The effects of water-soluble soil components on the size and electrokinetic potential of nanodiamondsстатья

Информация о цитировании статьи получена из Scopus, Web of Science
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 19 августа 2020 г.

Работа с статьей


[1] Kulikova N. A. The effects of water-soluble soil components on the size and electrokinetic potential of nanodiamonds // Eurasian Soil Science. — 2020. — Vol. 53, no. 7. — P. 882–891. An increasing rate of the use of nanoparticles necessitates regarding them as a new class of toxicants. Nanodiamonds hold a special position because of their use in consumer goods, such as fuels and lubricants, which increases the risk of soil pollution with these nanoparticles. The goal of this study was to assess the effects of water-soluble soil components on the electrokinetic potential (zeta-potential) and size of detonation nanodiamonds. Water extracts from 15 zonal soil samples were studied. Addition of nanodiamonds to soil water extracts caused an increase in the weighted average hydrodynamic diameter of nanodiamonds from 24 to 69–683 nm and a drop in absolute zeta-potential from –22 to –(11.2–19.50) mV; an increase in the absolute zeta- potential to –34.5 mV was observed in one case. The highest increase in the size of nanodiamonds was detected in the extracts with high pH values and high Ca/(Fe + Al) ratio. The observed inverse correlation of the zeta-potential of nanodiamonds with the extinction coefficient of the dissolved soil organic matter and the iron content in water extracts suggested that the stability of nanodiamonds could increase in soil solutions in the presence of low molecular weight components of dissolved soil organic matter and at high iron concentrations. Generally, the obtained results allow us to assume that coagulation of nanodiamonds and a decrease in their mobility in soil are due to their interaction with water-soluble soil components. Water extracts from solonetzes are an exception, because the mobility of nanodiamonds in them may increase. [ DOI ]

Публикация в формате сохранить в файл сохранить в файл сохранить в файл сохранить в файл сохранить в файл сохранить в файл скрыть