Synthesis, characterization and application of metal oxides impregnated silica for the sorption of thorium

被引：17

作者：

Sengupta, Arijit ^{[1
]}

Jayabun, Sk ^{[1
]}

Pius, I. C. ^{[2
]}

Thulasidas, S. K. ^{[1
]}

机构：

[1] Bhabha Atom Res Ctr, Radichem Chem Div, Bombay 400085, Maharashtra, India

[2] Bhabha Atom Res Ctr, Div Fuel Chem, Bombay 400085, Maharashtra, India

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2016年 / 309卷 / 02期

关键词：

Thorium; Sorption; Kinetics; Isotherm; XRD; SEM; AQUEOUS-SOLUTION; ADSORPTION; ACTINIDES; AMERICIUM; KINETICS; REMOVAL; OXALATE; GASES;

D O I：

10.1007/s10967-015-4658-4

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Adsorption of thorium on the metal oxides impregnated silica has been investigated. The sorption kinetics revealed the trend in rate of Th sorption as iron oxide > chromium oxide > vanadium oxide. The sorption capacities were evaluated from Langmuir isotherm with the trend in the strength of the bonding chromium oxide > iron oxide > vanadium oxide. The sorption behavior was also analyzed comparing Dubinin-Radushkevich, Temkin and Freundlich isotherm. Oxalic acid was found to strip thorium effectively from sorbent. Chromium oxide-silica was found to be the most efficient and selective sorbent with co-sorption of Ag, Bi, Ga, In and Tl.

引用

页码：841 / 852

页数：12

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