Optimized one-step pyrolysis synthesis of zinc-modified sludge biochar for enhanced perfluorooctane sulfonate removal from water

Key Points

• Enhanced zinc-modified biochar shows superior perfluorooctane sulfonate removal from water, achieving a significant reduction in contamination levels.
• The maximum PFOS uptake capacity recorded is approximately 100 mg/g, demonstrating effective adsorption potential.
• Analyses involved one-step pyrolysis synthesis of biochar, applying varying zinc concentrations to optimize adsorption capabilities.
• The findings suggest this treatment could be a novel approach to manage PFOS pollution in water sources, though real-world applications need evaluation.