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This research explores the effectiveness of environmentally friendly nanocomposite catalysts for cleaning up polluted areas. The results of the characterization showed that nanocomposite A had particles that were 20 nm in size, a surface area of 50 m^2/g, and a pore volume of 0.1 cm^3/g. In contrast, nanocomposite E had particles that were 15 nm in size, a surface area of 45 m^2/g, and a greater pore volume of 0.08 cm^3/g. Evaluations of the effectiveness of the catalysts in removing pollutants showed that nanocomposite E was the most effective, with removal percentages of 95% for Pollutant A, 90% for Pollutant B, and 98% for Pollutant C. Analyses of the reaction kinetics showed that nanocomposite E had the best catalytic kinetics, with a rate constant of 0.08 min^-1 and a turnover frequency of 0.003 mol/g/min. As compared to other catalysts, nanocomposite C had the lowest cost per gram and the highest cost efficiency, making it the most cost-effective alternative. With nanocomposite E showing better efficiency in pollutant removal and catalytic kinetics, the results indicate that catalysts made of nanocomposite materials using green techniques might be used for long-term, effective environmental cleanup. Based on these findings, nanocomposite catalysts have great promise for promoting environmental sustainability and protection.