Synthesis and Characterization of Different Crystalline Calcium Silicate Hydrate: Application for the Removal of Aflatoxin B1 from Aqueous Solution

Table 3

Kinetic parameters for AFB1 adsorption onto ACSH and CCSH at different temperatures.

Kinetic models	𝑇 (K)	ACSH			CCSH
Pseudo-first-order		𝑘1 (min^−1)	𝑞𝑒 (µg g^−1)	𝑅^2	𝑘1 (min^−1)	𝑞𝑒 (µg g^−1)	𝑅^2
	301	0.034	35.719	0.886	0.037	492.947	0.899
	306	0.035	27.283	0.879	0.041	541.502	0.890
	311	0.025	26.528	0.893	0.046	549.035	0.866
Pseudo-second-order		𝑘2 (g µg^−1 min^−1)	𝑞𝑒 (µg g^−1)	𝑅^2	𝑘2 (g µg^−1 min^−1)	𝑞𝑒 (µg g^−1)	𝑅^2
	301	0.0038	285.714	0.999	0.00017	981.448	0.998
	306	0.0056	277.778	0.999	0.00018	977.279	0.998
	311	0.0043	277.767	0.999	0.00021	966.428	0.998
Intraparticle diffusion		𝑘3 (µg g^−1 min^−1/2)	𝑏	𝑅^2	𝑘3 (µg g^−1 min^−1/2)	𝑏	𝑅^2
	301	6.317	230.76	0.684	53.534	440.40	0.991
	306	5.070	239.59	0.628	52.870	450.65	0.994
	311	4.877	236.10	0.808	51.435	469.11	0.999