Colloid-chemical properties of suspension electrolytes for obtaining of PbO<sub>2</sub>–TiO<sub>2</sub> composite materials
<p><span style="font-family: Cambria; font-size: small;">The sizes of colloid particles and aggregate stability of nitrate and methanesulfonate suspension electrolytes used for obtaining of </span><span style="font-family: Cambria; font-size: small;">PbO&l...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Oles Honchar Dnipropetrovsk National University
2016-08-01
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| Series: | Vìsnik Dnìpropetrovsʹkogo Unìversitetu: Serìâ Hìmìâ |
| Subjects: | |
| Online Access: | http://chemistry.dnu.dp.ua/article/view/65724 |
| Summary: | <p><span style="font-family: Cambria; font-size: small;">The sizes of colloid particles and aggregate stability of nitrate and methanesulfonate suspension electrolytes used for obtaining of </span><span style="font-family: Cambria; font-size: small;">PbO</span><sub><span style="font-family: Cambria; font-size: xx-small;">2</span></sub><span style="font-family: Cambria; font-size: small;">–TiO</span><sub><span style="font-family: Cambria; font-size: xx-small;">2</span></sub><span style="font-family: Cambria; font-size: small;">composite materials were investigated. It is found, that </span><span style="font-family: Cambria; font-size: small;">TiO</span><sub><span style="font-family: Cambria; font-size: xx-small;">2</span></sub><span style="font-family: Cambria; font-size: small;">colloid solutions at the presence of the big surpluses of plumbum ions and acids are inclined to fast aggregation. The same effect results also introduction in electrolytes of the sodium dodecylsulfate additives. It was established that the adsorption of sodium dodecylsulfate on the TiO</span><sub><span style="font-family: Cambria; font-size: xx-small;">2</span></sub><span style="font-family: Cambria; font-size: small;"> powder had a weak specific nature, as evidenced by the low value of the energy of adsorption interaction. As a result of the conducted researches it was established that aggregately stable suspension electrolytes may be derived from sols of titanium dioxide, which are formed by the hydrolysis of titanium isopropylate. Optimum conditions of obtaining of electrolytes with high aggregative stability were determined: рН</span><span style="font-family: Cambria; font-size: small;"> </span><span style="font-family: Cambria; font-size: small;">~</span><span style="font-family: Cambria; font-size: small;"> </span><span style="font-family: Cambria; font-size: small;">1, concentration Pb(II) salt – </span><span style="font-family: Cambria; font-size: small;">0.1 M</span><span style="font-family: Cambria; font-size: small;">, the size of particles </span><span style="font-family: Cambria; font-size: small;">TiO</span><sub><span style="font-family: Cambria; font-size: xx-small;">2</span></sub><span style="font-family: Cambria; font-size: small;"> sol</span><span style="font-family: Cambria; font-size: small;"> – no more than 14 nm.</span>a</p> |
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| ISSN: | 2306-871X 2313-4984 |