Table 1.

Pseudo-second-order rate constant (K₂) and Qe of the synthesized materials.

Sample	K2/(g mg−1 min−1)	Qe/(mg g−1)
M0	0.82	21.7
M16	0.58	21.9
M28	0.65	18.5
M43	0.63	20.4
COF powder	0.90	18.1