Adsorption Batch Studies on the Removal of Pb(II) Using Maize Tassel Based Activated Carbon

Table 3

Performance of activated carbons from various precursors for adsorption of Pb(II) from aqueous solutions.

Precursor	Activation	Conditions: pH; agitation time	Maximum adsorbent (mg/g)	Reference
Hazelnut husks	Chemical activation by ZnCl2	6.7; 60 min	13.05	[18]
Coffee residue	Chemical activation by ZnCl2	5.8; 2 h	63	[23]
Rice husk	Chemical activation by H3PO4	—	138.89	[27]
Coconut shell	Chemical activation by H2SO4	4.5; 2 h	26.50	[35]
Tamarind wood	Chemical activation by ZnCl2	6.5; 50 min	43.85	[45]
Tamarind wood	Chemical activation by H2SO4	6.5; 40 min	134.22	[45]
Cashew nut shell	Chemical activation by H2SO4	5.0; 30 min	408.6	[46]
Sugarcane bagasse	Chemical activation by H2SO4	5; not given	7.297	[47]
Maize tassel	Chemical activation by H2SO4	5.4; 60 min	37.31	This study