caa a22 4500 445385294 CHVBK 20180317143030.0 cr unu---uuuuu 170323e20110601xx s 000 0 eng 10.1007/s10924-011-0296-2 doi (NATIONALLICENCE)springer-10.1007/s10924-011-0296-2 Eco-Friendly, Vascular Shape and Interpenetrating Poly (Acrylic Acid) Grafted Pectin Hydrogels; Biosorption and Desorption Investigations [Elektronische Daten] [Mohammad Fares, Yahya Tahboub, Samar Khatatbeh, Yousef Abul-Haija] The synthesis and characterization of poly (acrylic acid) grafted pectin hydrogel followed by biosorption and desorption characteristics of cadmium, as a model heavy metal, have been studied. The grafted eco-friendly pectin based interpenetrating hydrogel was prepared in the presence of gluteraldehyde crosslinker under N2 atmosphere and characterized using 1H-NMR, FTIR, TGA and SEM techniques. Gluteraldehyde was found to form one-arm and two-arm crosslinks in the copolymer. Upon grafting, two-dimensional sheet structures bounded to tubular and vascular cylindrical rods were observed. The biosorption and desorption data, determined experimentally, were fitted to pseudo-second order reaction kinetics. At higher ionic strength values, the maximum metal uptake value (q max) was lowered and pseudo-second order rate constant (k 2) was increased. Whereas, at higher pH values the maximum metal uptake value (q max) was increased and Pseudo-second order rate constant (k 2) was decreased. 0.1M HCl solution was a suitable eluent to regenerate the hydrogel surface and recover the adsorbed cadmium metal ions. Pectin based copolymer could be used as an efficient candidature biosorbent for the recovery of cadmium metal ions from aqueous solutions. Springer Science+Business Media, LLC, 2011 Vascular shape nationallicence Poly (acrylic acid) grafted pectin hydrogel nationallicence Eco-friendly nationallicence Maximum metal uptake value ( q max) nationallicence Fares Mohammad Department of Applied Chemistry, Faculty of Science and Arts, Jordan University of Science and Technology, P.O. Box 3030, 22110, Irbid, Jordan aut Tahboub Yahya Department of Applied Chemistry, Faculty of Science and Arts, Jordan University of Science and Technology, P.O. Box 3030, 22110, Irbid, Jordan aut Khatatbeh Samar Department of Applied Chemistry, Faculty of Science and Arts, Jordan University of Science and Technology, P.O. Box 3030, 22110, Irbid, Jordan aut Abul-Haija Yousef Department of Applied Chemistry, Faculty of Science and Arts, Jordan University of Science and Technology, P.O. Box 3030, 22110, Irbid, Jordan aut Journal of Polymers and the Environment Springer US; http://www.springer-ny.com 19/2(2011-06-01), 431-439 1566-2543 19:2<431 2011 19 10924 https://doi.org/10.1007/s10924-011-0296-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10924-011-0296-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Fares Mohammad Department of Applied Chemistry, Faculty of Science and Arts, Jordan University of Science and Technology, P.O. Box 3030, 22110, Irbid, Jordan aut NATIONALLICENCE 700 1- Tahboub Yahya Department of Applied Chemistry, Faculty of Science and Arts, Jordan University of Science and Technology, P.O. Box 3030, 22110, Irbid, Jordan aut NATIONALLICENCE 700 1- Khatatbeh Samar Department of Applied Chemistry, Faculty of Science and Arts, Jordan University of Science and Technology, P.O. Box 3030, 22110, Irbid, Jordan aut NATIONALLICENCE 700 1- Abul-Haija Yousef Department of Applied Chemistry, Faculty of Science and Arts, Jordan University of Science and Technology, P.O. Box 3030, 22110, Irbid, Jordan aut NATIONALLICENCE 773 0- Journal of Polymers and the Environment Springer US; http://www.springer-ny.com 19/2(2011-06-01), 431-439 1566-2543 19:2<431 2011 19 10924 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer