Biochar-Enhanced Catalyst Achieves High Efficiency in Pesticide Degradation
The CoMn0.75/BC catalyst demonstrates a 96.9% imidacloprid removal efficiency in 40 minutes, marking a significant advancement in water treatment. This technology addresses the ecological risks posed by neonicotinoids, showcasing the potential for scalable solutions in wastewater management.
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The CoMn0.75/BC catalyst, developed from biochar and cobalt-manganese spinel, achieves a 96.9% reduction of imidacloprid within 40 minutes at 5 mg/L concentration. Its non-radical oxidation pathway utilizes high-valent metal-oxo intermediates and singlet oxygen, ensuring effective pesticide degradation across a pH range of 3 to 11 while resisting interference from common anions.
The catalyst demonstrates over 91% activity retention after five cycles and maintains over 80% imidacloprid removal in continuous-flow simulations for seven hours. Its broad applicability extends to other neonicotinoids, highlighting its potential for industrial wastewater treatment. Further research is required for pilot-scale validations and cost assessments for real-world implementation.
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