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The research aims to evaluate the effectiveness of a TiO2 photocatalytic reactor under natural sunlight for treating agricultural runoff.

February 14, 2026SustainabilityOpen Access

Harnessing Natural Sunlight for Solar-Driven Photocatalysis in Sustainable Agricultural Runoff Remediation

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Field evaluation demonstrates improved photocatalytic efficiency in agricultural runoff, suggesting sustainability in treatment processes.

The research aims to evaluate the effectiveness of a TiO2 photocatalytic reactor under natural sunlight for treating agricultural runoff.
Used a 5 L recirculating CPC slurry reactor for treatment.
Conducted field analytical models on three model agro-pollutants.
Analyzed kinetics based on cumulative UVA dose and water-matrix effects.
Tested reusability of the catalyst over five cycles.
Achieved a 20-35% reduction in removal efficiency with natural river water compared to synthetic runoff.
Demonstrated a reduction in variability of rate constants with adaptive strategies.
Improved operational throughput by 25-35% with adaptive UVA dose control.
Catalyst displayed only an 18% loss of activity after five uses, with some recovery.

Oni et al. (2026) studied this question.

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Field evaluation demonstrates improved photocatalytic efficiency in agricultural runoff, suggesting sustainability in treatment processes.