Efficient separation and recovery of Re(VII) from Re/U bearing acidic solutions using aminotriazole modified cellulose microsphere adsorbents

In this work, aminotriazole-modified microcrystalline cellulose microsphere (3-ATAR) containing an abundant nitrogen content as promising adsorbent was prepared via a radiation grafting method for the selective recovery ReO4- in presence of UO22+ acidic solution. A series batch and column adsorption experiments including monocomponent binary systems were designed evaluating separation performance Re(VII) onto 3-ATAR. The 3-ATAR exhibited good capacity (max 146.4 mg·g-1) rapid rate, with equilibrium time 45 min. solution, high selectivity coefficients (?Re/M) indicated that could separate recover from U(VI) other metal ions (Cu(II), Cr(III), Ni(II), Zn(II)). particular, it found Re almost unaffected U/Re-bearing solutions no matter how much changed. experiment, when concentration 40 times higher than Re(VII), manifested over synthetic uranium ore leachate. This work demonstrated provide efficient, selectively, sustainable, industrially feasible way to be recovered leachate prospective sources. Graphical abstract