Open access
Sep 2026
Methylene Blue Adsorption by Standard Rice Husk Biochars: Evaluation of Process Variables Through Experimental Design
Rice husk-derived biochars produced at 550 °C and 700 °C were evaluated for methylene blue adsorption from aqueous solutions using a full factorial experimental design. The effects of pH (7–9), initial dye concentration (25–75 mg L−1), and adsorbent mass (0.05–0.15 g) and their interactions were systematically analyzed...
L. D. de Araujo, T. T. Silva, J. T. Marumo et al.
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