Influence of solution pH on stability of aluminum oxide suspension in presence of polyacrylic acid

Chibowski, S.; Wiśniewska, Małgorzata; Urban, Teresa

doi:10.1007/s10450-010-9243-0

Cited by 37 publications

(14 citation statements)

References 9 publications

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“…With an increase in the concentration of ethionine, the peak does not change its position significantly, but its height increases. The surface tension values (Table 2) at potential of zero charge γ z decrease, which also confirms the phenomenon of ethionine adsorption [21][22][23][24][25] on the electrode. Therefore, it can be stipulated that active Bi(III)-ethionine complexes are certainly located inside the adsorptive layer (Fig.…”

Section: Resultssupporting

confidence: 75%

The Catalytic Impact of Ethionine on the Multi-Step Electroreduction of Bi(III) Ions in Chlorates(VII) Solutions

Nosal‐Wiercińska

Grochowski

2017

Electrocatalysis

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It was concluded that the presence and the protonation of the ethionine (Et) have effects on the rate of the multistep process of Bi(III) electroreduction in the 2 mol dmchlorates(VII). The catalytic activity of ethionine increases with increasing amounts of NaClO 4 in the basic electrolyte solution. Increased amounts of HClO 4 in chlorate(VII) solutions causes a decreased rate of the Bi(III) ion electroreduction process in the presence of ethionine. This confirms the assumption on the variety of active complexes mediating the passage of electrons.

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Section: Resultssupporting

confidence: 75%

The Catalytic Impact of Ethionine on the Multi-Step Electroreduction of Bi(III) Ions in Chlorates(VII) Solutions

Nosal‐Wiercińska

Grochowski

2017

Electrocatalysis

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“…In such a case, solid surface modification is necessary. Of great variety of techniques; plasma modification (Kuraica et al 2003;Punga and Borcia 2013), adsorption of different low-and high-molecular compounds (Chibowski et al 2010;Nosal-Wiercińska 2012, 2013Wiśniewska et al 2013a;Nosal-Wiercińska 2014) and synthesis of mixed oxides (Maliyekkal et al 2006;Wu et al 2010) acquired the most significant importance. Appropriate modification leads to obtaining solids of the properties desired in various ecological and technological processes (Kaźmierczak et al 2013;Nowicki et al 2014Nowicki et al , 2015a.…”

Section: Introductionmentioning

confidence: 99%

Impact of poly(vinyl alcohol) adsorption on the surface characteristics of mixed oxide Mn x O y –SiO2

et al. 2015

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The poly(vinyl alcohol) (PVA) influence on the adsorption and electrokinetic properties of the mixed oxide Mn x O y -SiO 2 /polymer solution system was examined. Three oxides differing with the Mn x O y contents were applied (0.2; 1 and 3 mmol/g SiO 2 , respectively). The PVA with the molecular weight 100 kDa was characterized with the acetate groups content equal to 14 %. Adsorption, solid surface charge and zeta potential measurements were made as a function of solution pH (3-10). The obtained results showed that the PVA adsorption amount strongly depends on not only the solution pH, but also manganese oxide content on the mixed oxide surface. The higher solution pH value (or Mn x O y content) is, the higher polymer adsorption is obtained. The PVA addition to the solid suspension causes minimal changes of the mixed oxide surface charge density, whereas the zeta potential of solid particles increases significantly in the polymer presence.

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“…This fact can be explained by the presence of the negatively charged groups from the CMC and SDS molecules or from the polysaccharide/surfactant complexes: CMC/ SDS, CMC/polyethylene glycol p-(1,1,3,3-tetramethylbutyl)-phenyl ether, CMC/SDS/polyethylene glycol p-(1,1,3,3-tetramethylbutyl)-phenyl ether. These negative groups are not linked with the surface but present in the compact part of the electric double layer (Chibowski et al 2004(Chibowski et al , 2010. Another observation is that there is no significant difference between the surface charge density of MnO 2 in the presence of different surfactants.…”

Section: Resultsmentioning

confidence: 88%

Adsorption and elektrokinetic properties of the system: carboxymethylcellulose/manganese oxide/surfactant

Grządka

Chibowski

2011

Cellulose

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The adsorption of carboxymethylcellulose (CMC) in the presence of the surfactants: anionic SDS, nonionic polyethylene glycol p-(1,1,3,3-tetramethylbutyl)-phenyl ether (Triton X-100) and their mixtures SDS/polyethylene glycol p-(1,1,3,3-tetramethylbutyl)-phenyl ether with different molar ratios (1:1; 1:3 and 3:1) from the electrolyte solutions (NaCl, CaCl 2 ) on the manganese dioxide surface (MnO 2 ) was studied. In every measured system the increase of CMC adsorption in the presence of surfactants was observed. This increase was the smallest in the presence of SDS, a bit larger in the presence of polyethylene glycol p-(1,1,3,3-tetramethylbutyl)-phenyl ether and the largest when the mixtures of SDS/polyethylene glycol p-(1,1,3,3-tetramethylbutyl)-phenyl ether were used. Among the measured mixtures, the mixture of SDS/polyethylene glycol p-(1,1,3,3-tetramethylbutyl)-phenyl ether with the molar ratio 1:3 caused the largest increase of CMC adsorption amount. These results are a consequence of formation of complexes between the carboxymethylcellulose macromolecules and the surfactant molecules. In order to determine the electrokinetic properties of the system the surface charge density of MnO 2 and the zeta potential measurements were conducted in the presence of the CMC macromolecules and the surfactants. The obtained data showed that the adsorption of CMC or CMC/surfactants complexes on the manganese dioxide surface strongly influences the structure of the electric double layer MnO 2 /electrolyte solution.

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Influence of solution pH on stability of aluminum oxide suspension in presence of polyacrylic acid

Cited by 37 publications

References 9 publications

The Catalytic Impact of Ethionine on the Multi-Step Electroreduction of Bi(III) Ions in Chlorates(VII) Solutions

The Catalytic Impact of Ethionine on the Multi-Step Electroreduction of Bi(III) Ions in Chlorates(VII) Solutions

Impact of poly(vinyl alcohol) adsorption on the surface characteristics of mixed oxide Mn x O y –SiO2

Adsorption and elektrokinetic properties of the system: carboxymethylcellulose/manganese oxide/surfactant

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