Preparation and Kinetic Studies of Cross-Linked Chitosan Beads Using Dual Crosslinkers of Tripolyphosphate and Epichlorohydrin for Adsorption of Methyl Orange

Figure 3

Effect of TPP concentration at conditions of 12 h immersing time and ECH 5% (v/v) (a), immersing time of chitosan in TPP solution at conditions of TPP 10% (w/v) and ECH 5% (v/v) (b), and concentration of ECH at conditions of 12 h immersing time in TPP 10% (w/v) (c) for the preparation of the cross-linked chitosan beads. Sample: 50 mL methyl orange 20 ppm; cross-linked chitosan beads mass: 0.02 g; stirring rate = 100 rpm; pH 4.

(a)

(b)

(c)