Adsorption Studies of Textile Dye (Chrysoidine) from Aqueous Solutions Using Activated Sawdust

Table 1

Thermodynamic parameters at different temperatures.

Temperature (°C)	Raw sawdust				Chemically treated sawdust
	(−)	(kJ/mol)	(kJ/mol)	(J/mol-K)	(−)	(kJ/mol)	(kJ/mol)	(J/mol-K)
30	2.85	−2.64	−39.22	−120.40	10.11	−5.83	−47.03	−135.15
40	1.94	−1.73			7.33	−5.19
50	1.08	−0.22			3.17	−3.10