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ARS Home » Northeast Area » Wyndmoor, Pennsylvania » Eastern Regional Research Center » Sustainable Biofuels and Co-products Research » Research » Publications at this Location » Publication #414229
Research Project: Chemical Conversion of Biomass into High Value Products

Location: Sustainable Biofuels and Co-products Research

Title: Enhanced dye degradation using MIL-53(Fe)-modified kraft lignin as a heterogeneous Fenton catalyst

Author
item SUT, NAYANA - Nowgong College
item BHUYAN, PRIYANGA - Nowgong College
item HAZARIKA, SWAPNALI - Council Of Scientific And Industrial Research (CSIR)
item Sharma, Brajendra - Bk
item KIM, JAEMIN - University Of Illinois
item GOGOI, PARIKSHIT - University Of Illinois

Submitted to: CHEMICAL PHYSICS
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 10/10/2024
Publication Date: 10/14/2024
Citation: Sut, N., Bhuyan, P.M., Hazarika, S., Sharma, B.K., Kim, J., Gogoi, P. 2024. Enhanced dye degradation using MIL-53(Fe)-modified kraft lignin as a heterogeneous Fenton catalyst. Chemical Physics. 588:112492. https://doi.org/10.1016/j.chemphys.2024.112492.
DOI: https://doi.org/10.1016/j.chemphys.2024.112492

Interpretive Summary: Organic pollutants often are harmful and highly toxic to humans, they often exhibit harmful health effects including the potential to cause cancer, even at minimal levels. Therefore, their destruction has emerged as an urgent need due to their environmental issues. These organic pollutants can be degraded by developing efficient catalysts that are both cost-effective and eco-friendly. Advanced oxidation processes are highly effective techniques for addressing water pollution. It has been shown in the present work that the incorporation of biomass-derived modified kraft lignin in a metal-organic framework catalyst has shown significant degradation efficiency compared to an unmodified one. This approach could be used for the destruction of other organic pollutants, like pesticides, herbicides, forever chemicals, pharmaceutical and personal care products, etc. to treat wastewater generated in rural areas and agricultural run-off.

Technical Abstract: MIL-53(Fe), a metal-organic framework (MOF), is known to be an eco-friendly material that can degrade harmful organic pollutants, but it has comparatively lower catalytic efficiency. To improve the degradation performance of MIL-53(Fe), we incorporated the modified kraft lignin (MKL) into pristine MIL-53(Fe), where the MKL was prepared through phosphoric acid treatment. The MIL-53(Fe)-MKL composite showed a significant degradation improvement, achieving a removal efficiency of 97% for methylene blue within 50 minutes without light irradiation, compared to pristine MIL-53(Fe). The incorporated MKL facilitates the redox cyclization process, promoting the regeneration of Fe2+ from Fe3+ and the destruction of methylene blue to CO2 and H2O. The MIL-53(Fe)-MKL composite has been reused at least five cyclical runs without a significant decrease in its activity.