Possibility of Removing Pb and Cd from Polluted Water by Modified Fly Ash

Table 3

Comparison of previously reported Cd²⁺ and Pb²⁺ adsorption capacities of different adsorbents.

Adsorbent	Qm (mg/g)		Reference
	Cd^2+	Pb^2+
Ca-alginate bead	1.26	1.74	[2]
Camellia seed husk biochar	45.6	113.2	[3]
Modified orange peel	13.7	73.5	[5]
Chitosan-MAA material	1.84	11.3	[7]
Modified fly ash	3.6	10.8	[10]
IP4	78.74	115.5	This study