Table 1.

Structural properties of the adsorbents.

Sorbents	MnO2 contenta (wt.%)	Mn(IV) contentb (wt.%)	SBET (m2 g−1)	Vpc (cm3 g−1)	dpd (nm)
BC	0.6	0.5	3.5	0.01	4.1
BC@MnO2-12.3	12.3	6.9	135.9	0.19	3.7
BC@MnO2-18.4	18.4	10.7	181.9	0.25	3.7
BC@MnO2-26.3	26.6	16.0	120.2	0.14	3.5
BC@MnO2-30.2	30.2	17.8	12.5	0.03	2.0

^aDetermined by X-ray fluorescence.

^bDetermined by using oxalic acid-permanganate back-titration method.

^cTotal pore volume, determined at P/P₀ = 0.97.

^dMost probable pore diameter, determined by BJH pore size distribution.