PMID- 31201908 OWN - NLM STAT- MEDLINE DCOM- 20200108 LR - 20200108 IS - 1879-0003 (Electronic) IS - 0141-8130 (Linking) VI - 136 DP - 2019 Sep 1 TI - Gamma radiation induced preparation of polyampholyte nanocomposite polymers for removal of Co(II). PG - 1273-1281 LID - S0141-8130(19)31114-6 [pii] LID - 10.1016/j.ijbiomac.2019.06.081 [doi] AB - A series of polyampholyte nanocomposite biopolymers, poly(N,N-diallyldimethylammonium chloride-co-acrylamide) grafted on carboxymethylcellulose/iron(III) oxide [P(DADMAC-AAm)CMC/Fe(2)O(3)] and poly(N,N-diallyldimethylammonium chloride-co-sodium acrylate) grafted on carboxymethylcellulose/iron(III) oxide [P(DADMAC-SA)CMC/Fe(2)O(3)], was prepared with different molar ratios of anionic groups to cationic groups using gamma irradiation. The grafting properties and swelling behavior were investigated as a function of grafting conditions such as DADMAC, AAm, SA, and CMC concentrations and absorbed dose. Fourier transform infrared spectroscopic analysis (FTIR) confirmed the graft copolymerization. Scanning electron microscope (SEM) was employed to check the morphological structure of CMC, P(DADMAC-AAm)CMC/Fe(2)O(3), and P(DADMAC-SA)CMC/Fe(2)O(3). Thermogravimetric analysis (TGA) and differential thermal analysis (DTA) further characterized the grafted copolymers and showed their high thermal stability. Using batch sorption experiments and (60)Co as a radiotracer, P(DADMAC-AAm)CMC/Fe(2)O(3) and P(DADMAC-SA)CMC/Fe(2)O(3) were evaluated for Co(II) removal from aqueous solutions. Experimentally, P(DADMAC-AAm)CMC/Fe(2)O(3) and P(DADMAC-SA)CMC/Fe(2)O(3) show high sorption capacity of Co(II), i.e. 69.67 mg g(-1) and 75.17 mg g(-1), respectively, which makes them potential sorbents for Co(II) removal from water/wastewater. Finally, the Co(II) sorption was examined using sorption isotherm and kinetic models. Cobalt sorption was best fitted to Langmuir model which suggests the sorption is of chemisorption type. On the other hand, the sorption kinetics was best represented by the pseudo-first-order kinetic model. CI - Copyright (c) 2019 Elsevier B.V. All rights reserved. FAU - Elsharma, Emad M AU - Elsharma EM AD - Nuclear Chemistry Department, Hot Laboratories Center, Egyptian Atomic Energy Authority, Inshas, Cairo 13759, Egypt. FAU - Saleh, Alaaeldine Sh AU - Saleh AS AD - Nuclear Chemistry Department, Hot Laboratories Center, Egyptian Atomic Energy Authority, Inshas, Cairo 13759, Egypt. Electronic address: alaaeldinesaleh@gmail.com. FAU - Abou-Elmagd, Wael S I AU - Abou-Elmagd WSI AD - Department of Chemistry, Faculty of Science, Ain Shams University, Abassia, Cairo 11566, Egypt. FAU - Metwally, Essam AU - Metwally E AD - Nuclear Chemistry Department, Hot Laboratories Center, Egyptian Atomic Energy Authority, Inshas, Cairo 13759, Egypt. FAU - Siyam, Tharwat AU - Siyam T AD - Nuclear Chemistry Department, Hot Laboratories Center, Egyptian Atomic Energy Authority, Inshas, Cairo 13759, Egypt. LA - eng PT - Journal Article DEP - 20190612 PL - Netherlands TA - Int J Biol Macromol JT - International journal of biological macromolecules JID - 7909578 RN - 0 (Ferric Compounds) RN - 0 (Polymers) RN - 0 (Water Pollutants, Chemical) RN - 059QF0KO0R (Water) RN - 1K09F3G675 (ferric oxide) RN - 789U1901C5 (Copper) RN - K679OBS311 (Carboxymethylcellulose Sodium) SB - IM MH - Carboxymethylcellulose Sodium/chemistry MH - Copper/*chemistry/*isolation & purification MH - Ferric Compounds/chemistry MH - *Gamma Rays MH - Hydrogen-Ion Concentration MH - Kinetics MH - Nanocomposites/*chemistry MH - Particle Size MH - Polymers/*chemistry MH - Temperature MH - Water/chemistry MH - Water Pollutants, Chemical/chemistry/isolation & purification MH - Water Purification/*methods EDAT- 2019/06/16 06:00 MHDA- 2020/01/09 06:00 CRDT- 2019/06/16 06:00 PHST- 2019/02/13 00:00 [received] PHST- 2019/06/08 00:00 [revised] PHST- 2019/06/11 00:00 [accepted] PHST- 2019/06/16 06:00 [pubmed] PHST- 2020/01/09 06:00 [medline] PHST- 2019/06/16 06:00 [entrez] AID - S0141-8130(19)31114-6 [pii] AID - 10.1016/j.ijbiomac.2019.06.081 [doi] PST - ppublish SO - Int J Biol Macromol. 2019 Sep 1;136:1273-1281. doi: 10.1016/j.ijbiomac.2019.06.081. Epub 2019 Jun 12.