Coexistence and Adsorption Properties of Heavy Metals by Polypropylene Microplastics

Table 1

Fitting parameters of adsorption kinetics of heavy metals by microplastics.

Absorbate	First-order kinetic			Second order dynamic			Intraparticle diffusion
	A	B	C
	Pb	0.0885	395.62	0.7790	0.0063	396.83	0.9995	0.7896	0.7235	0.9277
Cd	0.0606	203.32	0.8650	0.0419	205.34	0.9994	0.7641	0.3798	0.1109
Cu	0.0656	271.99	0.9934	0.0824	271.00	0.9998	0.3889	0.9819	1.0000
Zn	0.0677	193.72	0.8638	0.0320	178.89	0.9983	0.8645	0.8742	0.1341