Anna Yu. Romanchuk

Lomonosov Moscow State University

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Stepan N. Kalmykov

Lomonosov Moscow State University

Anna Semenkova

Lomonosov Moscow State University

V. V. Krupskaya

Institute of Geology of Ore Deposits Petrography Mineralogy and Geochemistry

Prasanta K. Mohapatra

Bhabha Atomic Research Centre

Parveen K. Verma

Bhabha Atomic Research Centre

Alexander L. Trigub

Kurchatov Institute

Sergey Zakusin

Institute of Geology of Ore Deposits Petrography Mineralogy and Geochemistry

ИИ

И. И. Толпешта

Lomonosov Moscow State University

ИФ

И. Ф. Серегина

Lomonosov Moscow State University

АВ

А. В. Егоров

Lomonosov Moscow State University

Cooperative Institutions

Lomonosov Moscow State University

Moscow State University

Russian Academy of Sciences

Institute of Geology of Ore Deposits Petrography Mineralogy and Geochemistry

Kurchatov Institute

Centre National de la Recherche Scientifique

Frumkin Institute of Physical Chemistry and Electrochemistry

Nuclear Safety Institute

Shenzhen MSU-BIT University

D. Mendeleyev University of Chemical Technology of Russia

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Np(V) uptake by various clays

Applied Geochemistry (2018)

Anna Semenkova Anna Yu. Romanchuk V. V. Krupskaya B. V. Pokidko O. V. Dorzhieva

10.1016/j.apgeochem.2018.02.006

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Citations (13)

The features of Cs sorption onto peaty-podzolic-gleyic soil

Chemosphere (2023)

Anna Semenkova Yulia Izosimova Aleksandra Rzhevskaia Polina Skryleva Irina Vlasova

Illite

Vermiculite

Soil horizon

Humin

Bulk soil

10.1016/j.chemosphere.2023.139580

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Citations (2)

Cesium Sorption and Desorption on Glauconite, Bentonite, Zeolite, and Diatomite

Minerals (2019)

P. E. Belousov Anna Semenkova Tolganay B. Egorova Anna Yu. Romanchuk Sergey Zakusin

This study is devoted to studying the sorption of 137Cs on mineral sorbents at a wide pH range, from 2 to 10, as well as to studying sorption mechanisms. In order to obtain the most reliable sorption characteristics, samples of high purity were examined as sorbents: bentonite, glauconite, zeolite, and diatomite. A detailed description of their mineral composition, cation exchange capacity and specific surface of sorbents is given. XRD, XRF, FTIR, SEM, and BET adsorption methods were used for assaying. The sorption and desorption values were identified for each sorbent. As a result of the conducted research, it can be concluded that 137Cs sorption mainly occurs through the exchange reaction on zeolite, glauconite and bentonite. The highest cesium Kd was observed on zeolite due to its high CEC and amounted to 4.05 mg/L at pH 7. The higher sorption capacity of glauconite in comparison with bentonite is primarily due to the high layer charge which is mainly localized in tetrahedral sheets, and to the existence of highly selective sorption sites (frayed edge sites) on the glauconite surface. Diatomite showed the lowest sorption capacity provided by the presence of a small quantity of smectite and kaolinite in its composition. The values of desorption increase in the following order: zeolite < bentonite ~ diatomite < glauconite.

Glauconite

Bentonite

Cation-exchange capacity

10.3390/min9100625

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Citations (71)

Np (V) reduction in soils: Experimental confirmation and implications for migration behavior

Chemosphere (2025)

Polina Skryleva Aleksandra Rzhevskaia Yulia Izosimova Denis Pankratov Alexander L. Trigub

10.1016/j.chemosphere.2025.144196

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