Adsorptive Removal of Alizarin Red S onto Sulfuric Acid-Modified Avocado Seeds: Kinetics, Equilibrium, and Thermodynamic Studies

Table 1

EDS spectra of ARS dye for before and after adsorption.

Elements	The weight percentage of CTASP
	Before adsorption	After adsorption
Carbon (C)	58.2	56.2
Oxygen (O)	37.9	39.5
Aluminium (Al)	0.8	1.0
Silicon (Si)	0.2	0.3
Molybdenum(Mo)	2.2	1.7
Sulfur (S)	0.8	0.8
Iron (Fe)	—	0.4