The point of zero charge of phyllosilicate minerals using the Mular–Roberts titration technique

Álvarez-Silva, M.; Uribe‐Salas, A.; Mirnezami, M.; Finch, J.A.

doi:10.1016/j.mineng.2009.11.013

Cited by 87 publications

(43 citation statements)

References 24 publications

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“…Apparent PZC values of serpentine and chlorite obtained by a salt addition (Mular-Roberts) method are reported in [12]. This method is based on the assumption that the titration curves obtained at different ionic strengths have a common intersection point CIP, which is true for metal oxides, but not necessarily for serpentine or chlorite.…”

Section: Examples Of Erroneous And/or Misleading Results Reported In mentioning

confidence: 99%

The pH-dependent surface charging and points of zero charge

Kosmulski

2011

Journal of Colloid and Interface Science

411

197

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The points of zero charge (PZC) and isoelectric points (IEP) from the recent literature are discussed. This study is an update of the previous compilation [M. Kosmulski, Surface Charging and Points of Zero Charge, CRC, Boca Raton, FL, 2009] and of its previous update [J. Colloid Interface Sci. 337 (2009) 439]. In several recent publications, the terms PZC/IEP have been used outside their usual meaning. Only the PZC/IEP obtained according to the methods recommended by the present author are reported in this paper, and the other results are ignored. PZC/IEP of albite, sepiolite, and sericite, which have not been studied before, became available over the past 2 years.

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Section: Examples Of Erroneous And/or Misleading Results Reported In mentioning

confidence: 99%

The pH-dependent surface charging and points of zero charge

Kosmulski

2011

Journal of Colloid and Interface Science

411

197

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“…Charge on this surface predominantly arises from lattice defects or incongruent dissolution (Alvarez-Silva et al, 2010). In contrast, the edge of a chlorite crystal -e.g.…”

Section: Discussionmentioning

confidence: 99%

Mineral-templated growth of natural graphite films

Zuilen

Fliegel²,

Wirth

et al. 2012

Geochimica et Cosmochimica Acta

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“…The inaccuracy of the zeta potential method for clay minerals has been demonstrated through the deviation of the i.e.p and the p.z.c. These values coincide for isotropically charged particles such as quartz, but differ for anisotropically charged particles [26,27].…”

Section: Surface Charge Characterisationmentioning

confidence: 99%

Characterisation of kaolinite colloidal and flow behaviour via crystallinity measurements

Ndlovu¹,

Farrokhpay²,

Forbes³

et al. 2015

Powder Technology

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Please cite this article as: Bulelwa Ndlovu, Saeed Farrokhpay, Elizaveta Forbes, Dee Bradshaw, Characterisation of kaolinite colloidal and flow behaviour using its crystallinity measurements, Powder Technology (2014Technology ( ), doi: 10.1016Technology ( /j.powtec.2014 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. A C C E P T E D M A N U S C R I P T ACCEPTED MANUSCRIPT A C C E P T E D M A N U S C R I P T ACCEPTED MANUSCRIPT AbstractThis study evaluates the possibility of predicting colloidal and flow behaviour of kaolinite suspensions by measuring kaolinite crystallinity. The Hinckley index of different samples was calculated from XRD spectra as an indicator of the crystallinity. Kaolinite samples with a high Hinckley index showed a defined platy morphology with smooth surfaces of low surface area, while progressively roughened basal planes with prevalent broken edges were observed in kaolinite samples of lower Hinckley indices. Despite similarity in the elemental composition, the kaolinite samples present different surface charge properties, likely due to variations in exposed pH dependent edge sites. Poorly crystallised kaolinite samples were characterised by higher yield stresses and viscosities. This study highlights the importance of crystallinity characterisation towards predicting colloidal behaviour and flow characteristics of kaolinite suspensions.

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The point of zero charge of phyllosilicate minerals using the Mular–Roberts titration technique

Cited by 87 publications

References 24 publications

The pH-dependent surface charging and points of zero charge

The pH-dependent surface charging and points of zero charge

Mineral-templated growth of natural graphite films

Characterisation of kaolinite colloidal and flow behaviour via crystallinity measurements

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