Methylene Blue Removal by Chitosan Cross-Linked Zeolite from Aqueous Solution and Other Ion Effects: Isotherm, Kinetic, and Desorption Studies

Table 2

Element data and specific surface area of ZLCH-a and ZLCH-b.

Parameters (wt%)	ZLCH-a	ZLCH-b
Carbon (C)	2.60	3.11
Oxygen (O)	49.15	45.37
Sodium (Na)	4.11	12.69
Aluminium (Al)	9.08	7.99
Silica (Si)	35.07	30.84
Specific surface area (SSA) (m^2/g)	5.98	1.08