Adsorption of uranium (VI) by metal-organic frameworks and covalent-organic frameworks from water

Fe3S4 nanoparticles wrapped in a g-C3N4 matrix: an outstanding visible active Fenton catalysis and electrochemical sensing platform for lead and uranyl ions

“…The decrease in the electron density around sulfur centers was corroborated by the charge transfer from sulfide to hexavalent uranium. 56,57 Moreover, in the N1s scan after the adsorption of uranyl ions (shown in Fig. S6b, ESI †), the peaks were slightly shifted to higher values, indicating the involvement of nitrogen centers in the reduction and adsorption of uranium ions.…”

Facile synthesis and characterization of magnesium and manganese mixed oxides for the efficient removal of tartrazine dye from aqueous media

“…[7][8][9][10][11][12][13][14][15] However, adsorption is the most important method for removing non-degradable and persistent pollutants from wastewater because it is more economically and ecologically advantageous than other methods. [16][17][18][19][20][21][22] Nanomaterials had attracted considerable interest in the area of adsorption because of their unique characteristics of small size, enhanced porosity, and increased surface area. [23][24][25][26][27][28][29][30][31][32] The Pechini sol-gel method is preferable to other methods used to prepare metal oxide nanoparticles.…”

Adsorption of Low-Concentrated U(VI) on a Preferable Crystalline Boehmite (γ-AlOOH) in Alkaline Conditions

“…At 6.5 < pH < 14, U­(VI) was hydrolyzed to form the hydroxylated uranyl hydrate . However, there still exists low concentration of U­(VI) in the solution with different substances such as U­(VI)­O 2 (OH) 3 – and U­(VI)­O 2 (OH) 4 2– at high pH (≥12) …”