Experimental q (mg g-1) Pseudo-first-order constants Pseudo-second-order constants   qe (mg g-1) k1 (x10-5min-1) R2 qe (mg g-1) k2 (x10-4g mg-1 min-1) R2 239.54 62.65 5.89 0.8645 244.5 5.51 0.9996

Table 1: Theoretically determined constants of the pseudo-first and the pseudosecond- order reaction kinetics based on the sorption of crystal violet from 25 mgL-1 solutions. pH 8.0, by 0.05g cross-linked OCMCTS during shake flask sorbent– sorbate contact at 30°C for 240 min.

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