Removal of Cd (II) from Aqueous Media by Adsorption onto Chemically and Thermally Treated Rice Husk

Table 4

Specific surface area, adsorption capacity, and percentage of Cd (II) adsorption onto adsorbent materials.

Material	Adsorption	Adsorption	Specific surface area
	Capacity (mg/g)	Percentage (%)	BET (m^2/g)
RHw	7.44	31	13
RHc	17.45	75	4
RHc300	28.27	95	14
RHc500	2.03	5	7
RHc700	2.03	8	6