Removal of Reactive Anionic Dyes from Binary Solutions by Adsorption onto Quaternized Kenaf Core Fiber

Table 5

Parameters and correlation coefficient () for pseudo-first-order and pseudo-second-order kinetic models for adsorption RB-5 and RR-RB by QKCF in binary system.

Dye in binary system	Initial dye concentration (mg/L)	(mg/g)	Pseudo-first-order kinetic model			Pseudo-second-order kinetic model
						cal.
RB-5	20	19.5	1.83	0.01612	0.91	19.6	0.023	0.9999
	40	39.3	3.57	0.028	0.9384	39.68	0.0157	1
	60	59.5	3.02	0.024	0.8213	59.88	0.0133	0.9999
	80	79.54	15.22	0.037	0.957	80.6	0.0055	1
	100	99.6	23.56	0.037	0.9812	101	0.0035	0.9999
RR-RB	20	17.93	1.1	0.032	0.959	18.02	0.081	1
	40	38.1	1.68	0.017	0.833	38.3	0.025	1
	60	57.88	1.71	0.0196	0.711	58.14	0.0189	1
	80	77.73	8.1	0.0341	0.928	78.7	0.0084	1
	100	97.5	9.22	0.0272	0.901	99	0.0055	1