. 2022 Mar 5;439:135613. doi: 10.1016/j.cej.2022.135613

Table 2.

Comparison of Q_m (μg/g) obtain from Langmuir model between the results of this work and others found in the literatures.

Metals	Types of plastics	pH	size	Temperature (℃)	Q_m (μg/g)	References
Pb(Ⅱ)	Pristine DFM	6.0	175 × 95 mm^a	25	265.63	This work
	Aged DFM	6.0	175 × 95 mm^a	25	384.16	This work
	Pristine PS	NM^b	0.1 μm	25 ± 2	160.00	[40]
	Aged PS	NM^b	0.1 μm	25 ± 2	202.00	[40]
	Pristine PVC	6.5	280 μm	25	2518 ± 125	[49]
	Beached PE	NM^b	NM^b	20 ± 1	0.72	[67]
	Pristine PE	6.5	∼ 4 mm	25	0.19	[68]
	Beached PE	6.5	∼ 4 mm	25	2.74	[68]
	Pristine PET	6.3	< 5 mm	NM^b	4930.00	[69]
	Pristine PP	6.3	< 5 mm	NM^b	5550.00	[69]
Cd(Ⅱ)	Pristine DFM	6.0	175 × 95 mm^a	25	79.75	This work
	Aged DFM	6.0	175 × 95 mm^a	25	105.32	This work
	Pristine PS	NM^b	0.1 μm	25 ± 2	105.00	[40]
	Aged PS	NM^b	0.1 μm	25 ± 2	175.00
	Pristine PS	4.0	NM^b	25	20.15	[70]
	Pristine PP	NM^b	74 μm	25	36.10	[71]
	Pristine PVC	6.5	280 μm	25	1748 ± 505	[49]
	Beached PE	NM^b	NM^b	20 ± 1	0.01	[67]
	Pristine PE	6.5	∼ 4 mm	25	0.01	[68]
	Beached PE	6.5	∼ 4 mm	25	0.25	[68]
	Pristine PET	6.0	75 μm	24 ± 1	250 ± 10	[27]
	Pristine PVC	6.5	280 μm	25	1748 ± 505	[49]
Sr(Ⅱ)	Pristine DFM	6.0	175 × 95 mm^a	25	58.54	This work
	Aged DFM	6.0	175 × 95 mm^a	25	64.34	This work
	Pristine PP	NM^b	100–150 mm	25	68 ± 12.6	[72]
	Pristine PET	NM^b	100–150 mm	25	360 ± 79.2	[29]
	Pristine PE	NM^b	100–150 mm	25	470 ± 106
	Pristine PVC	NM^b	100–150 mm	25	790 ± 238

Note: 175 × 95 mm^a (A whole DFM); NM^b (Not Mentioned); Abbreviations: PP (Polypropylene); PET (Polypropylene Terephthalate); PS (Polystyrene); PVC (Polyvinyl Chloride); PE (Polyethylene).