Removal of Fluorescein Dye from Aqueous Solutions Using Natural and Chemically Treated Pine Sawdust

Table 4

Thermodynamic parameters for the FD removal by NPS and SPS.

Adsorbent	Parameter
	T (K)	∆G° (kJ/mol)	∆H° (kJ/mol)	∆S° (kJ/mol K)
NPS	298	−5.139	−40.677	−0.119
	313	−3.252
	323	−2.010
	333	−0.992
	SPS	298			−6.382	−49.583	−0.145
313		−4.283
323		−2.571
333		−1.396