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characterization of kaolinite zeta potential for interpretation

Sorption of phosphate onto mesoporous γ-alumina studied with in-situ ...

A support for this interpretation of the sorption mechanism at pH 9.0 is the results from zeta potential measurements using the electrophoresis method. The results of the zeta potential of the synthesized mesoporous γ-Al 2 O 3 in the absence and presence of phosphates as a function of pH are presented in Figure 8. These measurements showed ...

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Stirring time effect of silver nanoparticles prepared in glutathione ...

Zeta potential is an essential parameter for characterization of stability in aqueous Ag-NPs suspensions. A minimum of ±30 mV zeta potential values is required for indication of stable nano-suspension [ 42 - 44 ]. At the GSH and [Ag (GSH)] after 72 h of stirring time zeta potential were equals to 21.5 ± 1.8 and 39.3 ± 3.5 mV.

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On the Kaolinite Floc Size at the Steady State of Flocculation ... - PLOS

The grain size distribution of the primary particles of the kaolinite was analysed using a laser particle analyser (Horiba LA-920). The median size, d50, was 5.07 μm, with a range of .59-23 μm, and d90: d70: d30: d10 in the cumulative particle-size distribution was 10.27 μm: 6.89 μm: 3.36 μm: 1.70 μm.

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Characterization of the electrical double layer of montmorillonite ...

Synthesis and characterization of adsorbents for the elimination of nitrates and bromates from water aiming to develop a continuous oxyanion water elimination system. ... ion species and pH on the zeta potential and electrokinetic charge density of montmorillonite. ... A Basis for the Interpretation of Soil Physical Behavior. 1994,,, 121-183 ...

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Zeta Potential of a Natural Clayey Sandstone Saturated With Carbonated ...

The zeta potential is a measure of electric potential at the mineral-electrolyte interfaces. The zeta potential of natural sandstones depends on mineralogy, electrolyte pH, concentration, composition, amount of dissolved CO 2, and temperature.We report for the first time the zeta potential measured on clayey sandstone comprising quartz, kaolinite, illite, albite and microcline saturated with ...

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A Semi-Empirical Model to Estimate Maximum Floc Size in a Turbulent ...

At pH 8, the zeta potential of this ultrafine kaolin was −27 mV in milli-Q water and −10 mV in tap water. The presence of divalent cations Ca 2+ and Mg 2+ in tap water decreases the zeta potential. The flocculant used, SNF Floerger AN 934 MPM, is an anionic acrylamide-sodium acrylate copolymer of 35% anionicity and medium molecular weight.

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Geochemical and mineralogical characterization of smectites from the ...

Thicknesses of smectite-rich beds range from 10 to 50 m, whereas thicknesses of palygorskite-rich beds range from 2 to 6 m, with a maximum thickness of 30 m identified in one deposit (Harami). The smectite generally occurs in the deeper parts and at the periphery of the deposits, whereas the palygorskite occurs at the centre and near the surface.

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Composition And Properties Of Drilling And Completion Fluids [PDF ...

5. Prevent the inflow of fluids—oil, gas, or water—from permeable rocks penetrated. 6. Form a thin, low-permeability filter cake which seals pores and other openings in formations penetrated by the bit, 7. Assist in the collection and interpretation of information available from drill cuttings, cores, and electrical logs.

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Anionic polyacrylamide as a substance strengthening the Pb(II ...

where ΔV—the difference in the base volume added to a suspension and a supporting electrolyte solution that leads to the specific pH value, c—the base concentration, F—the Faraday constant, m—the solid mass in the suspension, S—the solid surface area.. Kaolinite zeta potential (ζ) was determined based on electrophoretic mobility of particles measured using Zetasizer Nano ZS ...

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Surface Characteristics of Kaolinite and Other Selected Two Layer ...

Planar structures of kaolinite and antigorite are compared to the, compositionally equivalent, tubular structures of halloysite and chrysotile with respect to the pH dependency of zeta potential as...

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Water Soluble Polymer Flocculants: Synthesis, Characterization, and ...

They observed that PAM-HADE was a better flocculant, but the authors attributed the enhanced performance to two reasons: first, the cationic terminal groups in the hyperbranched polymer were better exposed in solution, favoring adsorption on the kaolinite surfaces through more points of contact; second, the hindrance repulsion in the hyperbranch...

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Characterization of Kaolinite ζ Potential for Interpretation of ...

We show here that wettability of kaolinite can be characterized via ζ potential measurement and modeling. A simplified Gouy−Stern−Grahame model and an oxide site binding model can be used to...

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RESEARCH Open Access Altered characteristics of silica nanoparticles in ...

2, -SH groups and coated with polyvinylpyrroli- done (PVP), and characterized using a variety of physico- chemical methods including zeta potential measurements, dynamic light scattering (DLS), transmission electron mi- croscopy (TEM), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), secondary ion mass spectroscopy-tim...

