Batch Adsorption and Mechanism of Cr(VI) Removal from Aqueous Solution by Polyaniline/Humic Acid Nanocomposite
Publication: Journal of Environmental Engineering
Volume 137, Issue 12
Abstract
Polyaniline (PANI) and humic acid (HA) composite sorbents were prepared by adding different amount of HA into the chemical oxidation process of PANI. The sorbents were characterized by scanning electron microscopy (SEM), Fourier transform infrared (FT-IR) spectroscopy, and adsorption and desorption. Batch adsorption results showed that the sorbent PANI/HA-1 had the best affinity to Cr(VI) in aqueous solution. The adsorption kinetics results of Cr(VI) indicated that the adsorption reached equilibrium within 120 min, and adsorption rate could be described by pseudo second order kinetics. Sorption of Cr(VI) onto PANI/HA-1 fitted the Freundlich adsorption model better than the Langmuir adsorption model. The results of zeta potential measurement and batch experiments showed that the PANI/HA-1 was stable in the pH range of 4–7. The desorption results indicated NaOH eluent had better desorption rate than HCl eluent. The electrochemical-controlled desorption result showed that the loaded Cr(VI) on the PANI/HA-1 could be removed from the matrix, although the desorption rate was not as high as using the eluents. An adsorption mechanism was proposed on the basis of X-ray photoelectron spectroscopy (XPS) and zeta potential measurement results.
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Acknowledgments
This work was supported by the Foundation of The State Key Laboratory of Pollution Control and Resource Reuse of China, and the Scientific Research Foundation of Graduate School of Nanjing University. We are grateful to the anonymous reviewers for their valuable suggestions.
References
Alibadi, M., Morshedzadeh, K., and Soheyli, H. (2006). “Removal of chromium from aqueous solution by lignicellulosic solid wastes.” Int. J. Environ. Sci. Technol., 3(3), 321–325.
Alvarez-Puebla, R. A., Goulet, P. J. G., and Garrido, J. J. (2005). “Characterization of porous structure of different humic fractions.” Colloids Surf. A, 256(2-3), 129–135.
Bai, R. B., and Zhang, X. (2001). “Polypyrrole-coated granules for humic acid removal.” J. Colloid Interface Sci., 243(1), 52–60.
Bhattacharyal, A. K., Naiya, T. K., Mondal, S. N., and Das, S. K. (2008). “Adsorption, kinetics and equilibrium studies on removal of Cr(VI) from aqueous solutions using different low-cost adsorbents.” Chem. Eng. J., 137(3), 529–541.
Bódalo, A., Gómez, J. L., Gómez, E., Hidalgo, A. M., and Alemán, A. (2005). “Viability study of different reverse osmosis membranes for application in the tertiary treatment of wastes from the tanning industry.” Desalination, 180(1-3), 277–284.
Davies, G., et al. (1997). “Tight metal binding by humic acids and its role in biomineralization.” J. Chem. Soc., Dalton Trans., 21, 4047–4060.
Deng, S. B., and Ting, Y. P. (2005). “Polyethylenimine-modified fungal biomass as a high-capacity biosorbent for Cr(VI) anions: Sorption capacity and uptake mechanisms.” Environ. Sci. Technol., 39(21), 8490–8496.
Dissha, A., Meenakshi, G., and Bansal, R. C. (1999). “Adsorption of chromium by activated carbon from aqueous solution.” Carbon, 37(12), 1989–1997.
Dupont, L., and Guillen, E. (2003). “Removal of hexavalent chromium with a lignocellulosic substrate extracted from wheat bran.” Environ. Sci. Technol., 37(18), 4235–4241.
Fang, J., Gu, Z. M., Gang, D. C., Liu, C. X., Ilton, E. S., and Deng, B. L. (2007). “Cr(VI) removal from aqueous solution by activated carbon coated with quaternized poly(4-vinylpyridine).” Environ. Sci. Technol., 41(13), 4748–4753.
Georgi, A., Schierz, A., Trommler, U., Horwitz, C. P., Collins, T. J., and Kopinke, F. D. (2007). “Humic acid modified Fenton reagent for enhancement of the working pH range.” Appl. Catal. B Environ., 72(1-2), 26–36.
Gupta, R. K., Singh, R. A., and Dubey, S. S. (2004). “Removal of mercury ions from aqueous solutions by composite of polyaniline with polystyrene.” Sep. Purif. Technol., 38(3), 225–232.
Huang, J. X., and Kaner, R. B. (2006). “The intrinsic nanofibrillar morphology of polyaniline.” Chem. Commun. (Cambridge), 45(4), 367–376.
Illés, E., and Tombácz, E. (2003). “The role of variable surface charge and surface complexation in the absorption of humic acid on magnetite.” Colloids Surf. A, 230(1-3), 99–109.
Illés, E., and Tombácz, E. (2006). “The effect of humic acid adsorption on pH-dependent surface charging and aggregation of magnetite nanoparticles.” J. Colloid Interface Sci., 295(1), 115–123.
Kang, E. T., Neoh, K. G., and Tan, K. L. (1998). “Polyaniline: A polymer with many interesting intrinsic redox states.” Prog. Polym. Sci., 23(2), 277–324.
Kotaś, J., and Stasicka, Z. (2000). “Chromium occurrence in the environment and methods of its speciation.” Environ. Pollut., 107(3), 263–283.
Kratochvil, D., Pimentel, P., and Volesky, B. (1998). “Removal of Trivalent and Hexavalent Chromium by Seaweed Biosorbent.” Environ. Sci. Technol., 32(18), 2693–2698.
Krishna, M. V. B., Karunasagar, D., Rao, S. V., and Arunachalam, J. (2005). “Preconcentration and speciation of inorganic and methyl mercury in waters using polyaniline and gold trap-CVAAS.” Talanta, 68(2), 329–335.
