TY - JOUR T1 - Synthesis and Application of Calcined Magnetic Biochar Composite for the Enhanced Removal of AsIII and AsV from Aqueous Solutions JO - Journal of the Brazilian Chemical Society A1 - Hayat, Faisal A1 - Saad, Maryam A1 - Baig, Shams Ali A1 - Ullah, Imdad A1 - Godoi, Marcelo A1 - Cadaval Junior, Tito R. S. SN - 0103-5053 UL - 10.21577/0103-5053.20260100 VL - 37 Y1 - 2026 PB - Brasil ER -