coverage includes methods and devices that provide expedient solutions to the most contemporary demands in this area. Examples are point-of-care technologies, wearable (bio)sensors, in-vivo-monitoring, micro/nanomotors and materials based on synthetic biology as well as biomedical imaging and targeting.