Effect of polyvinyl alcohol adsorption on the mixed alumina-silica-titania suspension stability

M. Wisniewska; K. Szewczuk-Karpisz; I. Ostolska; T. Urban; K. Terpiłowski; V.I. Zarko; V.M. Gun’ko

Journal of Industrial and Engineering Chemistry, Vol.23, 265-272, March, 2015

DOI10.1016/j.jiec.2014.08.027 Export Citation

Effect of polyvinyl alcohol adsorption on the mixed alumina-silica-titania suspension stability

M. Wisniewska^†, K. Szewczuk-Karpisz, I. Ostolska, T. Urban, K. Terpiłowski¹, V.I. Zarko¹, and V.M. Gun’ko¹

Department of Radiochemistry and Colloid Chemistry, Faculty of Chemistry, Maria Curie Sklodowska University, M. Curie Sklodowska Sq. 3, 20-031 Lublin, Poland
¹Department of Interfacial Phenomena, Faculty of Chemistry, Maria Curie Sklodowska University, M. Curie Sklodowska Sq. 3, 20-031 Lublin, Poland

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The adsorption and electrokinetic properties as well as the stability of the AST71 suspension in the absence and presence of polyvinyl alcohol (PVA) were examined. AST71 is a mixed oxide of alumina, silica and titania. All measurements were carried out as a function of solution pH and the polymer molecular weight. The pooled result analysis showed that the PVA adsorption amount strongly depends on the solution pH. The higher solution pH value is, the more polymer macromolecules are adsorbed on the solid surface. This dependence is mainly associated with the PVA chain conformation. The adsorption of polyvinyl alcohol changes the stability of the AST71 suspension, but only in the solution of pH 9. Under these conditions the system without PVA is unstable, which is connected with the isoelectric point of the solid particles. In the presence of the polymer the electrosteric stabilization occurs.

Keywords:AST71;Mixed oxide;Polyvinyl alcohol;Polymer adsorption;Electrosteric stabilization

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[2] Lapshin RV, Alekhin AP, Kirilenko AG, Odintsov SL, Krotkov VA, J. Surf. Invest.: X-ray, Synchrotron Neutron Tech., 4, 1 (2010)

[3] Bertazzo S, Zambuzzi WF, da Silva HA, Ferreira CV, Bertran CA, Clin. Oral. Implants Res., 20, 288 (2009)

[4] London G, Chen KY, Carroll GT, Feringa BL, Chem. Eur. J., 19, 10690 (2013)

[5] Lim MH, Blanford CF, Stein A, Chem. Mater., 10, 467 (1998)

[6] Behrisch R, Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms, 19-20, 67 (1987)

[7] Kuraica MM, Astashynski VM, Dojcinovic IP, Puric J, Phys. Laser Cryst., 126, 245 (2003)

[8] Gawne DT, Lat. Am. J. Metall. Mater., 13, 5 (1993)

[9] Gun’ko VM, Zarko VI, Mironyuk IF, Goncharuk EV, Guzenko NV, Borysenko MV, Gorbik PP, Mishchuk OA, Janusz W, Leboda R, Skubiszewska-Zieba J, Grzegorczyk W, Matysek M, Chibowski S, Colloids Surf. A: Physicochem. Eng. Asp., 240, 9 (2004)

[10] Hoffmann MR, Martin ST, Choi WY, Bahnemann DW, Chem. Rev., 95(1), 69 (1995)

[11] Fotou GP, Kodas TT, Adv. Mater., 9(5), 420 (1997)

[12] Akhtar MK, Pratsinis SE, Mastrangelo SVR, J. Mater. Res., 9, 1241 (1994)

[13] Gun'ko VM, Zarko VI, Leboda R, Marciniak M, Janusz W, Chibowski S, J. Colloid Interface Sci., 230(2), 396 (2000)

[14] Hadjiivanov KI, Klissurski DG, Chem. Soc. Rev., 25, 61 (1996)

[15] Legrand AP (Ed.), The Surface Properties of Silicas, Wiley, New York, NY, 1998.

[16] Wisniewska M, Terpilowski K, Chibowski S, Urban T, Zarko VI, Gun'ko VM, Powder Technol., 233, 190 (2013)

[17] Wisniewska M, Urban T, Nosal-Wiercinska A, Zarko VI, Gunko VM, Cent. Eur. J. Chem., 12, 476 (2014)

[18] Ndlovu B, Morkel J, Naude N, Miner. Eng., 57, 68 (2014)

[19] Barman AK, Varadachari C, Ghosh K, Geoderma, 53, 45 (1992)

[20] Chin PKF, Mills GL, Chem. Geol., 90, 307 (1991)

[21] Baker MI, Walsh SP, Schwartz Z, Boyan BD, J. Biomed. Mater. Res. Part B, 100, 1451 (2012)

[22] ZwicK MM, J. Appl. Polym. Sci., 9, 2393 (1965)

[23] Janusz W, Electrical Double Layer at Metal Oxide-Electrolyte Interface in ‘Interfacial Forces and Fields Theory and Applications, Dekker M, New York, NY, 1999.