Table 2 - Effects of temperature on the sorption of Pb2+ and Cd2+ from aqueous solution by Caladium bicolor (Wild Cocoyam) biomass

Table 2. Thermodynamic Parameters for the adsorption of Pb²⁺ and Cd²⁺ on to the biomass of Caladium bicolor.

Temp (ºC)	Pb²⁺					Cd²⁺
Temp (ºC)	∆G^oKJ/gmol	E_aKJ/gmol	∆S^oJ/ gmol K	∆H^oJ/gmol	*S x 10^-4	∆G^oKJ/gmol	E_aKJ/gmol	∆S^oJ/ gmol K	∆H^oJ/gmol	*S x 10^-3
30	-8.13	-16.14	16.06	-9.54	3.86	-9.40	-7.80	7.92	-8.33	7.09
40	-8.07					-8.54
50	-7.66					-7.17
60	-6.57					-6.87
70	-5.14					-3.87
80	-2.62					-1.87

Supported by UNESCO / MIRCEN network

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