Abstract
Electroactive PANI-SnP composite films were prepared by drop-coating method on Pt electrodes and investigated as electrochemically switched ion exchange (ESIX) materials for the separation of Cd2+ from aqueous solutions. The composition and morphology of the composite film were characterized by Fourier transform infrared spectrometer (FTIR) and scanning electron microscope (SEM). In solutions containing 0.1 mol·L-1 Ni(NO3)2 and Cd(NO3)2, cyclic voltammetry (CV) and electrochemical quartz crystal microbalance (EQCM) were used to investigate the electrochemical behavior and ion-exchange mechanism of PANI-SnP composite film. The elementary composition of PANI-SnP composite films in both oxidation and reduction states were also characterized by energy dispersive X-ray spectroscopy (EDS) and X-ray photoelectron spectroscopy (XPS). Experimental results show that the PANI-SnP composite films have reversible electrochemical behavior in aqueous solutions containing Cd2+ and Ni2+, respectively. The PANI-SnP composite film electrodes displayed a high selectivity toward Cd2+ in Cd2+/Ni2+ binary mixtures and the Cd2+ ions could be separated effectively from aqueous solutions by ESIX processes.
Graphical Abstract
Keywords
electrochemically switched ion exchange, electroactive PANI-SnP, composite film, Cd(II) separation
Publication Date
2013-08-28
Online Available Date
2013-01-16
Revised Date
2013-01-11
Received Date
2012-12-25
Recommended Citation
Yan-ting Feng, Jun-qiang Xiao, Xiao-gang Hao, Xu-li Ma, Zhong-de Wang, Nian-chen Han.
Electrochemically Switched Ion Exchange Properties of PANI-SnP Composite Films in Wastewater Containing Ni2+ and Cd2+[J]. Journal of Electrochemistry,
2013
,
19(4): 322-327.
DOI: 10.61558/2993-074X.2116
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol19/iss4/3
References
[1] Staessen J A, Roels H A, Emelianov D, et al. Environmental exposure to cadmium, forearm bone density, and risk of fractures: Prospective population study[J]. Lancet, 1999, 353(9159): 1140-1144.
[2] Mauchauffee S, Meux E, Schneider M. Selective precipitation of cadmium from nickel cadmium sulphate solutions using sodium decanoate[J]. Separation and Purification Technology, 2008, 62(2): 394-400.
[3] Rassat S D, Sukamto J H, Orth R J, et al. Development of an electrically switched ion exchange process for selective ion separations[J]. Separation and Purification Technology, 1999, 15(3): 207-222.
[4] Jeerage K M, Schwartz D T. Characterization of cathodically deposited nickel hexacyanoferrate for electrochemically switched ion exchange[J]. Separation Science and Technology, 2000, 35(15): 2375-2392.
[5] Zhang M (张玫), Hao X G(郝晓刚), Ma X L(马旭丽), et al. Ion exchange performances of nickel hexacyanoferrate thin films on graphite substrate[J]. Rare Metal Materials and Engineering (稀有金属材料与工程), 2006, 35(suppl 2): 249-253.
[6] Lin Y H, Cui X L, Bontha J. Electrically controlled anion exchange based on polypyrrole and carbon nanotubes nanocomposite for perchlorate removal[J]. Environmental Science and Technology, 2006, 40(12), 4004-4009.
[7] Chen W, Xia X H. Highly stable nickel hexacyanoferrate nanotubes for electrically switched ion exchange[J]. Advanced Functional Materials, 2007, 17(15): 2943-2948.
[8] Li H (李慧), Li Y (李越), Hao X G(郝晓刚), et al. EQCM studies of electropolymerization and electrochemically controlled phenol separation of polyaniline film[J]. Chemical Journal of Chinese Universities(高等学校化学学报), 2011, 32(7): 1645-1650.
[9] Zarbir A J G, Maia D J, Paoli M A D, et al. Polyaniline Intercalation in α-Sn(HPO4)2·H2O[J]. Synthetic Metals, 1999, 102(1/3): 1277-1278.
[10] Pruneanu S, Csahok E, Kertesz V, et al. Electrochemical quartz crystal microbalance study of the influence of the solution composition on the behaviour of poly(aniline) electrodes[J]. Electrochimica Acta, 1998, 43(16/17): 2305-2323.
[11] Parsa A, Ghani S A. Electrocopolymerization of aniline and ortho-phenylenediamine via facile negative shift of polyaniline redox peaks[J]. Polymer, 2008, 49(17): 3702-3708.
[12] Bortun A I, Khainakov S A, Bortun L N, et al. Synthesis and characterization of a novel layered tin(Ⅳ) phosphate with ion exchange properties[J]. Materials Research Bulletin, 1999, 34(6): 921-932.
[13] Khan A A, Inamuddin. Preparation, physico-chemical characterization, analytical applications and electrical conductivity measurement studies of an ‘organic-inorganic’ composite cation-exchanger: Polyaniline Sn(IV) phosphate[J]. Reactive and Functional Polymers, 2006, 66(12): 1649-1663.
[14] Hu Z A, Xie Y L, Wang Y X, et al. Polyaniline/SnO2 nanocomposite for supercapacitor applications[J]. Materials Chemistry and Physics, 2009, 114(2/3): 990-995.
[15] Zhang Y(张颖), Wu J Y(吴杰颖), Tian Y P(田玉鹏), et al. Synthesis and characterization of mono-N-functionalized diaza-dioxa macrocycle and its rare earth complexes[J]. Chinese Journal of Inorganic Chemistry(无机化学学报), 2001, 17(1): 139-142.
[16] Tian S J, Liu J Y, Zhu T, et al. Polyaniline/gold nanoparticle multilayer films: Assembly, properties, and biological applications[J]. Chemistry of Materials, 2004, 16(21): 4103-4108.
[17] Takei T, Yonesaki Y, Kumada N, et al. Preparation of oriented titanium phosphate and tin phosphate/polyaniline hybrid films by electrochemical deposition[J]. Langmuir, 2008, 24(16): 8554-8560.
[18] Zhang L, Shi Z G, Lang Q H,et al. Electrochemical synthesis of belt-like polyaniline network on p-phenylenediamine functionalized glassy carbon electrode and its use for the direct electrochemistry of horse heart cytochromec[J]. Electrochimica Acta, 2010, 55(3): 641-647.
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