Factors Affecting on the Sorption/Desorption of Eu (III) using Activated Carbon

Competitive sorption of Cu(II) and Eu(III) ions on olive-cake carbon in aqueous solutions—a potentiometric study

“…Experimental data were obtained from potentiometric measurements in aqueous solutions containing 0.1 g L −1 olive-cake carbon loaded with Cu(II) ions at different Eu(III) ion concentration, 0.1 M NaClO 4 as background electrolyte and carried out at 25 ± 3 • C under normal atmospheric conditions corresponding affinities of olive cake and humic acid, indicating that similar active sites are responsible for the metal ion binding on the olive-cake carbon surface (Kolokassidou and Pashalidis 2006;Kolokassidou et al 2009;Konstantinou et al 2007Konstantinou et al , 2009). The relatively increased surface area (135 cm 2 g −1 ) and adsorption capacity of the olive cake carbon for Eu(III) ions (37 mg g −1 ), which is close to the corresponding value given in literature (Gad and Awwad 2007), suggests that olive cake carbon can be considered as a potential adsorbent for Cu(II)-and Eu(III)-ions in water treatment technologies. However, the almost similar chemical affinity of the olive cake carbon for both metal ions indicates that selective adsorption of the metal ions can't be possible.…”

Highly Selective Recovery of Lanthanides by Using a Layered Vanadate with Acid and Radiation Resistance

“…Generally,amaterial is considered as an excellent adsorbent if K d is over 10 4 mL g À1 .P articularly, K d Eu was up to 1.73 10 5 mL g À1 (99.43 %r emoval rate) at pH 2.6. Such high K d indicate that 1 has obviously higher affinity toward Eu 3+ than reported silica-phosphonic acid, [28] activated carbon [27] and ZSM-5 zeolite [13] (Supporting Information, Table S8).…”

“…According to the fitting results with the Langmuir adsorption model, the maximum adsorption capacities q m of 1 are 161.4 mg g À1 for Eu 3+ and 139.2 mg g À1 for Sm 3+ ,r espectively. q m Eu of 1 is significantly higher than most current adsorbents,s uch as Fe 3 O 4 @HA MNPs (10.6 mg g À1 ), [26] GO (115.5 mg g À1 ), [14] zeolite (2.4 mg g À1 ), [13] activated carbon (3.28-46.5 mg g À1 ), [27] and thiostannate (132.7 mg g À1 ) ( Figure 2d;S upporting Information, Table S8). [11] Thes trongly acidic high-level radioactive liquid wastes (HLLW) put forward higher request on the adsorbents for lanthanide ions.…”

Accumulation of Co(II) and Eu(III) by the mycelia of Aspergillus niger isolated from radionuclide-contaminated soils

“…6, the Langmuir model fit the experimental data better than Freundlich model. From Pseudomonas aeruginosa (Table 4) [43][44][45][46][47][48]. These results indicate that A. niger is able to be potentially used as a high efficient biomaterial in the radioactive wastewater treatment.…”