Electrochemically synthesized GIC-based adsorbents for water treatment through adsorption and electrochemical regeneration

다국어 초록 (Multilingual Abstract)

The flake GIC material delivered a small adsorptive capacity for a number of organic pollutants, however, underwent quick adsorption and electrochemical regeneration in minutes. In this study, binary and ternary GIC-based adsorbents were prepared using electrochemical intercalation of Chinese large flake graphite (CLFG) and Madagascan medium flake graphite (MMFG) materials. In this context GICbisulphate, GIC-nitrate, GIC-bisulphate-acetate, GIC nitrate-bisulphate, and GIC-nitrate-acetate were developed and characterized in order to evaluate their adsorptive and electrical properties. The adsorption behaviour was studied using an organic dye, acid violet 17, as a model dissolved organic pollutant. The treatment time and acid concentration for electrochemical intercalation were optimized in order to maximize the adsorptive capacity of the GIC based adsorbents. GIC-bisulphate delivered double adsorptive capacity after electrochemical intercalation, whereas, GIC nitrate diminished the adsorptive capacity to one half that of GIC bisulphate. However, no significant effect of ternary intercalated compounds was observed in terms of improved adsorption capacity or electrical conductivity.

참고문헌 (Reference)

1 B. Ebert, 6 : 181-, 1976

2 M. Streat, 78 : 363-, 2000

3 M. J. Mckelvy, 41 : 497-, 1990

4 F. Vieira, 44 : 2587-, 2006

5 D. D. L. Chung, 37 : 1475-, 2002

6 M. Inagaki, 4 (4): 1560-, 1989

7 N.E. Sorokina, 65 : 185-190, 2004

8 N. E. Sorokina, 38 (38): 589-, 2002

9 N. E. Sorokina, 37 (37): 584-, 2001

10 N. W. Brown, 37 : 1329-, 2007

11 N. W. Brown, 49 : 219-, 2004

12 N. W. Brown, 38 : 3067-, 2004

13 N. W. Brown, 49 : 3269-, 2004

14 M. S. Dresselhaus, 51 (51): 1-, 2002

15 R. M. Narbaitz, 28 : 1771-, 1994

16 N. V. Maksimova, 65 : 177-180, 2004

17 H. M. A. Asghar, 2013

18 H. M. A. Asghar, 42 : 797-, 2012

19 H. M. A. Asghar, 2013

20 S. N. Hussain, 2013

21 S. N. Hussain, 92 : 20-, 2013

22 M. Contiramsdon, 66 : 1849-, 2012

23 F. M. Mohammed, 45 : 3065-, 2011

24 F. M. Mohammed, 2 : 223-, 2012

25 Hafiz Muhammad Anwaar Asghar, "Removal of humic acid from water using adsorption coupled with electrochemical regeneration" 한국화학공학회 30 (30): 1415-1422, 2013

26 L. Kirkup, "Experimental Methods: An Introduction to the Analysis and Presentation of Data" John Wiley & Sons 1994

27 N. W. Brown, "Development of a cleaner process for the manufacture of exfoliating graphite, Dissertation submitted as part of the Master of Science degree in Integrated Pollution Management" The University of Manchester 1995

28 H.M.A. Asghar, "Development of Graphitic Adsorbents for Water Treatment Using Adsorption and Electrochemical Regeneration" University of Manchester 2011