Synthesis of α-MnO₂ Nanomaterial from a Precursor γ-MnO₂: Characterization and Comparative Adsorption of Pb(II) and Fe(III)

Table 1

BET and BJH analysis results of -MnO₂ and α-MnO₂.

Material	BET surface area	BJH adsorption pore size	BJH desorption pore size
-MnO2	65.00 m^2g^−1	417.83 Å	340.23 Å
-MnO2	9.37 m^2g^−1	162.95 Å	734.37 Å