Preparation and Characterization of Chitosan/Bentonite Composites for Cr (VI) Removal from Aqueous Solutions

Table 1

Factors and values of Box-Behnken design.

		Temperature (K)	Adsorbent dose (mg/L)	pH
	-1	288	200	2.5
	0	298	400	3
	1	308	600	3.5