Sorption properties of carbamoylmethylphosphonated-based polymer combining both sorption and thermosensitive properties: New valuable hydrosoluble materials for rare earth elements sorption

Synthesis of polyaminophosphonic acid-functionalized poly(glycidyl methacrylate) for the efficient sorption of La(III) and Y(III)

“…The pH is expected to influence both (a) the speciation of metal ions, by formation of hydrolyzed species (including unfavorable precipitation), or specific complexes in the presence of ligands, and (b) the surface properties of the sorbents, by protonation and deprotonation of reactive groups [13,16]. The presences of phosphonic acid and amine groups induce various proton exchange reactions; however, their affinity for metal ions is modulated by the pH of the solution [13,16,18]. Fig.…”

“…In chelating resins, the functional group atoms that are most frequently used consist of nitrogen (i.e., N present in amines, azo groups, amides, nitriles), oxygen (i.e., O present in carboxylic, hydroxyl, phenolic, ether, carbonyl), phosphoryl groups (i.e., P present in PeO or P]O groups), and sulfur (i.e., S present in thiols, thiocarbamates, thioethers). Usually, the anchored molecules contain nitrogen, oxygen or sulfur atoms, or a combination of them, acting as the basic centers that complex cations and allow selective extraction [14][15][16][17][18][19]. The α-aminophosphonate-based compounds are among the most useful organophosphorus derivatives; they have attracted increasing attention because of their biological properties and potential applications in pharmacological and agrochemical fields [20,21].…”

A Facile One-Pot Strategy to Functionalize Graphene Oxide with Poly(amino-phosphonic Acid) Derived from Wasted Acrylic Fibers for Effective Gd(III) Capture

“…Table 2 provides the results of comparative study of PAMGO-3 with other adsorbents for Gd(III) removal from an aqueous solution. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15]17,18 Gratifyingly, it can be found that the PAMGO-3 is a good candidate as an adsorbent with the second highest Gd(III) adsorption capacity, which is probably attributed to the large specific surface area, the abundant PAPA functional groups on PAMGO-3, and excellent surface complexation between PAGMO-3 and Gd(IIII) ion during the sorption process. Although the GO/CNt shows a slightly higher Gd(III) uptake, its separation requires a dialysis bag, and the special and more complex procedures for the Gd(III) adsorption in these systems may hinder their practical application.…”

“…It is worth mentioning that, compared with other reported Gd(III) adsorbents, 3,4,17,18,22 this work shows significant merits as follows:…”

“…Therefore, it is significant to develop desired functional groups for the modification of MGO-based materials, which can guarantee both good separation and adsorption performance. Amino-phosphonic acid (APA) compounds containing both amino and phosphonic acid groups have shown great potential in the field of REM ions, 17,18,21,22 partly as a result of their excellent modification abilities, 23,24 and partly because they can serve as effective chelating ligands for REM ions. 25,26 For instance, Galhoum et al decorated adsorbent with polyaminophosphonic acid and applied to absorb La 3+ and Y 3+ .…”