@article{hayat_saad_baig_ullah_godoi_cadaval junior_2026,  title={Synthesis and Application of Calcined Magnetic Biochar Composite for the Enhanced Removal of As<sup>III</sup> and As<sup>V</sup> from Aqueous Solutions},  volume={37},  ISSN={0103-5053},  url={https://doi.org/10.21577/0103-5053.20260100},  DOI={10.21577/0103-5053.20260100},  journal={Journal of the Brazilian Chemical Society},  publisher={Sociedade Brasileira de Química},  author={Hayat, Faisal and Saad, Maryam and Baig, Shams Ali and Ullah, Imdad and Godoi, Marcelo and Cadaval Junior, Tito R. S.},  year={2026},  pages={e–20260100} }