Влияние рН на седиментационные свойства наночастиц анатаза и рутила; Перспективы развития фундаментальных наук; Т. 2 : Химия
| Parent link: | Перспективы развития фундаментальных наук=Prospects of Fundamental Sciences Development: сборник научных трудов XХII Международной конференции студентов, аспирантов и молодых ученых, г. Томск, 22-25 апреля 2025/ Национальный исследовательский Томский политехнический университет ; под ред. И. А. Курзиной [и др.].— .— Томск: Изд-во ТПУ Т. 2 : Химия.— 2025.— С. 163-165 |
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| Izvleček: | Заглавие с экрана The colloidal behaviour of engineered nanoparticles is greatly influenced by the composition of the dispersion medium. The aim of this study was to determine the influence of the pH on the sedimentation of TiO2 nanoparticles by means of spectrophotometry. We examined anatase and rutile nanoparticles with average size of 18 and 83 nm, respectively. The sedimentation was parametrized by the semi-empirical model equation (R2 > 0.9). It was found that both nanoparticles settled in 10 mM NaCl, while anatase suspensions were more stable than rutile ones. In acidic medium nanoparticles had the highest stability while in alkaline medium – the lowest one. For instance, there were 76, 72 and 47 % of anatase particles left in water at pH 3, 7 and 11 in 180 min. The concentration of residual nanoparticles at infinite time at the pH = 11 was 0 % compared to more than 40 % at pH ≤ 7 Текстовый файл |
| Jezik: | ruščina |
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2025
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| Online dostop: | http://earchive.tpu.ru/handle/11683/132854 |
| Format: | Elektronski Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=682453 |
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| 200 | 1 | |a Влияние рН на седиментационные свойства наночастиц анатаза и рутила |d Influence of pH on sedimentation of anatase and rutile nanoparticles |f У. А. Лиханосова |g науч. рук. А. Ю. Станько |z eng | |
| 300 | |a Заглавие с экрана | ||
| 320 | |a Список литературы: 8 назв | ||
| 330 | |a The colloidal behaviour of engineered nanoparticles is greatly influenced by the composition of the dispersion medium. The aim of this study was to determine the influence of the pH on the sedimentation of TiO2 nanoparticles by means of spectrophotometry. We examined anatase and rutile nanoparticles with average size of 18 and 83 nm, respectively. The sedimentation was parametrized by the semi-empirical model equation (R2 > 0.9). It was found that both nanoparticles settled in 10 mM NaCl, while anatase suspensions were more stable than rutile ones. In acidic medium nanoparticles had the highest stability while in alkaline medium – the lowest one. For instance, there were 76, 72 and 47 % of anatase particles left in water at pH 3, 7 and 11 in 180 min. The concentration of residual nanoparticles at infinite time at the pH = 11 was 0 % compared to more than 40 % at pH ≤ 7 | ||
| 336 | |a Текстовый файл | ||
| 461 | 1 | |0 682243 |t Перспективы развития фундаментальных наук |l Prospects of Fundamental Sciences Development |o сборник научных трудов XХII Международной конференции студентов, аспирантов и молодых ученых, г. Томск, 22-25 апреля 2025 |9 682243 |c Томск |n Изд-во ТПУ |f Национальный исследовательский Томский политехнический университет ; под ред. И. А. Курзиной [и др.] | |
| 463 | 1 | |0 682251 |9 682251 |t Т. 2 : Химия |d 2025 |u conference_tpu-2025-C21_V2.pdf |v С. 163-165 |l Vol. 2 : Chemistry | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a titania nanoparticles | |
| 610 | 1 | |a anatase | |
| 610 | 1 | |a rutile | |
| 610 | 1 | |a sedimentation | |
| 610 | 1 | |a suspension | |
| 610 | 1 | |a spectrophotometry | |
| 700 | 1 | |a Лиханосова |b У. А. | |
| 702 | 1 | |a Станько |b А. Ю. |c специалист в области нанотехнологий и наноматериалов |c доцент Томского политехнического университета, кандидат технических наук |f 1978- |g Анна Юрьевна |4 727 | |
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