Modification of Surface Properties of Colloidal Suspensions of NixOy-SiO2 Mixed Oxides with Different Ni Contents by the Adsorption Layers of Poly(Vinyl Alcohol)
| العنوان: | Modification of Surface Properties of Colloidal Suspensions of NixOy-SiO2 Mixed Oxides with Different Ni Contents by the Adsorption Layers of Poly(Vinyl Alcohol) |
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| المؤلفون: | Małgorzata Wiśniewska, Magdalena Medykowska, Teresa Urban, Tomasz Klepka, Katarzyna Szewczuk-Karpisz, V.M. Bogatyrov, Gracja Fijałkowska, Agnieszka Nosal-Wiercińska, Stanisław Chibowski |
| المصدر: | Journal of Cluster Science. 32:1213-1221 |
| بيانات النشر: | Springer Science and Business Media LLC, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | Vinyl alcohol, Materials science, Nickel oxide, chemistry.chemical_element, General Chemistry, Condensed Matter Physics, Biochemistry, Electrophoresis, Nickel, chemistry.chemical_compound, Adsorption, chemistry, Chemical engineering, Mixed oxide, General Materials Science, Surface charge, Solubility |
| الوصف: | The adsorption and electrokinetic properties of hybrid silica materials composed of nickel and silicon oxides (NixOy-SiO2), characterized by different contents of nickel oxide (from 0.5 to 3 mmol/g SiO2), were examined. These solids were also modified by poly(vinyl alcohol) to change their surface characteristics. The polymer is non-toxic and very well soluble in water. Due to incomplete hydrolysis of the polymer acetate groups, its macromolecules become negatively charged. The limited range of studied pH (6–10) resulted from high solubility of nickel oxide at more acidic pH values. The spectrophotometric, surface charge and electrophoretic measurements indicated that PVA exhibits higher adsorption affinity for the surfaces of mixed oxide with a larger content of nickel in its structure. Moreover, the presence of polymeric layers on the solid surface influences considerably the structure of electrical double layer formed at the mixed oxide-aqueous solution interface. |
| تدمد: | 1572-8862 1040-7278 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::e627c3551ba414543d610a1a20befdd5 https://doi.org/10.1007/s10876-020-01885-6 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi...........e627c3551ba414543d610a1a20befdd5 |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 15728862 10407278 |
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