Radiochemistry p. 419 - 425 (2007)
Update date:2022-08-10
Topics:
Khasanova
Shcherbina
Kalmykov
Teterin
Novikov
Sorption of Np(V), Pu(V), and Pu(IV) on colloids of synthetic goethite (α-FeOOH), hematite (α-Fe2O3), maghemite (γ-Fe2O3), and amorphous MnO2 was studied over wide ranges of solution pH and ionic strength by solvent extraction and X-ray photoelectron spectroscopy (XPS). Plutonium(V) is reduced upon sorption on α-FeOOH, but not on α-Fe2O3 and γ-Fe2O3. On the MnO2 surface, Pu occurs as Pu(VI). From the pH dependences of the actinide sorption, the equilibrium constants of the reactions of Np(V)O 2 + and Pu(V)O 2 + with the surface hydroxy groups of the investigated colloid particles and a set of the equilibrium constants of the reactions of Pu(IV) hydroxo complexes with α-FeOOH were obtained. If no redox reactions occur on the surface of the colloid particles, these constants decrease in the order K MnO2 > K - FeOOH > K - Fe K - Fe.
View MoreShanghai He Yang International Trading Co., Ltd.
Contact:+86-21-52043598
Address:Room 816, Blag.5, No.58 Huachi Road
Henan Yellow River New Material Technology Co.Ltd.
website:http://www.yellowriverchem.com
Contact:0086-373-7278760
Address:Chengguan Town, Yuanyang County
Contact:+86-574- 87178138; 87297407
Address:No. 809, Liudingxingzuo, cangsong road, Ningbo, China
NIGNXIA XINDACHANG TECHNOLOGY CO.,LTD
website:https://xdcchemical.com/
Contact:86-311-85758226
Address:North Industry Area, Wuji
Dalian Join King Biochemical Tech. Co., Ltd.
Contact:0411 39216206
Address:814 First State Blvd
Doi:10.1107/S0108270101006965
(2001)Doi:10.1039/j39680002751
(1968)Doi:10.1007/BF01134177
(1983)Doi:10.1021/acscatal.8b02161
(2018)Doi:10.1016/j.bioorg.2013.09.001
(2013)Doi:10.1016/S0040-4039(00)92783-7
(1980)