A novel semi-IPN hydrogel: Preparation, swelling properties and adsorption studies of Co (II)

다국어 초록 (Multilingual Abstract)

A range of super-absorbent semi-IPN hydrogels—polyvinyl alcohol/poly (acrylic acid-co-acrylic amide)(PVA-P(AA-co-AM)) were synthesized via free radical polymerization method under ultrasound-assistedcondition. L16 (45) orthogonal experiments were designed to optimize the synthesis conditions and thesuccess was characterized by FTIR, SEM and TGA. Swelling capacities were studied in various pH solutionand saline solution whose results indicated that pH in solution shows an obvious influence on it and thesalt resistance is greater in salt solution of low valence relative to that of high valence. Meanwhile, itsswelling behavior was evaluated in water solution, which revealed that the swelling process conformedto the Schott model and the diffusion type was non-Fickian diffusion. Moreover, the adsorption on cobalt(II) from aqueous solutions was also investigated in the paper. The optimumpH value was found close to4 for the cobalt (II) adsorption and it was discovered that adsorption kinetics and adsorption isothermsfor cobalt (II) were in accordance with the pseudo-second-order model and the Freundlich modelrespectively. Besides, thermodynamic parameters were calculated for the cobalt (II) adsorption and thefindings revealed that the adsorption behavior is spontaneous and endothermic.

참고문헌 (Reference)

1 Y. Z. Wang, 130 : 161-, 2013

2 H. Wang, 26 : 1879-, 2014

3 T. Wan, 130 : 3404-, 2013

4 A. Ayoub, 1 : 1102-, 2013

5 Z. H. Ma, 102 : 2853-, 2011

6 Q. S. Song, 136 : 437-, 2013

7 X. F. Wang, 58 : 1173-, 2013

8 D. L. Elbert, 7 : 31-, 2011

9 S. S. Barkade, 74 : 115-, 2013

10 T. Wells, 20 : 1463-, 2013

11 K. Kosemund, 53 : 81-, 2009

12 R. Liang, 77 : 181-, 2009

13 C. Y. Chang, 46 : 92-, 2010

14 N. N. Reddy, 385 : 20-, 2011

15 L. Wang, 322 : 47-, 2008

16 E. Orozco-Guareno, 349 : 583-, 2010

17 V. K. Thakur, 72 : 834-, 2015

18 N. Chung Le, 6 : 2015

19 M. Mohapatra, 2 : 89-, 2010

20 M. Monier, 70 : 257-, 2010

21 K. S. V. Krishna Rao, 66 : 333-, 2006

22 W. B. Wang, 80 : 1028-, 2010

23 K. Z. Elwakeel, 134 : 190-, 2015

24 S. Pandey, 134 : 646-, 2015

25 S. H. Lee, 226 : 179-, 2016

26 G. Z. Kyzas, 490 : 74-, 2016

27 K. Ghosh, 54 : 6464-, 2013

28 J. C. A. Marr, 43 : 225-, 1998

29 D. Lison, 26 : 585-, 1996

30 M. Ghaly, 284 : 1373-, 2016

31 M. A. Barakat, 4 : 361-, 2011

32 M. Kruk, 105 : 681-, 2001

33 S. M. Rivera-Jimenez, 132 : 470-, 2010

34 D. Gu, 481 : 319-, 2015

35 F. Karkeh-abadi, 312 : 224-, 2016

36 N. Bas, 131 : 2540-, 2014

37 L. Ding, 42 : 2745-, 2001

38 D. W. Lim, 38 : 579-, 2002

39 P. Thilagavathy, 22 : 1193-, 2014

40 M. Monier, 184 : 118-, 2010

41 M. Monier, 177 : 962-, 2010

42 Peng Liu, "Synthesis of covalently crosslinked attapulgite/poly (acrylic acid-co-acrylamide) nanocomposite hydrogels and their evaluation as adsorbent for heavy metal ions" 한국공업화학회 23 : 188-193, 2015

43 Mahdi Ansari, "Synthesis of Nano-NaX Zeolite by Microwave Heating Method for Removal of Lead, Copper, and Cobalt Ions from Aqueous Solution" American Society of Civil Engineers (ASCE) 141 (141): 04014088-, 2015

44 M. Abbas, "Kinetic and equilibrium studies of cobalt adsorption on apricot stone activated carbon" 한국공업화학회 20 (20): 745-751, 2014

45 Ruma Bhattacharyya, "Adsorption of industrial dyes by semi-IPN hydrogels of Acrylic copolymers and sodium alginate" 한국공업화학회 22 : 92-102, 2015