Development of colorimetric probe using robust zinc-MOF and its consistent melamine sponge composite: Instantaneous N3–, La3+ sensing and degradation applications
Vibhav Shukla , Nazrul Haq , Kafeel Ahmad Siddiqui
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引用次数: 0
Abstract
The crystalline sponge method (CSM), which involves soaking a target molecule into a crystalline metal-organic framework (MOF), offers a promising approach by eliminating the need for high-quality single crystals of the target compound. To broaden the scope of compounds that can be analyzed using CSM, it is essential to investigate various MOFs. In this study, we focused on evaluating the potential of a zinc-based MOF, specifically [Zn3(Cei)2((Bimb)3] (Zinc-MOF), as a CSM host. We successfully synthesized and thoroughly characterized Zinc-MOF. Additionally, we developed a Zinc-MOF@melamine sponge (Zinc-MOF@MS) composite, which exhibited significant photocatalytic activity by degrading hazardous organic dyes such as Rose Bengal (RB) and Crystal Violet (CV), achieving degradation efficiencies of 98.95 % and 92.51 %, respectively, after 120 min of exposure to visible sunlight. The luminescent properties of the Zinc-MOF were also explored, demonstrating strong luminescent emission and excellent chemical stability. Furthermore, Zinc-MOF showed remarkable sensing capabilities, selectively detecting La³⁺ cations and N₃⁻ anions in aqueous solutions through luminescence quenching.
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