Sorption of lanthanum and erbium from aqueous solution by activated carbon prepared from rice husk

Exploration of silver oxide nanoparticles as a pointer of lanthanum for environmental applications

“…6(a) shows the La(III) adsorption profile on Ag 2 O nanoparticles obtained from the experiment of adsorption isotherm. The adsorption capacity of Ag 2 O nanoparticles for La(III) was experimentally found to be 94.30 mg/g, which is comparable with those previously reported for La(III) in other approaches (2.30 [27], 5.35 [28], 28.65 [29], 120.00 [30], 154.70 [31], 167.08 [32] and 175.40 mg/g [4]). …”

“…Lanthanum is also used for the manufacture of specialized lenses because of special optical qualities in glass attained by lanthanum compounds. For the motion picture industry, lanthanum compounds containing fluorine or oxygen are used in making carbon arc lamps [4].…”

Low cost natural adsorbent for removal of Pb(II) ions from waste solutions

“…These observations are in close agreement with those reported in previous studies [22,[29][30][31][32][33]. The decrease in removal efficiency with increasing the initial concentration of Pb 2+ ions may be resulting from that increasing the ion concentration of metal ions with a fixed amount of sorbent give a limited available number of active sites thereby adsorbing almost the same amount of adsorbate, this result causes a decrease in the removal percentage of adsorbate corresponding to an increase in the initial ion concentration [34]. show that the equilibrium of Pb (II) ions reaches after 4 hours.…”

Mass transfer kinetics of lanthanum (III) extraction in the presence of two complexing agents by D2EHPA using a constant interfacial area cell with laminar flow

“…La (III) as a pure element or in association with other compounds has been widely applied in the super alloys, catalysts, special ceramics, and in organic synthesis (Awwad et al, 2010). La (III) is also used in many industries such as semi-conductor and ceramic industries (Cai et al, 2008;Triyoso et al, 2008) and the effluents emanating from these industries are often associated with high concentrations of lanthanum (Das et al, 2014).…”