Kumar, P. A., and Chakraborty, S. (2009). “Fixed-bed column study for hexavalent chromium removal and recovery by short-chain polyaniline synthesized on jute fiber.” J. Hazard. Mater., 162(2-3), 1086–1098.
Li, L. X., Song, H. H., Zhang, Q. C., Yao, J. Y., and Chen, X. H. (2009). “Effect of compounding process on the structure and electrochemical properties of ordered mesoporous carbon/polyaniline composites as electrodes for supercapacitors.” J. Power Sources, 187(1), 268–274.
Liu, J. F., Zhao, Z. S., and Jiang, G. B. (2008a). “Coating magnetic nanoparticles with humic acid for high efficient removal of heavy metals in water.” Environ. Sci. Technol., 42(18), 6949–6954.
Liu, T. Z., Tsang, D. C. W., and Lo, I. M. C. (2008b). “Chromium(VI) reduction kinetics by zero-valent iron in moderately hard water with humic acid: iron dissolution and humic acid adsorption.” Environ. Sci. Technol., 42(6), 2092–2098.
Lo, J. H., and Chen, G. H. (2005). “Fast removal and recovery of Cr(VI) using surface-modified Jacobsite () nanoparticles.” Langmuir, 21(24), 11173–11179.
Lu, A. H., Zhong, S. J., Chen, J., Shi, J. X., Tang, J. L., and Lu, X. Y. (2006). “Removal of Cr(VI) and Cr(III) from aqueous solutions and industrial wastewaters by natural clino-pyrrhotite.” Environ. Sci. Technol., 40(9), 3064–3069.
Mu, S. L. (2006). “Catechol sensor using poly(aniline-co-o-aminophenol) as an electron transfer mediator.” Biosens. Bioelectron., 21(7), 1237–1243.
Mytych, P., and Stasicka, Z. (2004). “Photochemical reduction of chromium(VI) by phenol and its halogen derivatives.” Appl. Catal. B: Environ., 52(3), 167–172.
Namasivayam, C., and Ranganathan, K. (1995). “Removal of Cd(II) from wastewater by adsorption on “waste” hydroxide.” Water Res., 29(7), 1737–1744.
Omole, M. A., K’Owino, I. O., and Sadik, O. A. (2007). “Palladium nanoparticles for catalytic reduction of Cr(VI) using formic acid.” Appl. Catal. B: Environ., 76(1-2), 158–167.
Park, D., Yun, Y. S., Jo, J. H., and Park, J. M. (2005). “Mechanism of hexavalent chromium removal by dead fungal biomass of Aspergillus niger.” Water Res., 39(4), 533–540.
Ramesh, A., Hasegawa, H., Maki, T., and Ueda, K. (2007). “Adsorption of inorganic and organic arsenic from aqueous solutions by polymeric Al/Fe modified montmorillonite.” Sep. Purif. Technol., 56(1), 90–100.
Sag, Y., Kaya, A., and Kutsal, T. (2000). “Lead, copper and zinc biosorption from bicomponent systems modelled by empirical Freundlich isotherm.” Appl. Microbiol. Biotechnol., 53(3), 338–341.
Sarin, V., and Pant, K. K. (2006). “Removal of chromium from industrial waste by using eucalyptus bark.” Bioresour. Technol., 97(1), 15–20.
Sharma, Y. C., and Weng, C. H. (2007). “Removal of chromium(VI) from water and waste water by using riverbed sand: Kinetic and equilibrium studies.” J. Hazard. Mater., 142(1-2), 449–454.
Sun, B., Reddy, E. P., and Smirniotis, P. G. (2005). “Visible light Cr(VI) reduction and organic chemical oxidation by photocatalysis.” Environ. Sci. Technol., 39(16), 6251–6259.
Wang, J., Deng, B. L., Chen, H., Wang, X. R., and Zheng, J. Z. (2009). “Removal of aqueous Hg(II) by polyaniline: sorption characteristics and mechanisms.” Environ. Sci. Technol., 43(14), 5223–5228.
Wu, F. C., Tseng, R. L., and Juang, R. S. (2001). “Kinetic modeling of liquid-phase adsorption of reactive dyes and metal ions on chitosan.” Water Res., 35(3), 613–618.
Xing, Y., Chen, X., and Wang, D. (2007). “Electrically regenerated ion exchange for removal and recovery of Cr(VI) from wastewater.” Environ. Sci. Technol., 41(4), 1439–1443.
Yantasee, W., et al. (2007). “Removal of heavy metals from aqueous systems with thiol functionalized superparamagnetic nanoparticles.” Environ. Sci. Technol., 41(14), 5114–5119.
Yoon, I. H., et al. (2009). “Perchlo- rate adsorption and desorption on activated carbon and anion exchange resin.” J. Hazard. Mater., 164(1), 87–94.
Yurdakoc, M., Scki, Y., and Yuedakoc, S. K. (2005). “Kinetic and thermodynamic studies of boron removal by Siral 5, Siral 40, and Srial 80.” J. Colloid Interface Sci., 286(2), 440–446.
Zachara, J. M., Girvin, D. C., Schmidt, R. L., and Thomas, R. C. (1987). “Chromate adsorption on amorphous iron oxyhydroxide in the presence of major groundwater ions.” Environ. Sci. Technol., 21(6), 589–594.
Zhang, X., and Bai, R. B. (2002). “Adsorption behavior of humic acid onto polypyrrole-coated nylon 6, 6 granules.” J. Mater. Chem., 12, 2733–2739.
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© 2011 American Society of Civil Engineers.
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Received: Aug 30, 2010
Accepted: Jun 27, 2011
Published online: Jun 29, 2011
Published in print: Dec 1, 2011
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