Removal of heavy metal ions from water by using poly(ethyleneglycol dimethacrylate-co-acrylamide) beads

Adsorption and desorption properties of the chelating membranes prepared from the PE films

“…where C eq is the free Cu 2ϩ ion concentration in the surrounding solution at equilibrium; Q, the maximum [33][34][35][36] This result indicates that Cu 2ϩ ions are bonded to IDA groups in the 1:1 stoichiometry through the chelating mechanism. The adsorption of Cu 2ϩ ions on the IDA-(PE-g-PGMA) films was assumed to proceed like a first-order-reaction.…”

Adsorptive removal of technetium‐99 using macroporous poly(GMA‐co‐EGDMA) modified with diethylene triamine

“…TcO 4 À can be strongly sorbed on activated carbon, 4,7,8 various synthetic resins and sponges, [9][10][11][12] elemental iron, 13 strongly magnetic iron sulfide material, 6 organic polymers, 14 chitin, and chitosan. 15 The acrylic-based resins are almost ideal for the removal of toxic pollutants like Cu, Co, Ni, Zn, and Cd 16,17 as well as Pb and Hg, 18,19 because they are very stable in a range of buffers from pH 1.0 to 11.0 and resistant to microbial degradation. 20 Macroporous crosslinked copolymers based on GMA are of great interest due to their chemical and structural versatility, owing to the presence of epoxy groups (EG) that can rapidly react with various reagents and be easily transformed into iminodiacetate, thiol, azole, pyrazole groups, etc.…”

“…22 Functionalization of these copolymers with amines yields specific sorbents with high capacity, fast kinetics, and good selectivity for many metal ions as well as good chemical and mechanical stability. 17,18,23,24 The advantage of amino-functionalized macroporous crosslinked poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) (PGME) over the conventional ion exchange resins lies in the fact that depending on pH, they can both coordinate heavy and precious metals and bind them as chloro complexes. 25 Accordingly, in addition to functioning as chelating resins, amino-functionalized macroporous crosslinked PGME can also be used in ion exchange (electrostatic sorption), because they possess weakly basic primary and secondary amino groups.…”

Polymer in Agriculture: a Review

“…The most common crosslinking agents are divinylbenzene [60] and ethylene glycol dimethacrylate (EGDMA) [61] , while many different surface functionalities are raised by using comonomers with the desired functional groups at the stage of copolymerization or by chemical transformation of the formed polymer using appropriate modifying agents. For the preparation of this kind of materials, the most common functional groups responsible of the interaction with the metal ions are styrene [62] and weakly acidic or basic functionalities: in particular a resin based on acrylic acid was employed by Kocaoba et al [63] for Cr(III) removal, acrylamide (AAm)-based hydrogel with different water absorption properties ( Figure 13) are very useful in Pb (II), Hg (II), Cd (II) and Cr (VI) removal [64,65] and amine resins for Cr (VI) [66] , Ni (II), Zn (II), Cu (II), Cd (II) and Pb (II) [67] . Several articles showed that others versatile functionalities are sulfonate groups and phosphoric groups.…”