Metal organic framework anchored onto biowaste mediated carbon material (rGO) for remediation of chromium (VI) by the photocatalytic process
Sathish S. Kumar.K S. U S. Prabu D. Karthikeyan M. D V. S S. P A. Baigenzhenov O. Kumar J.A.
June 2024Elsevier Ltd
Chemosphere
2024#357
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 NH2 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, NH2-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 NH2-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 Eg 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.
Biowaste , Carbon surface , Solvo-thermal , Sustainable development , Synthesis , Treatment
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Department of Chemical Engineering, Sathyabama Institute of Science and Techology, Tamilnadu, Chennai, 600119, India
Department of Chemistry, Sathyabama Institute of Science and Technology, Chennai, India
Department of Chemistry, School of Basic Sciences, Vels Institute of Science and Technology, Chennai, India
Department of Metallurgical Engineering, Satbayev University, Almaty, Kazakhstan
Department of Energy and Environmental Engineering, Saveetha School of Engineering, SIMATS, Saveetha University, Tamilnadu, Chennai, 602105, India
Department of Chemical Engineering
Department of Chemistry
Department of Chemistry
Department of Metallurgical Engineering
Department of Energy and Environmental Engineering
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