Unveiling the potential of zirconium-based metal-organic framework as an efficient adsorbent and DNA binderNidhi Rai, Sadgi Jaiswal, Aazad Verma, Santosh Kumar, Jyoti Mittal, and Charu Arora Department of Chemistry, Guru Ghasidas Vishwavidyalaya, Bilaspur, India
E-mail: charuarora77@gmail.com Received: 28 April 2025 Accepted: 8 March 2026 Abstract: In this work, created Zr-BDC MOF was explored for adsorptive elimination of methylene blue dye through a series of tests. The synthesized material was further studied by evaluating FTIR, SEM, and BET surface area. pH, starting MB concentration, reaction duration, and adsorbent dosage were among the several factors that were assessed. The material shows good stability and has a maximum adsorption capacity of 2.5 mg/g obtained by fitting with Hill adsorption isotherm. Other than the Hill adsorption isotherm, the experimental data closely fits the Temkin adsorption isotherm. The sorption kinetics for MB on Zr-BDC MOF was fast, with adsorption kinetics established in 90 min. The pseudo-second-order kinetic model was found to be a good fit for explaining MB adsorption kinetics on Zr-BDC MOFs. The adsorption process is spontaneous and endothermic. Through the chemisorption pathway, it moves forward. The greatest adsorption capacity of 2.5 mg/g is found in batch adsorption. For the first time, we report on the DNA interaction with Zr-BDC MOF in this work, and the binding result is significant with a noticeable blue shift from 259.34 to 252.55 nm. These results may pave the way for the majority of elimination of MB dye through wastewater and for the usage of Zr-BDC MOF as a material in drug delivery systems. Keywords: Methylene blue; Hill adsorption isotherm; Temkin adsorption isotherm; Binding energy; Zirconium BDC metal organic framework Full paper is available at www.springerlink.com. DOI: 10.1007/s11696-026-04793-7
Chemical Papers 80 (6) 6685–6698 (2026) |
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