Adsorption of Chromium Ions from Aqueous Solutions by Synthesized Nanoparticles

Table 3

Constants of isotherm and kinetics studies for TiO₂.

		Concentration			Temperature
Models	Parameters	50 ppm	100 ppm	150 ppm	30°C	40°C	50°C
Freundlich isotherm		0.9563	0.0566	0.9663	1	0.9162	0.9993
		0.3752	3.7858	50.72	0.0217	0.0313	0.0214
		5.4905	4.7058	292.63	0.0054	0.1223	0.028
Langmuir isotherm		0.9999	1	0.9999	0.8782	0.8687	0.8733
Temkin isotherm		0.9673	0.9291	0.9426	0.9909	0.9895	0.9894
		52.57	72.922	140.92	96.505	92.575	98.766
		12.807	12.044	24.11	31.258	30.405	31.867