Aggregation of manufactured nanoparticles in aqueous solutions of mono- and bivalent electrolytes

Aggregation of manufactured nanoparticles in aqueous solutions of mono- and bivalent electrolytes

Бібліографічні деталі
Parent link:Journal of Nanoparticle Research: Scientific Journal
Vol. 17.— 2015.— [17:211 [8 p.]
Співавтори: Национальный исследовательский Томский политехнический университет (ТПУ) Институт физики высоких технологий (ИФВТ) Кафедра общей и неорганической химии (ОНХ), Национальный исследовательский Томский политехнический университет (ТПУ) Институт физики высоких технологий (ИФВТ) Кафедра технологии силикатов и наноматериалов (ТСН)
Інші автори: Godymchuk (Godimchuk) A. Yu. Anna Yuryevna, Karepina E. E. Elizaveta Evgenjevna, Yunda E. N. Elena Nikolaevna, Bozhko I. A. Irina Aleksandrovna, Lyamina G. V. Galina Vladimirovna, Kuznetsov D. V. Denis Valerjevich, Gusev A. A. Aleksandr Anatoljevich, Kosova N. I. Nataljya Ivanovna
Резюме:Title screen
The study of biological activity of manufactured nanopowders lacks experimental data concerning the influence of electrolyte nature and content on the degree of nanoparticles aggregation in aqueous suspensions. Using the dynamic light scattering technique, it has been shown how the ionic strength (0.0001…100 mM) of mono- and bivalent electrolyte (Na+, Ca2+) solutions influences the size and zeta-potential of Al (90 nm) and Al2O3 (30 nm) nanoparticles. It has been determined that the aggregative effect of counterions decreases when their charge increases. The weaker influence of Ca2+ concentration on the aggregation of both nanoparticles has been demonstrated. For Al2O3 nanoparticles, the stronger influence of Na+ concentration on the size and charge of aggregates has been observed.
Режим доступа: по договору с организацией-держателем ресурса
Мова:Англійська
Опубліковано: 2015
Предмети:
электронный ресурс
труды учёных ТПУ
nanoparticles
aggregation
aqueous suspensions
aluminium
aluminium oxides
Онлайн доступ:http://dx.doi.org/10.1007/s11051-015-3012-7
Формат: Електронний ресурс Частина з книги
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=644146
Опис
Резюме:Title screen
The study of biological activity of manufactured nanopowders lacks experimental data concerning the influence of electrolyte nature and content on the degree of nanoparticles aggregation in aqueous suspensions. Using the dynamic light scattering technique, it has been shown how the ionic strength (0.0001…100 mM) of mono- and bivalent electrolyte (Na+, Ca2+) solutions influences the size and zeta-potential of Al (90 nm) and Al2O3 (30 nm) nanoparticles. It has been determined that the aggregative effect of counterions decreases when their charge increases. The weaker influence of Ca2+ concentration on the aggregation of both nanoparticles has been demonstrated. For Al2O3 nanoparticles, the stronger influence of Na+ concentration on the size and charge of aggregates has been observed.
Режим доступа: по договору с организацией-держателем ресурса
DOI:10.1007/s11051-015-3012-7

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