Table 2. Kinetic Model Parameters of Pb²⁺ Adsorption on MSiO₂-GO Nanosheets.

parameters	pseudo-first-order	pseudo-second-order
slope (m)	–0.037	0.009
K	0.436	0.001
intercept (c)	1.859	0.062
qe (mg g–1)	72.27	111.12
R2	0.982	0.983