Characterization and preparation of TiO-PAN sorbent

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F12%3A00199549" target="_blank" >RIV/68407700:21340/12:00199549 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Characterization and preparation of TiO-PAN sorbent

Popis výsledku v původním jazyce

The uranium separation from natural waters was studied at the Department of Nuclear Chemistry in late 80's and early 90's. TiO-PAN sorbent (titanium dioxide embedded in polyacrylonitrile) embodied high sorption capacity for uranium. The purpose of this project was the thorough characterization of TiO-PAN sorbent with dynamic and static experiments which include kinetic experiments, sorption isotherm, effect of several ions (Ca2+; Mg2+; Fe3+; NO3 -; SO42-;Cl-; CO32-) (V/m = 500 ml/g). It was found that CO32-, SO42- and NO3- ions have a positive effect on uranium sorption and on the other hand Cl- ions have a negative sorption effect. Specific surface area was measured and compared with results gained in 2001. The uranium concentrations were determined by Time Resolved Laser Induces Fluorescence Spectrometry (TRLFS) which allows us to measure uranium concentrations up to ppb level. A strong influence of Cl- ions present in the solutions was seen, thus the calibration of TRLFS has to be m

Název v anglickém jazyce

Characterization and preparation of TiO-PAN sorbent

Popis výsledku anglicky

The uranium separation from natural waters was studied at the Department of Nuclear Chemistry in late 80's and early 90's. TiO-PAN sorbent (titanium dioxide embedded in polyacrylonitrile) embodied high sorption capacity for uranium. The purpose of this project was the thorough characterization of TiO-PAN sorbent with dynamic and static experiments which include kinetic experiments, sorption isotherm, effect of several ions (Ca2+; Mg2+; Fe3+; NO3 -; SO42-;Cl-; CO32-) (V/m = 500 ml/g). It was found that CO32-, SO42- and NO3- ions have a positive effect on uranium sorption and on the other hand Cl- ions have a negative sorption effect. Specific surface area was measured and compared with results gained in 2001. The uranium concentrations were determined by Time Resolved Laser Induces Fluorescence Spectrometry (TRLFS) which allows us to measure uranium concentrations up to ppb level. A strong influence of Cl- ions present in the solutions was seen, thus the calibration of TRLFS has to be m

Druh

O - Ostatní výsledky

CEP obor

CH - Jaderná a kvantová chemie, fotochemie

OECD FORD obor

—

Projekt

<a href="/cs/project/FR-TI3%2F245" target="_blank" >FR-TI3/245: Výzkum a vývoj technologií a systému nakládání s RAO ve vazbě na nové jaderné zdroje</a><br>

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů