Adsorption of poly(acrylic acid) onto the surface of titanium dioxide and the colloidal stability of aqueous suspension

Liufu, Shengcong; Xiao, Huining; Li, Yuping

doi:10.1016/j.jcis.2004.08.075

Cited by 208 publications

(153 citation statements)

References 44 publications

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“…Then 6 mg K 2 S 2 O 8 was added under stirring. The solution was deoxygenated by bubbling dry nitrogen gas for 10 min, then heated to 85 centigrade and kept for 3 h with stirring under protection of N 2 (Chen et al, 2007;Liufu et al, 2005).…”

Section: Preparation Of Paa-tiomentioning

confidence: 99%

Microtribological Behavior of Polymer-Nanoparticle Thin Film with AFM

Li¹,

Shao²,

Yan³

2012

Scanning Probe Microscopy-Physical Property Characterization at Nanoscale

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Section: Preparation Of Paa-tiomentioning

confidence: 99%

Microtribological Behavior of Polymer-Nanoparticle Thin Film with AFM

Li¹,

Shao²,

Yan³

2012

Scanning Probe Microscopy-Physical Property Characterization at Nanoscale

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“…Vallar et al [17] found the optimal the dispersion parameters of the oxide slurries by zeta potential measurements. Liufu et al [18] stated the adsorption of PAA in aqueous suspension onto the 2 Journal of Nanoparticles Ultrasonic wave has been proven as a useful tool to disperse nanoparticles and to eliminate agglomeration in aqueous suspensions [24]. Shock waves caused by collapsing cavitation under ultrasonic irradiation will lead to collisions among particles, whereby the agglomerated particles are eroded and split apart by the collisions [24,25].…”

Section: Introductionmentioning

confidence: 99%

Dispersion of Titanium Oxide Nanoparticles in Aqueous Solution with Anionic Stabilizer via Ultrasonic Wave

Tsai

Kao

et al. 2016

Journal of Nanoparticles

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This paper aims to reveal the effects of odium hexametaphosphate (SHMP) and polyacrylic acid (PAA) on dispersion of TiO 2 (P25) nanopowder in de-ionic water through ultrasonic horn. We characterized TiO 2 suspension by transmission electron microscopy (TEM), dynamic light scattering (DLS), Fourier transform infrared spectroscopy (FTIR), zeta potential, and surface contact angle instruments. As shown in the results, particularly, it were noticed that (1) the SHMP has better dispersion than PAA due to electronegativity effect, resulting in that the average particle size of the dispersed titanium dioxide in de-ionic water was roughly 92 nm, and (2) the zeta potential of TiO 2 suspension with SHMP can be achieved by 54 mV at pH value of 7.7, causing stronger electrostatic repulsion in the suspension solution, compared with PAA.

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“…Moreover, they may modify the surface properties as a consequence of blocking active centers accessible for polymer macromolecules. Explanation of such a phenomena is essential to many areas of human activity, in which adsorption of both natural and synthetic polymers is applied [1][2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Influence of the Electrolyte Type on the Adsorption and Electrokinetic Properties of the Ionic Polyamino Acids – Cr2O3 System

Ostolska¹,

Wiśniewska²

2014

Annales UMCS, Chemia

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The influence of a kind of support electrolyte on the ionic polyamino acids adsorption at the chromium (III) oxide -polymer solution interface was investigated. The NaCl and CaCl 2 were used as the background electrolytes. In order to determine the effect of the electrolyte, the same value of ionic strength of the test solutions were taken. It was proved that formation of intermolecular and intramolecular complexes in the presence of divalent calcium ions is responsible for essential changes in polymer adsorption.Related to the ionic character of polyamino acid two different adsorption behaviours can be observed. The increase of the ASP adsorption amount in the presence of calcium ions may be explained by formation of complexes between the dissociated carboxylic groups and Ca 2+ ions. The opposite situation takes place in the case of polylysine -the application of CaCl 2 results in the dramatic decrease in the polymer adsorption caused by blocking the active sites available for LYS macromolecules. In order to make a comprehensive analysis, the zeta potential and surface charge density measurements were performed taking into account the kind of the background electrolyte. The above-mentioned tests were carried out in the absence and presence of the polyamino acid at two different concentrations -10 and 100 ppm respectively.

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Adsorption of poly(acrylic acid) onto the surface of titanium dioxide and the colloidal stability of aqueous suspension

Cited by 208 publications

References 44 publications

Microtribological Behavior of Polymer-Nanoparticle Thin Film with AFM

Microtribological Behavior of Polymer-Nanoparticle Thin Film with AFM

Dispersion of Titanium Oxide Nanoparticles in Aqueous Solution with Anionic Stabilizer via Ultrasonic Wave

Influence of the Electrolyte Type on the Adsorption and Electrokinetic Properties of the Ionic Polyamino Acids – Cr2O3 System

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