Adsorption of Uranium(VI) from Aqueous Solution by Modified Rice Stem

Table 1

Effect of modified materials on adsorption of uranium(VI).

Modified methods	Removal rate (%)	Adsorption capacity (mg/g)
—	76.11	1.52
0.25 mol/L NaOH	92.00	1.84
0.5 mol/L NaOH	94.55	1.89
1 mol/L NaOH	93.84	1.88
1.5 mol/L NaOH	87.68	1.75
HCl	89.46	1.79
H2O2	92.74	1.85
Ammonium hydroxide	91.98	1.84
Citric acid	79.09	1.58