Thermal and sorption behavior of polyacrylonitrile supported hydrous titanium dioxide |
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| Authors: | I. M. Ali A. A. El-Zahhar E. S. Zakaria |
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| Affiliation: | (1) Hot Labs. Center, Atomic Energy Authority, P.O. Box 13759, Cairo, Egypt;(2) Hot Labs. Center, Atomic Energy Authority, P.O. Box 13759, Cairo, Egypt;(3) Hot Labs. Center, Atomic Energy Authority, P.O. Box 13759, Cairo, Egypt |
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| Abstract: | Summary Modification of the physico-chemical properties of hydrous titanium dioxide (TiO2) was conducted by using binding polyacrylonitrile (PAN) for the preparation of larger size particles having higher granular strength. The thermal behavior of the obtained composite has been studied by thermogravimetric and differential thermal analysis (TG/DTA). Sorption behavior of the TiO2-PAN composite for removal of some hazardous radionuclides has been studied at different conditions such as, pH, contact time, ion concentrations and reaction temperature as well as the drying temperature. The effects of interfering ions as well as some complexing agents on the distribution ratio of the sorption process have been determined. As a result of the obtained data the optimum conditions for the removal of the studied radionuclides were recommended. |
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