High-potential use of l-Cysh modified bentonite for efficient removal of U(VI) from aqueous solution

In this work, a brand new organic superficial active sorbent l -Cysteine hydrochloride modified bentonite (LCMB) has been developed and proposed for treatment of contaminated water containing uranium. Correlation between different factors such as pH, contact time, temperature, initial concentration of U(VI) and efficiency of LCMB for uranium absorption are discussed. At uranium content in water from 25 to 250 mg L −1 , the sorption capacity for LCMB reached 208.3 mg g −1 that is essentially higher in comparison with other sorbents and notably improved from 77 mg g −1 after modification.