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Binary dyes adsorption onto novel designed magnetic clay-biopolymer ...

The morphological characterization revealed the successful preparation of non-rigid and plate-like CKAlFe adsorbent with the microporosity structure, in which the κ-carrageenan forms the amorphous...

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Investigation of Subterranean Termites Nest Material Composition ...

First, they are always the most abundant caste and are fully responsible for the construction and repair of the passive defensive structures. Second, they indeed actively participate in defence [ 33, 34 ]. The research on aggression of the termite worker indicates the flexible mechanisms of defence of colony which depend on the social context.

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Characterization of certain Nigerian clay minerals for water ...

The zeta potential is the key indicator of the stability of colloidal dispersions. ... and the interpretation is based on these three energy levels. ... Bantignies J.L., Cartier Dit Moulin C., Dexpert H. 1997. Wettability Contrasts in Kaolinite and Illite Clays : Characterization by Infrared and X-ray Absorption Spectroscopies. [Google Scholar ...

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Effect of silicate on the sorption properties of kaolinite: removal of ...

Zeta potential of kaolinite suspensions Understanding the surface charge characteristics of kaolinite suspensions is favorable for the study of the mechanism of the sorption of radionuclides. The zeta potential, reflecting relative movement of clay particles and water, could provide information for electrical potentials of clay surfaces [ 26 ].

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Influence of Polyelectrolytes and Other Polymer Complexes On ... - Scribd

In the characterization of clay mineral sepa ... fluids in a single-screw extruder with pressure back flow, Polym. Eng. Sci. 36 Measurement and interpretation of electrokinetic ... [99] A.S. Michaels, J.C. Bolger, Particle interactions in aqueous kaolinite [65] R.J. Hunter, Zeta Potential in Science: Principles and Applications ...

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Hero King Zeta 1991 | FanFiction

Hero King Zeta 1991 is a fanfiction author that has written 19 stories for Naruto, Ghost Rider, Anime X-overs, Powerpuff , Family Guy, Kingdom Hearts, Samurai Jack, Grim Tales, Gurren Lagann, Ben 10, RWBY, and Dragon Ball.

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zeta zeta potential: Topics by Science.gov

A gene variation of 14-3-3 zeta isoform in rat hippocampus.. PubMed. Murakami, K; Situ, S Y; Eshete, F. 1996-11-14. A variant form of 14-3-3 zeta was isolated from the rat hippocampal cDNA library. The cloned cDNA is 1687 bp in length and it contains an entire ORF (nt = 63-797) with 245 amino acids that is characteristic to 14-3-3 zeta subtype. By comparing with reported sequences of 14-3-3 ...

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Yeliz Yukselen-Aksoy - Academia.edu

Zeta potential of kaolinite in the presence of alkali, alkaline earth and hydrolyzable metal ions, by Yeliz Yukselen-Aksoy, Electrokinetic remediation is one of the promising subsurface clean up techniques whose efficiency is directly affected by the zeta potential of clay minerals.

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Preparation and characterization of nano-galvanic bimetallic ... - Nature

Characterizations, The morphology and surface structure of different materials, including talc, Talc-nZVI/1Sn, Talc-nZVI/4Sn, and Talc-nZVI/6Sn before and after reaction with Cr (VI) were analyzed...

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Rice University Consortium for Processes in Porous Media

Fluid-Rock Characterization for NMR Well Logging and Special Core Analysis. 1st Annual Report - November 2005 ... (2017), " Surface complexation modeling of calcite zeta potential measurements in brines with mixed potential determining ions (Ca2+, CO32−, Mg2+, SO42−) ... Kaolinite Zeta Potential by Dr. Tianmin Jiang, et al. ...

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IOP Conference Series: Earth and Environmental Science, Volume 1003 ...

FT-IR and zeta potential test was done to explain the swelling inhibition mechanisms. Moreover, XRD test was conducted for the characterization of bentonite (swelling clay). 2 wt.% BMIMCl reduced the swelling rate of bentonite by 19.38% while the conventional and mostly used inhibitor, 3 wt.% KCl reduced 13.84% compared with distilled water.

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Characterization of the surface charge distribution on kaolinite ...

(a) A schematic of the sample system consisting of kaolinite particles adsorbed on mica and sapphire substrate exposing both silica and gibbsite facets respectively. Color code: red-negatively charged surface, blue-positively charged surface (different shades of red and blue colors show different magnitude of charges).

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Adsorption of dissolved aluminum on sapphire-c and kaolinite ...

A possible interpretation of the experimental results could be that at low aluminum concentrations adatoms of aluminum (we will refer to adsorbed mineral constituents as adatoms) can form at the sapphire basal plane, which can be rather easily removed. ... Zeta-potential of kaolinite as a function of pH in 0.1 mM NaCl with and without added ...

