Application of mass titration to the point of zero charge determination

Žalac, Suzana; Kallay, Nikola

doi:10.1016/0021-9797(92)90408-e

Cited by 93 publications

(57 citation statements)

References 19 publications

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“…The values of pH pzc and pH iep of the ZrP sample are very close(within 0.2 pH unit) that may testify that its surface is free of alkali or acid contaminants [34]. The deposited samples of ZrP on fumed TiO 2 show different pHiep for ZrP hydrogel deposited on fumed TiO 2 is 0.2 pH unit below pH pzc , whereas for xerogels in air and xerogels in H 2 O is below pHpzc 0.65 and 0.8 pH unit, respectively.…”

Section: Electrokinetic Propertiesmentioning

confidence: 78%

Synthesis, structure and some properties of zirconium phosphate/oxide support compositions

Sydorchuk¹,

Janusz

Khalameida³

et al. 2011

J Therm Anal Calorim

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Deposited zirconium phosphate samples on the base of silica and titania have been prepared using the sol-gel and mechanochemical methods. Porous structure, phase composition, and electrokinetic parameters have been studied by means of nitrogen adsorption-desorption, XRD, DTA-TG, FTIR, electrophoresis, and potentiometric titration. The compositions possess varied parameters of porous structure, structure of deposited phase, and electrokinetic properties depending on support nature and synthesis conditions.

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Section: Electrokinetic Propertiesmentioning

confidence: 78%

Synthesis, structure and some properties of zirconium phosphate/oxide support compositions

Sydorchuk¹,

Janusz

Khalameida³

et al. 2011

J Therm Anal Calorim

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“…It is clear that much more detailed study on the surface chemistry of SiO2 particles is necessary for a fuller understanding of the nature of instability. No doubt, application of the so-called "mass titration" (Zalac et al 1992, Noh et al 1989 will be useful as a starting point of such studies.…”

Section: Resultsmentioning

confidence: 99%

Instability of SiO₂ Colloids and Sorption of Ca²⁺ Ions

Chan

Fraser

Cheng

et al. 1995

Clays and clay miner.

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Abstract--SiO2 sols were made unstable by addition of Ca 2 + ions. The resulting states of instability were classified as gelation, flocculation, and precipitation by means of observation, by checking the Tyndall effects on the supernatant or suspending solution, as appropriate, and by measuring the apparent densities of flocculated mass. The concentrations of free Ca 2 § ions left in solution were measured by means of a Ca 2+ ion selective electrode. The amounts sorbed onto SiO2 particles were then calculated by material balance. It was found that while the amount sorbed dictates the limit of stability, the SiO2 concentration in the mixture is an important factor deciding the state of instability. Depending on the SiO2 concentration, there were two distinct flocs with the apparent floc density of 6 _+ 1 and 12 _+ 1 mg SiO2/ml.

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“…The pH of water in contact with the media was determined (n = 5) by stirring for 30 min 10 g of powdered LECA or 1.5 g of exfoliated vermiculite in 25 mL of Millipore water and then conducting the potentiometric measurement of pH. The point of zero charge (PZC) was determined (n = 5) using the mass titration method [48,49].…”

Section: Physical and Chemical Characterization Of The Tested Mediamentioning

confidence: 99%

Mechanisms of removal of three widespread pharmaceuticals by two clay materials

Dordio

Miranda

Ramalho

et al. 2017

Journal of Hazardous Materials

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Application of mass titration to the point of zero charge determination

Cited by 93 publications

References 19 publications

Synthesis, structure and some properties of zirconium phosphate/oxide support compositions

Synthesis, structure and some properties of zirconium phosphate/oxide support compositions

Instability of SiO₂ Colloids and Sorption of Ca²⁺ Ions

Mechanisms of removal of three widespread pharmaceuticals by two clay materials

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Application of mass titration to the point of zero charge determination

Cited by 93 publications

References 19 publications

Synthesis, structure and some properties of zirconium phosphate/oxide support compositions

Synthesis, structure and some properties of zirconium phosphate/oxide support compositions

Instability of SiO2 Colloids and Sorption of Ca2+ Ions

Mechanisms of removal of three widespread pharmaceuticals by two clay materials

Contact Info

Product

Resources

About

Instability of SiO₂ Colloids and Sorption of Ca²⁺ Ions