Synthesis, Characterization, and Application of Co-Al-Zn Layered Double Hydroxide/Hydrochar Composite for Simultaneous Removal of Cationic and Anionic Dyes

Table 2

Porosity data of various materials as obtained through nitrogen adsorption porosimetry.

Sample name	Surface area (m^2g^−1)	Pore diameter (nm)	Pore volume (ccg^−1)
LDH	19.385	4.325	0.044
C-1	46.986	3.405	0.133
C-2	2.622	7.790	0.010
C-3	2.847	3.053	0.007
C-4	0.043	3.053	0.000
HC	3.874	3.426	0.008