Valorization of Toxic Weed Lantana camara L. Biomass for Adsorptive Removal of Lead

Table 4

Comparison between adsorption capacities of several adsorbents, obtained from natural organic materials, for Pb(II) ions.

	Adsorption capacity	Optimum pH	Equilibrium time	Reference
	(mg·g^−1)		(min)
	Cashew nut shell AC		28.9		6.0–6.5	30	[17]
Hazelnut husk AC	13.05	5.7	60	[18]
Coconut shell AC	26.5	4.5	35	[19]
Apricot Stone AC	22.85	4	300	[20]
Van apple pulp AC	15.96	5	50	[21]
Polygonum orientale AC	98.39	5	30	[22]
Pine cone AC	27.53	5	60	[23]
Cow bone AC	32.1	4	360	[24]
Dehydrated hazelnut husks carbon	133.3	4.5	60	[25]
Hazelnut husks AC	109.9	5	1200	[26]
ACL	48.1	5.0–6.0	180	This study
ACS	37.6	5.0–6.0	180	This study

AC = activated carbon.