Table 2. Adsorption Data of Photoactive Cationic Cellulose Derivatives (PCCDs) Treated with Langmuir and Freundlich Equations^a.

adsorption model
	Langmuir			Freundlich
derivative	ns	KL	R2	R2	n	1/n	A
PCCD-1b	36.76	0.007	0.8980	0.9606	2.86	0.35	3.0
PCCD-2b	30.30	0.011	0.9478	0.9915	2.56	0.39	2.4

^aReprinted from ref (42) with permission from Elsevier.

^bThe DS (degree of substitution) of the cationic group is 0.34, and the DS values of the photoactive group are 0.11 and 0.37 for PCCD-1 and PCCD-2, respectively.