Initial and final concentration of lead in the solution after 6, 12 and 24 h contact with synthesized nanoparticles in the presence of 1.5%, 3% and 5% of CTAB.

Sample	CTAB%	Initial concentration of Pb in solution (mg L−1)	Pb concentration in solution after 6 h (mg L−1)	Pb concentration in solution after 12 h (mg L−1)	Pb concentration in solution after 24 h (mg L−1)
C2	1.5	100	63	59.8	60.6
C3	3	100	60	57.3	49.9
C4	5	100	71.6	71	68.8