Synthesis and sorption behavior of semicrystalline sodium titanate as a new cation exchanger

被引：23

作者：

Ali, IM ^{[1
]}

机构：

[1] Atom Energy Author, Dept Hot Labs Ctr, Nucl Fuel Technol, Cairo, Egypt

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2004年 / 260卷 / 01期

关键词：

D O I：

10.1023/B:JRNC.0000027074.36548.29

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A new form of semicrystalline sodium titanate was synthesized at high temperature (1100-1150degreesC) by a reaction of TiO2, with Na2CO3 in an equimolar ratio. The obtained product was characterized using IR, DTA-TG, X-ray diffraction and elemental analyses. According to X-ray patterns, H2Ti5O11.nH(2)O with monoclinic structure has been formed on dehydration of semicrystalline sodium titanate. Kinetic studies of the order and activation energy of a new phase transformation have been determined from IDTA-thermograms. The ion exchange behavior of semicrystal line sodium titanate was studied at different gamma-doses as well as at different drying temperatures. The laboratory-scale ion exchange capacity, distribution studies and exchange performance for some radionuclides of a thermally prepared material were investigated. It was found that the exchange capacity was not changed after 100 kGy irradiation.

引用

页码：149 / 157

页数：9

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