Journal of Chemistry / 2016 / Article / Tab 1

Research Article

Removal of Arsenite from Water by Ce-Al-Fe Trimetal Oxide Adsorbent: Kinetics, Isotherms, and Thermodynamics

Table 1

The kinetic parameters for the pseudo-first-order, pseudo-second-order, and intraparticle diffusion model at different initial As (III) concentrations and 25°C.

Kinetic modelsParameters (mg·L−1)
3810

Pseudo-first-order (mg·g−1)1.2253.2734.097
(h−1)0.0480.0380.031
(mg·g−1)0.9051.3001.440
0.9290.7670.810

Pseudo-second-order (g·mg−1·h−1)0.5030.1500.171
(mg·g−1)1.2693.3934.214
(mg·g−1·h−1)0.8101.7323.042
0.9990.9990.999

Intraparticle diffusion (mg·g−1·h1/2)0.5261.3322.088
0.0850.1980.358
0.9990.9990.999
(mg·g−1·h1/2)0.3300.8110.829
0.2280.5801.391
0.8850.9480.969
(mg·g−1·h1/2)0.0360.1090.112
0.9922.3463.356
0.8820.9360.881

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