A Novel Absorbent of Nano-Fe Loaded Biomass Char and Its Enhanced Adsorption Capacity for Phosphate in Water

Table 2

Liquid film diffusion model and Intraparticle diffusion constants for phosphate.

Samples	𝑄𝑒,exp (mg/g)	liquid film diffusion model				Intraparticle diffusion model
		𝑄𝑒,cal (mg/g)	𝑅 (min^−1)	𝑅^2	S.D. (%)	𝐶	𝐾3 (mg/gmin^1/2)	𝑅^2	S.D. (%)
C	3.58	3.34	0.508	0.905	16.22	1.70	0.271	0.770	25.52
BC-Fe	11.94	10.58	0.135	0.813	32.30	2.93	1.025	0.975	20.56