Электрокинетический анализ суспензий наночастиц
| Parent link: | Перспективы развития фундаментальных наук=Prospects of fundamental sciences development: сборник научных трудов XII Международной конференция студентов и молодых ученых, г. Томск, 21-24 апреля 2015 г./ Национальный исследовательский Томский политехнический университет (ТПУ) ; Национальный исследовательский Томский государственный университет (ТГУ) ; Томский государственный архитектурно-строительный университет (ТГАСУ) ; Томский государственный университет систем управления и радиоэлектроники (ТУСУР) ; ред. кол. И. А. Курзина ; Г. А. Воронова ; С. А. Поробова. [С. 1158-1160].— , 2015 |
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| Summary: | Заглавие с экрана The relevance of the work is associated with the need to accumulate data on electrokinetic stability of nanoparticles in solutions used in ecotoxicology. In this work the impact of electroexplosive nanopowder composition (Al, Ni, Zn), the composition of the dispersion medium (HEPES, surface water), and ultrasonic treatment on zeta-potential value was studied using dynamic light scattering technique. It has been shown that negatively charged particles (-16.7...-8.7 mV) changed their charge from negative to positive (11.1...20.5 mV) after ultrasonic treatment in surface water. In HEPES buffer solution the composition of the powder surface is of high importance: zeta-potential value was 26.3 - 20.6 - 0.4 mV for Al, Ni and Zn nanopowders, respectively. |
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2015
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| Serier: | Наноматериалы и нанотехнологии |
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| Online adgang: | http://earchive.tpu.ru/handle/11683/19093 http://www.lib.tpu.ru/fulltext/c/2015/C21/369.pdf |
| Format: | Electronisk Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=613227 |
| Fysisk beskrivelse: | 1 файл(300 Кб) |
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| Summary: | Заглавие с экрана The relevance of the work is associated with the need to accumulate data on electrokinetic stability of nanoparticles in solutions used in ecotoxicology. In this work the impact of electroexplosive nanopowder composition (Al, Ni, Zn), the composition of the dispersion medium (HEPES, surface water), and ultrasonic treatment on zeta-potential value was studied using dynamic light scattering technique. It has been shown that negatively charged particles (-16.7...-8.7 mV) changed their charge from negative to positive (11.1...20.5 mV) after ultrasonic treatment in surface water. In HEPES buffer solution the composition of the powder surface is of high importance: zeta-potential value was 26.3 - 20.6 - 0.4 mV for Al, Ni and Zn nanopowders, respectively. |