New insights into Th(IV) speciation on sepiolite: Evidence for EXAFS and modeling investigation

Novel synthesis of a clay supported amorphous aluminum nanocomposite and its application in removal of hexavalent chromium from aqueous solutions

“…A vibrational absorption peak of O-H was at 1632 cm À1 , which reected crystal water in the bentonite lattice. [34][35][36][37][38] FT-IR data for B-Al-Cr precipitate gives a new absorption peak in 515-550 cm À1 region (525 cm À1 ) which corresponds to Cr 2 O 4…”

Decontamination of Sr(II) on Magnetic Polyaniline/Graphene Oxide Composites: Evidence from Experimental, Spectroscopic, and Modeling Investigation

“…More details concerning the pseudo-first- and pseudo-second-order kinetic models were provided in the SI. As listed in Table S1, the uptake of Sr­(II) on magnetic PANI/GO composites was well-simulated by a pseudo-second-order-kinetic model with a high correlation coefficient ( R 2 > 0.9995) compared to that of the pseudo-first-order kinetic model ( R 2 < 0.95), indicating that Sr­(II) uptake by magnetic PANI/GO composites might be controlled by rate-limiting uptake. − …”

Preparation of porous carbon materials by polyphosphazene as precursor for sorption of U(VI)

“…In recent decades, multifarious physical and chemical means have been applied to dislodge U(VI) from wastewater [6][7][8], such as membrane separation [9][10][11], ion-exchange [12,13], co-precipitation [14][15][16], solvent extraction [17,18], sorption [19][20][21] and so on. These methods have various defects such as low efficiency and secondary pollution though they have some advantages and applicability.…”