Metal organic framework anchored onto biowaste mediated carbon material (rGO) for remediation of chromium (VI) by the photocatalytic process.

Autor: Sathish S; Department of Chemical Engineering, Sathyabama Institute of Science and Techology, Chennai, Tamilnadu, India, 600119. Electronic address: sathish.chemical@sathyabama.ac.in., Kumar K S; Department of Chemical Engineering, Sathyabama Institute of Science and Techology, Chennai, Tamilnadu, India, 600119., U S; Department of Chemical Engineering, Sathyabama Institute of Science and Techology, Chennai, Tamilnadu, India, 600119., Prabu D; Department of Chemical Engineering, Sathyabama Institute of Science and Techology, Chennai, Tamilnadu, India, 600119., Karthikeyan M; Department of Chemical Engineering, Sathyabama Institute of Science and Techology, Chennai, Tamilnadu, India, 600119., D V; Department of Chemical Engineering, Sathyabama Institute of Science and Techology, Chennai, Tamilnadu, India, 600119., S S; Department of Chemistry, Sathyabama Institute of Science and Technology, Chennai, India., P A; Department of Chemistry, School of Basic Sciences, Vels Institute of Science and Technology, Chennai, India., Baigenzhenov O; Department of Metallurgical Engineering, Satbayev University, Almaty, Kazakhstan., Kumar JA; Department of Energy and Environmental Engineering, Saveetha School of Engineering, SIMATS, Saveetha University, Chennai, 602105, Tamilnadu, India. Electronic address: arvindhjsbu@gmail.com.
Jazyk: angličtina
Zdroj: Chemosphere [Chemosphere] 2024 Jun; Vol. 357, pp. 141963. Date of Electronic Publication: 2024 Apr 11.
DOI: 10.1016/j.chemosphere.2024.141963
Abstrakt: Groundwater contaminated with hexavalent chromium Cr(VI) causes serious health concerns for the ecosystem. In this study, a hybrid amino functionalized MOF@rGO nanocatalyst was produced by utilization of a biowaste mediated carbon material (reduced graphene oxide; rGO) and its surface was modified by in situ synthesis of a nanocrystalline, mixed ligand octahedral MOF containing iron metal and NH 2 functional groups and the prepared composite was investigated for Cr (VI) removal. The photocatalytic degradation of Cr(VI) in aqueous solutions was carried out under UV irradiation. Using a batch mode system, the effect of numerous control variables was examined, and the process design and optimization were carried out by response surface methodology (RSM). The photocatalyst, NH 2 -MIL(53)-Fe@rGO, was intended to be a stable and highly effective nanocatalyst throughout the recycling tests. XRD, SEM, EDS, FTIR examinations were exploited to discover more about surface carbon embedded with MOF. 2 g/L of NH 2 -MIL-53(Fe)/rGO was utilized in degrading 200 mg/L of Cr(VI) in just 100 min, implying the selective efficacy of such a MOF-rGO nanocatalyst. Moreover, the E g determinations well agreed with the predicted range of 2.7 eV, confirming its possibility to be exploited underneath visible light, via the Tauc plot. Thus, MOF anchored onto biowaste derived rGO photo-catalyst was successfully implemented in chromium degradation.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
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Databáze: MEDLINE
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