The (CNH)[Cu(HO)]() Structural Family: When Fluoroberyllate, Sulfate, and Selenate Are Full Analogs.

Two new organo-inorganic hybrids, (CNH)[Cu(HO)](BeF) () and (CNH)[Cu(HO)](SeO) (), were prepared via the interaction of ethylenediamine, copper fluoroberyllate or selenate, and H[BeF]/HSeO in aqueous solutions. The structures of and are similar to each other and the previously reported (CNH)[Cu(HO)](SO): monoclinic, 2/, = 5.1044(2) Å, = 11.

An SPS-RS Technique for the Fabrication of SrMoO Powellite Mineral-like Ceramics for Sr Immobilization.

This paper reports a method for the fabrication of mineral-like SrMoO ceramics with a powellite structure, which is promising for the immobilization of the high-energy Sr radioisotope. The reported method is based on the solid-phase "in situ" interaction between SrO and MoO oxides initiated under spark plasma sintering (SPS) conditions. Dilatometry, XRD, SEM, and EDX methods were used to investigate the consolidation dynamics, phase formation, and structural changes in the reactive powder blend and sintered ceramics.

Radionuclides' Recovery from Seawater Using FIC and FIC A Sorbents.

To solve radioecological and oceanological problems (estimate the vertical transport, flows of particulate organic carbon, phosphorus biodynamics, submarine groundwater discharge, etc.), it is necessary to determine the natural values of the radionuclides' activity in seawater and particulate matter. For the first time, the radionuclides' sorption from seawater was studied using sorbents based on activated carbon modified with iron(III) ferrocyanide (FIC) and based on activated carbon modified with iron(III) hydroxide (FIC A-activated FIC) obtained by FIC sorbent treatment with sodium hydroxide solution.

Be Recovery from Seawater by Sorbents of Various Types.

For the first time, a comprehensive study of sorbents based on manganese dioxide was carried out for beryllium sorption from seawater in laboratory and expeditionary conditions. The possibility of using several commercially available sorbents based on manganese dioxide (Modix, MDM, DMM, PAN-MnO) and phosphorus(V) oxide (PD) for Be recovery from seawater for solving oceanological problems was evaluated. Beryllium sorption under static and dynamic conditions was studied.

Estimation of Ra and Ra Content Using Various Types of Sorbents and Their Distribution in the Surface Layer of the Black Sea.

Radium isotopes have traditionally been used as tracers of surface and underground fresh waters in land-ocean interactions. The concentration of these isotopes is most effective on sorbents containing mixed oxides of manganese. During the 116 RV Professor Vodyanitsky cruise (22 April-17 May 2021), a study about the possibility and efficiency of Ra and Ra recovery from seawater using various types of sorbents was conducted.