Issue
Korean Journal of Chemical Engineering,
Vol.28, No.7, 1532-1538, 2011
Removal of arsenic from aqueous solution using polyaniline/rice husk nanocomposite
The present study deals with the adsorption of arsenic ions from aqueous solution on polyaniline/rice husk (PAn/RH) nanocomposite. Batch studies were performed to evaluate the influence of various experimental parameters like pH, adsorbent dosage, contact time and the effect of temperature. Optimum conditions for arsenic removal were found to be pH 10, adsorbent dosage of 10 g/L and equilibrium time 30 minutes. Adsorption of arsenic followed pseudo-second-order kinetics. The equilibrium adsorption isotherm was better described by Freundlich adsorption isotherm model. The adsorption capacity (qmax) of PAn/RH for arsenic ions in terms of monolayer adsorption was 34.48mg/g. The change of entropy (ΔS0) and enthalpy (ΔH0) was estimated at .0.066 kJ/(mol K) and .22.49 kJ/mol, respectively. The negative value of the Gibbs free energy (ΔG0) indicates feasible and spontaneous adsorption of arsenic on PAn/RH.
[References]
  1. Lo SL, Jeng HT, Lai CH, Water Sci. Technol., 35, 63, 1997
  2. Kim J, Benjamin MM, Water Res., 38, 2053, 2004
  3. Zouboulis A, Katsoyiannis I, Sep. Sci. Technol., 37(12), 2859, 2002
  4. Ning RY, Desalination, 143(3), 237, 2002
  5. Gihring TM, Druschel GK, Mccleskey RB, Hamers RJ, Banfield JF, Environ. Sci. Technol., 35, 3857, 2001
  6. Zhang QL, Lin YC, Chen X, Gao NY, J. Hazard. Mater., 148(3), 671, 2007
  7. Sperlich A, Werner A, Genz A, Amy G, Worch E, Jekel M, Water Res., 39, 1190, 2005
  8. Eisazadeh H, Bistouni BG, Korean J. Chem. Eng., 28(1), 287, 2011
  9. Kudelski A, Bukowska J, Jackowska K, J. Mol. Struct., 483, 291, 1999
  10. Ruotolo LAM, Gubulin JC, Chem. Eng. J., 110(1-3), 113, 2005
  11. Gbatu TP, Ceylan O, Sutton KL, Rubinson JF, Galal A, Caruso JA, Mark HB, Anal. Commun., 36, 203, 1999
  12. Ng SC, Zhou XC, Chen ZK, Miao P, Chan HSO, Li SFY, Fu P, Langmuir, 14(7), 1748, 1998
  13. Yang YJ, Huang HJ, Anal. Chem., 73, 1377, 2001
  14. Desimoni E, Bassani I, Anal. Commun., 36, 45, 1999
  15. Hepel M, Zhang XM, Stephenson R, Perkins S, Microchem. J., 56, 79, 1997
  16. Wampler WA, Basak S, Rajeshvar K, Carbon., 34, 747, 1996
  17. Alatorre MA, Gutierrez S, Paramo U, Ibanez JG, J. Appl. Electrochem., 28(5), 551, 1998
  18. Nakbanpote W, Goodman BA, Thiravetyan P, Physicochem. Eng. Aspects., 304, 7, 2007
  19. Vadivelan V, Kumar KV, J. Colloid Interface Sci., 286(1), 90, 2005
  20. Srivastava VC, Mall ID, Mishra IM, J. Hazard. Mater., 134(1-3), 257, 2006
  21. Ramesh A, Hasegawa H, Maki T, Ueda K, Sep. Purif. Technol., 56(1), 90, 2007
  22. Chakravarty S, Dureja V, Bhattacharyya G, Maity S, Bhattacharjee S, Water Res., 36, 625, 2002
  23. Thirunavukkarasu OS, Viraraghavan T, Subramanian KS, Tanjore S, Urban Water., 4, 415, 2002
  24. Maity S, Chakravarty S, Bhattacharjee S, Roy BC, Water Res., 39, 2579, 2005
  25. Lafferty BJ, Loeppert RH, Environ. Sci. Technol., 39, 2120, 2005
  26. Pena ME, Korfiatis GP, Patel M, Lippincott L, Meng X, Water Res., 39, 2327, 2005
  27. Kim Y, Kim C, Choi I, Rengaraj S, Yi J, Environ. Sci. Technol., 38, 924, 2004
  28. Ansari R, Feizy J, Delavar AF, E-Journal of Chemistry., 5, 853, 2008
  29. Palaniappan S, Eur. Polym. J., 37, 975, 2001
  30. Ray SS, Biswas B, Synth. Met., 108, 231, 2000
  31. Langmuir I, J. Am. Chem. Soc., 40, 1361, 1918
  32. Weber TW, Chakraborti RK, J. Am. Inst. Chem. Eng., 20, 228, 1974
  33. McKay G, Blair HS, Gardener JR, J. Appl. Polym. Sci., 27, 3043, 1982
  34. Freundlich H, Phys. Chem. Soc., 40, 1361, 1906
  35. Fadali OA, Magdy YH, Daifullah AA, Ebrahiem EE, Nassar NN, J. Environ. Sci. Health, Environ. Sci. Eng., 9, 465, 2005
  36. Wu FC, Tseng RL, Juang RS, Environ. Technol., 22, 205, 2001
  37. Raven KP, Jain A, Loeppert RH, Environ. Sci. Technol., 32, 344, 1998
  38. Annadurai G, Juang RS, Lee DJ, J. Hazard. Mater., 92(3), 263, 2002
  39. Ozacar M, Sengil IYA, Adsorption., 8, 301, 2002
  40. Ho YS, Chiang CC, Adsorption., 7, 139, 2001