Determination of isoelectric points of metals and metallic alloys by adhesion of latex particles
Нема приказа
Аутори
Lefevre, GregoryCerovic, Ljiljana
Milonjić, Slobodan K.
Fedoroff, Michel
Finne, Joergen
Jaubertie, Anne
Чланак у часопису
Метаподаци
Приказ свих података о документуАпстракт
A set-up and a method were developed to determine the isoelectric point of metals and metallic alloys samples (stainless steels, inconel, zircaloy, aluminum and dural) by measuring the adhesion rate of negative latex particles. The concentration of polystyrene spheres with surface carboxylate groups (initially 0.5-1 mg L(-1)) in contact with metallic samples was measured as a function of pH and time by turbidimetry. The simulation of measurements by a model predicting the sticking coefficient based on DLVO theory was used for the determination of the isoelectric point from experimental results. It was found that the isoelectric points of aluminum (8.7) and dural (9.1), treated by boiling water, are close to those of hydrated aluminum oxides powders. For stainless steels, inconel and zircaloy, the values of isoelectric points were found to be between 2.4 and 3.0, far below the isoelectric points measured for metallic oxides constituting the alloy surface layer. This difference was expla...ined by two different charging mechanisms: (1) deprotonation of hydroxyl groups on the surface of the metal oxide in suspension or as a thick layer. (2) adsorption of hydroxide ions on a metal surface covered by a thin oxide layer, as observed on hydrophobic surfaces. (C) 2009 Elsevier Inc. All rights reserved.
Кључне речи:
Turbidimetry / FoulingИзвор:
Journal of Colloid and Interface Science, 2009, 337, 2, 449-455Финансирање / пројекти:
- French National Research Agency (ANR) [ANR-05-BLAN-0124-01], Ministry of Science of the Republic of Serbia [142004]
DOI: 10.1016/j.jcis.2009.05.005
ISSN: 0021-9797
PubMed: 19573874
WoS: 000268740500019
Scopus: 2-s2.0-67651151037
Колекције
Институција/група
VinčaTY - JOUR AU - Lefevre, Gregory AU - Cerovic, Ljiljana AU - Milonjić, Slobodan K. AU - Fedoroff, Michel AU - Finne, Joergen AU - Jaubertie, Anne PY - 2009 UR - https://vinar.vin.bg.ac.rs/handle/123456789/3766 AB - A set-up and a method were developed to determine the isoelectric point of metals and metallic alloys samples (stainless steels, inconel, zircaloy, aluminum and dural) by measuring the adhesion rate of negative latex particles. The concentration of polystyrene spheres with surface carboxylate groups (initially 0.5-1 mg L(-1)) in contact with metallic samples was measured as a function of pH and time by turbidimetry. The simulation of measurements by a model predicting the sticking coefficient based on DLVO theory was used for the determination of the isoelectric point from experimental results. It was found that the isoelectric points of aluminum (8.7) and dural (9.1), treated by boiling water, are close to those of hydrated aluminum oxides powders. For stainless steels, inconel and zircaloy, the values of isoelectric points were found to be between 2.4 and 3.0, far below the isoelectric points measured for metallic oxides constituting the alloy surface layer. This difference was explained by two different charging mechanisms: (1) deprotonation of hydroxyl groups on the surface of the metal oxide in suspension or as a thick layer. (2) adsorption of hydroxide ions on a metal surface covered by a thin oxide layer, as observed on hydrophobic surfaces. (C) 2009 Elsevier Inc. All rights reserved. T2 - Journal of Colloid and Interface Science T1 - Determination of isoelectric points of metals and metallic alloys by adhesion of latex particles VL - 337 IS - 2 SP - 449 EP - 455 DO - 10.1016/j.jcis.2009.05.005 ER -
@article{ author = "Lefevre, Gregory and Cerovic, Ljiljana and Milonjić, Slobodan K. and Fedoroff, Michel and Finne, Joergen and Jaubertie, Anne", year = "2009", abstract = "A set-up and a method were developed to determine the isoelectric point of metals and metallic alloys samples (stainless steels, inconel, zircaloy, aluminum and dural) by measuring the adhesion rate of negative latex particles. The concentration of polystyrene spheres with surface carboxylate groups (initially 0.5-1 mg L(-1)) in contact with metallic samples was measured as a function of pH and time by turbidimetry. The simulation of measurements by a model predicting the sticking coefficient based on DLVO theory was used for the determination of the isoelectric point from experimental results. It was found that the isoelectric points of aluminum (8.7) and dural (9.1), treated by boiling water, are close to those of hydrated aluminum oxides powders. For stainless steels, inconel and zircaloy, the values of isoelectric points were found to be between 2.4 and 3.0, far below the isoelectric points measured for metallic oxides constituting the alloy surface layer. This difference was explained by two different charging mechanisms: (1) deprotonation of hydroxyl groups on the surface of the metal oxide in suspension or as a thick layer. (2) adsorption of hydroxide ions on a metal surface covered by a thin oxide layer, as observed on hydrophobic surfaces. (C) 2009 Elsevier Inc. All rights reserved.", journal = "Journal of Colloid and Interface Science", title = "Determination of isoelectric points of metals and metallic alloys by adhesion of latex particles", volume = "337", number = "2", pages = "449-455", doi = "10.1016/j.jcis.2009.05.005" }
Lefevre, G., Cerovic, L., Milonjić, S. K., Fedoroff, M., Finne, J.,& Jaubertie, A.. (2009). Determination of isoelectric points of metals and metallic alloys by adhesion of latex particles. in Journal of Colloid and Interface Science, 337(2), 449-455. https://doi.org/10.1016/j.jcis.2009.05.005
Lefevre G, Cerovic L, Milonjić SK, Fedoroff M, Finne J, Jaubertie A. Determination of isoelectric points of metals and metallic alloys by adhesion of latex particles. in Journal of Colloid and Interface Science. 2009;337(2):449-455. doi:10.1016/j.jcis.2009.05.005 .
Lefevre, Gregory, Cerovic, Ljiljana, Milonjić, Slobodan K., Fedoroff, Michel, Finne, Joergen, Jaubertie, Anne, "Determination of isoelectric points of metals and metallic alloys by adhesion of latex particles" in Journal of Colloid and Interface Science, 337, no. 2 (2009):449-455, https://doi.org/10.1016/j.jcis.2009.05.005 . .