Poly(Acrylic Acid)/Bentonite Composites for Removing High Concentration of Methylene Blue

Abstract:

The poly (acrylic acid)/Bentonite composites (PAA/Bent) was prepared by in-situ polymerization. The structure of PAA/Bent was characterized by FT-IR, XRD and SEM, which indicated that AA intercalated into the interlayers of bentonite, and composite was formed between Bent and PAA. The PAA/Bent was used as a polymer adsorbent to remove methylene blue, a typical cationic dyes. Some important influencing factors on removing MB by PAA/Bent were investigated. The optimum adsorption conditions were obtained as following: the PAA/Bent dosage is 0.08 g, contacting 20 min at room temperature (25 °C), the pH value had little effect on MB adsorption, PAA/Bent can be used to treat wastewater with a broad range of pH value. The removal ratio of MB got to 99.4 %, and the adsorption capacity was 310.7 mgg-1. The removal mechanism is also investigated. It was charge neutralization and physical adsorption. In summary, the results indicated that PAA/Bent is an effective adsorbent and can be used to treat high concentration of MB wastewater.

• Periodical: Advanced Materials Research (Volume 773)
• Pages: 472-476
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.773.472
• Online since: September 2013
• Authors: Yan Wang, Yu Feng He, Ling Zhang, Rong Li, Li Wang, Rong Min Wang
• Keywords: Poly(Acrylic Acid) Bentonite Composites, Polymer Adsorbent, Removing Dye

References

[1] A. Ayar, O. Gezici and M. Kucukosmanoglu. Adsorptive removal of Methylene blue and Methyl orange from aqueous media by carboxylated diaminoethane sporopollenin : on the usability of an aminocarboxilic acid functionality-bearing solid-stationary phase in column techniques. J. Hazard. Mater, 146, 186-193 (2007).

DOI: 10.1016/j.jhazmat.2006.12.009

[2] C. Hachem, F. Bocquillon, O. Zahraa, et al. Decolourization of textile industry wastewater by the photocatalytic degradation process. Dyes Pigments, 49, 117-125 (2001).

DOI: 10.1016/s0143-7208(01)00014-6

[3] T. Robinson, G. McMullan, R. Marchant, et al. Remediation of dyes in textiles effluent: a critical review on current treatment technologies with a proposed alternative. Biresour. Technol, 77, 247-255 (2001).

DOI: 10.1016/s0960-8524(00)00080-8

[4] M. Rafatullah, O. Sulaiman, R. Hashim, et al. Adsorption of methylene blue on low-cost adsorbents: A review. J. Hazard. Mater, 177, 70-80 (2010).

DOI: 10.1016/j.jhazmat.2009.12.047

[5] I.A.W. Tan, A.L. Ahmad and B.H. Hameed. Adsorption of basic dye using activated carbon prepared from oil palm shell: batch and fixed bed studies. Desalination, 225, 13-28 (2008).

DOI: 10.1016/j.desal.2007.07.005

[6] M. Sleiman, D. Vildozo, C. Ferronato, et al. Photocatalytic degradation of azo dye Metanil Yellow: Optimization and kinetic modeling using a chemometric approach. Appl. Catal. B, 77, 1-11 (2007).

DOI: 10.1016/j.apcatb.2007.06.015

[7] M. Abbasi, N.R. Asl. Sonochemical degradation of Basic Blue 41 dye assisted by nanoTiO2 and H2O2. J. Hazard. Mater, 153, 942-947(2008).

DOI: 10.1016/j.jhazmat.2007.09.045

[8] J.S. Wu, C.H. Liu, K.H. Chu, et al. Removal of cationic dye methyl violet 2B from water by cation exchange membranes. J. Membr. Sci, 309 (1-2), 239-245 (2008).

DOI: 10.1016/j.memsci.2007.10.035

[9] L. Fan, Y.W. Zhou, W.S. Yang, et al. Electrochemical degradation of aqueous solution of Amaranth azo dye on ACF under potentiostatic model. Dyes Pigments, 76, 440-446 (2008).

DOI: 10.1016/j.dyepig.2006.09.013

[10] M.X. Zhu, L. Lee, H.H. Wang, et al. Removal of an anionic dye by adsorption/precipitation processes using alkaline white mud. J. Hazard. Mater, 149, 735-741 (2007).

DOI: 10.1016/j.jhazmat.2007.04.037

[11] G. Sudarjanto, B. Keller-Lehmann and J. Keller. Optimization of integrated chemical-biological degradation of a reactive azo dye using response surface methodology. J. Hazard. Mater, 138, 160-168 (2006).

DOI: 10.1016/j.jhazmat.2006.05.054

[12] H.L. Shan, G.J. Ren, C.L. Zhang, et al. Adsorption properties of substandard - goods red from aqueous solution by TiO2 pillared bentonite. Contemporary Chemical Industry, 35, 18-21 (2006).

[13] E.N. ElQada, S.J. Allen and G.M. Walker. Adsorption of Methylene Blue onto activated carbon produced from steam activated bituminous coal: A study of equilibrium adsorption isotherm. Chem. Eng. J, 124, 103-110 (2006).

DOI: 10.1016/j.cej.2006.08.015

[14] S.K. Alpat, O. Ozbayrak, S. Alpat, et al. The adsorption kinetics and removal of cationic dye, Toluidine Blue O, from aqueous solution with Turkish zeolite. J. Hazard. Mater, 151, 213-220 (2007).

DOI: 10.1016/j.jhazmat.2007.05.071

[15] S. Hong, C. Wen, J. He, et al. Adsorption thermodynamics of methylene blue onto bentonite. J. Hazard. Mater, 167, 630-633 (2009).

DOI: 10.1016/j.jhazmat.2009.01.014

[16] J.X. Chen, L.Z. Zhu. Heterogeneous UV-Fenton catalytic degradation of dyestuff in water with hydroxyl-Fe pillared bentonite. Catal. Today, 126, 463-470 (2007).

DOI: 10.1016/j.cattod.2007.06.022

[17] Y.F. He, l. Z hang, D.Z. Yan, et al. Poly(acrylic acid) modifying bentonite with in-situ polymerization for removing lead ions Water Sci. Technol, 65, 1383-1390 (2012).

DOI: 10.2166/wst.2012.011