da Silva, M. A., Iêda Aparecida Pastre, F. and Clóvis Augusto, R. (2026) “Acid-Activated Biochar From Pinus elliottii Pine Cone: Production, Characterization and High-Efficiency Adsorption of Methylene Blue ”, Scientific Insights. Hong Kong, 2(1), p. 001. doi: 10.64897/si.2026v2i1.001.