Table 3.

EDX elemental analysis of bentonite clay, date pit, and chitosan nanoparticles (Cs-NP)

Adsorbents	Element	Weight %
Bentonite clay	O	62.9
	Na	3.85
	Mg	2.31
	Al	10.22
	Si	28.05
	K	0.47
	Ca	3.20
	Fe	3.06
Date pit	C	56.13
	N	0
	O	40.42
	Al	2.83
	S	0.17
	K	0.45
Cs-NP	C	31.53
	N	8.07
	O	53.55
	Al	0.74
	P	6.11