Structure of PVA/gelatin hydrogel beads and adsorption mechanism for advanced Pb(II) removal

Bing Hui; Yi Zhang; Lin Ye

Journal of Industrial and Engineering Chemistry, Vol.21, 868-876, January, 2015

DOI10.1016/j.jiec.2014.04.025 Export Citation

Structure of PVA/gelatin hydrogel beads and adsorption mechanism for advanced Pb(II) removal

Bing Hui, Yi Zhang, and Lin Ye^†

State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China

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Poly(vinyl alcohol)(PVA)/gelatin hydrogel beads were prepared for Pb2+ removal. The loose network structure formed at high dosage of gelatin resulted in increasing permeability and Pb2+ adsorption capacity. High content of Pb2+ was adsorbed on the surface of hydrogel, which dense structure could hinder Pb2+ to internal diffusion. The Pb2+ adsorption was rapid and spontaneous, and favorable at high temperature and Pb2+ concentration; Langmuir isotherm fits well with the experimental data, indicating homogeneous nature of monolayer adsorption of Pb2+; the adsorption process belonged to the secondorder kinetic model, indicating chemical adsorption with ion-exchange mechanism. Good reusability of the hydrogel was achieved.

Keywords:Poly(vinyl alcohol)(PVA)/gelatin hydrogel;Pb2+ removal;Adsorption mechanism

[References]

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Gupta SS, Bhattacharyya KG, Appl. Clay Sci., 30, 199 (2005)
Tunali S, Akar T, Ozcan AS, Kiran S, Ozcan A, Sep. Purif. Technol., 47(3), 105 (2006)
Zhang LS, Wu W, Wang JL, J. Environ. Sci., 19, 1293 (2007)
Wu KYA, Wisecarver KD, Biotechnol. Bioeng., 39, 447 (1992)
Sari A, Tuzen M, Citak D, Soylak M, J. Hazard. Mater., 149(2), 283 (2007)
Mansur HS, Sadahira CM, Souza AN, Mansur AAP, Mater. Sci. Eng. C-Biomimetic Supramol. Syst., 28, 539 (2008)
Zain NAM, Suhaimi MS, Idris A, Process Biochem., 46, 2122 (2011)
Huang FQ, Zheng Y, Yang Y, J. Appl. Polym. Sci., 103(1), 351 (2007)
Hui B, Zhang Y, Ye L, Chem. Eng. J., 235, 207 (2014)
Wu FC, Tseng RL, Juang RS, J. Hazard. Mater., 81(1-2), 167 (2001)
Gupta VK, Rastogi A, J. Hazard. Mater., 152(1), 407 (2008)
Lopez-Delgado A, Perez C, Lopez FA, Water Res., 32, 989 (1998)
Singh A, Kumar D, Gaur JP, Bioresour. Technol., 98(18), 3622 (2007)
Laus R, Costa TG, Szpoganicz B, Favere VT, J. Hazard. Mater., 183(1-3), 233 (2010)
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[Referenced By]

[1] Volesky B, Holan ZR, Biotechnol. Prog., 11(3), 235 (1995)

[2] Bahadir T, Bakan G, Altas L, Buyukgungor H, Enzyme Microb. Technol., 41(1-2), 98 (2007)

[3] Dabrowski A, Hubicki Z, Podkoscielny P, Robens E, Chemosphere, 56, 91 (2004)

[4] Charerntanyarak L, Water Sci. Technol., 39, 135 (1999)

[5] Demirbas A, J. Hazard. Mater., 157(2-3), 220 (2008)

[6] Crawford RJ, Mainwaring DE, Harding IH, Colloids Surf. A: Physicochem. Eng. Asp., 126, 167 (1997)

[7] Potgieter JH, Potgieter-Vermaak SS, Kalibantonga PD, Miner. Eng., 19(5), 463 (2006)

[8] Erdem E, Karapinar N, Donat R, J. Colloid Interface Sci., 280(2), 309 (2004)

[9] Al-Asheh S, Banat F, Al-Omari R, et al., Chemosphere, 41, 659 (2000)

[10] Bulut Y, Tez Z, J. Environ. Sci., 19, 160 (2007)

[11] Crini G, Prog. Polym. Sci, 30, 38 (2005)

[12] Parajuli D, Inoue K, Ohto K, Oshima T, Murota A, Funaoka M, Makino K, React. Funct. Polym., 62(2), 129 (2005)

[13] Bereket G, Aroguz AZ, Ozel MZ, J. Colloid Interface Sci., 187(2), 338 (1997)

[14] Gupta SS, Bhattacharyya KG, Appl. Clay Sci., 30, 199 (2005)

[15] Tunali S, Akar T, Ozcan AS, Kiran S, Ozcan A, Sep. Purif. Technol., 47(3), 105 (2006)

[16] Zhang LS, Wu W, Wang JL, J. Environ. Sci., 19, 1293 (2007)

[17] Wu KYA, Wisecarver KD, Biotechnol. Bioeng., 39, 447 (1992)

[18] Sari A, Tuzen M, Citak D, Soylak M, J. Hazard. Mater., 149(2), 283 (2007)

[19] Mansur HS, Sadahira CM, Souza AN, Mansur AAP, Mater. Sci. Eng. C-Biomimetic Supramol. Syst., 28, 539 (2008)

[20] Zain NAM, Suhaimi MS, Idris A, Process Biochem., 46, 2122 (2011)

[21] Huang FQ, Zheng Y, Yang Y, J. Appl. Polym. Sci., 103(1), 351 (2007)

[22] Hui B, Zhang Y, Ye L, Chem. Eng. J., 235, 207 (2014)

[23] Wu FC, Tseng RL, Juang RS, J. Hazard. Mater., 81(1-2), 167 (2001)

[24] Gupta VK, Rastogi A, J. Hazard. Mater., 152(1), 407 (2008)

[25] Lopez-Delgado A, Perez C, Lopez FA, Water Res., 32, 989 (1998)

[26] Singh A, Kumar D, Gaur JP, Bioresour. Technol., 98(18), 3622 (2007)

[27] Laus R, Costa TG, Szpoganicz B, Favere VT, J. Hazard. Mater., 183(1-3), 233 (2010)

[28] Li XL, Li YF, Ye ZF, Chem. Eng. J., 178, 60 (2011)

[29] Akkaya G, Ozer A, Process Biochem., 40, 3559 (2005)