Iron-manganese modified biochar (FMBC) was synthesized from rice husk via a microwave-assisted low-temperature oxidation method for the simultaneous removal of Cd(II) and As(III) from aqueous solutions. Compared with the conventional oil-bath method, the microwave-assisted synthesis endowed FMBC with a more developed porous structure (38 % increase in pore volume and 45 % enlargement in average pore diameter) and richer surface functional groups (-OH, -COOH, Fe-OH, Mn-O), significantly enhancing its adsorption performance. The adsorption of C...