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A Parametric Comparative Study of Electrocoagulation and Coagulation of ...

a parametric comparative study of electrocoagulation and coagulation of aqueous suspensions of kaolinite and quartz powders a thesis submitted to

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(PDF) Zeta Potential of Kaolinite in the Presence of Alkali, Alkaline ...

To determine the factors affecting the zeta potential, in turn, electrokinetic remediation, the zeta potential of kaolinite is determined usingelectrophoretic mobility in the salt and heavy metals...

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Enhanced surface activity of activated carbon by surfactants synergism

The zeta potential results unveiled the positive charge density enhancement in the mixed surfactants system. ... Song et al. 43 reported a similar interpretation for surface modification of coconut-based ... H.-C. M. J. Kaolinite Properties and Characterization of HDTMA-Cl Modified Jordanian Kaolinite and Its Use in Removal of Aniline from ...

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Synthesis and Characterization of Sodalite and Cancrinite from Kaolin

microscopy, thermogravimetry, and Zeta potential. The most pure sodalite phase was obtained at 230 °C, with the kaolin/NaOH ratio of 1:1, low concentration of Na 2CO 3 and smaller time of synthesis (30 min). On the other hand, for the synthesis of cancrinite phase at 230 °C, it was necessary to use kaolin heated at 900 °C,

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Russia | SPE - Society of Petroleum Engineers

As of today, more than 480 CSS wells have been operated with the assistance of CO2. The oil/steam ratio in those application well groups has increased by 7%, while the operating cost has decreased by 7.9%. Three SF well groups assisted with hot air have been tested. The incremental oil production was more than 60%.

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Rheological characterization of potassium carbonate deep eutectic ...

Zeta potential Zeta potential is an important parameter in dictating the stability of the dispersion in any colloidal. The magnitude of the zeta potential shows the electrostatic repulsion between same sizes particles in any colloidal.

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Full article: Pristine point of zero charge (p.p.z.c.) and zeta ...

The pristine point of zero charge (p.p.z.c) and zeta potential as a function of pH of boehmite oxide/hydroxide (α-Al2O3·H2O) have been determined for three filter media. ... at 87 K and high-resolution TEM images would be indispensable to verify the above analysis of ultramicroporous character of the coating because the micropore analysis ...

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Frontiers | Design of Sustainable Biomaterial Composite Adsorbents for ...

Kaolinite differs due to its aluminosilicate structure, as follows: -OH groups (3,600-3,700 cm −1 ), Si-O (1,000-1,150 cm −1 ), Al-OH (900-950 cm −1 ), Si-O-Al (750-800 cm −1 ), and Si-O/Si-O-Al (400-550 cm −1 ). Signals for the lignins are mostly overlapping with the IR bands for hemicellulose.

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Influence of temperature on electrical conductivity on ... - GEOPHYSICS

Using this idea, the temperature dependence of μ DL is extracted using data on dc electrical conductivity of shaly sands (σ) containing varying amounts of clay. The mobility of Na + counter‐ions is found to vary approximately linearly with temperature. This explicit relationship is tested by comparing the predicted temperature dependence ...

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Hydration of cubic tricalcium aluminate in the presence of calcined ...

In cementitious systems, the zeta potential increases with the Ca/SO 4 ratio. 68 Liu et al. 24 emphasize the availability of both Ca and SO 4 for inhibiting the C 3 A dissolution. In the present work, C 3 A and CaSO 4 are the only soluble Ca-sources, resulting in a lack of Ca ions in the pore solution compared to true cementitious pore solutions.

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Characterization of Surface Forces in The Presence of Low Molecular ...

i ABSTRACT Low molecular weight (LMW) carboxylic acids are known to cause significant changes to the rheological behaviour of colloidal dispersions.

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Anomalous Zeta Potential Trends in Natural Sandstones

Understanding of the zeta potential is important for a number of reasons. For example, the zeta potential is an important control on how the mineral surfaces chemically react with fluids in the pore space. Moreover, when water flows through the rock, the zeta potential gives rise to electrical signals that can be used to monitor the flow.

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Tracer Electrophoresis. II. The Mobility of the Micelle of Sodium ...

Tracer Electrophoresis. II. The Mobility of the Micelle of Sodium Lauryl Sulfate and its Interpretation in Terms of Zeta Potential and Charge. D. Stigter; and ; K. J. Mysels; Cite this: J. Phys ... The significance of electrokinetic characterization for interpreting interfacial phenomena at planar, macroscopic interfaces. ... Zeta potential of ...

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Electrophoresis and zeta potential of kaolinite - ScienceDirect

Electrophoresis and zeta potential of kaolinite. The effects of such parameters as preparation technique, pH, and sodium chloride concentration on the electrophoretic mobility of sodium kaolinite are examined using the single-particle microelectrophoresis technique. Cylindrical microelectrophoresis cells are shown to give misleading results and ...

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