A novel adsorbent was prepared by immobilizing titanium onto collagen fiber (TICF)

and its adsorption to uranium in wastewater containing fluorine and uranium was investigated in detail.It was found that TICF has high adsorption capacity to UO2+2 and the adsorption capacity is 0.62 mmol U·g-1 at 303 K and pH 5.0 when the initial concentration of UO2+2 is 1.50 mmol·L-1.The adsorption isotherms can be described by the Langmuir equation and the adsorption capacity increases with temperature.The effect of co-existed F- on the adsorption capacity of UO2+2 on TICF is significant

but this effect can be eliminated by adding aluminium nitrate as masking agent.Other co-existed ions

including Cl-

NO-3

Ca2+

Mg2+

in the solution

have no effect on the adsorption capacity of UO2+2 on TICF

while the co-existed Cu2+ has a certain effect.The saturated TICF can be regenerated by using 0.2 mol·L-1胶原纤维；钛FONT-FAMILY: Calibri

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mso-bidi-language: AR-SA">；吸附；氟铀废水