Adsorption of cobalt(II) ion on prepared TiO2 adsorbents in high temperature water
Creators
- 1. Korea Atomic Energy Research Inst., Taejon (Korea, Republic of). NPP Life Management Section
- 2. Korea Advanced Inst. of Science and Technology, Taejon (Korea, Republic of)
Description
TiO2 adsorbents were prepared by hydrolysis of Ti(OC3H7)4 followed by heat treatment of their hydroxides. Their structures were studied by X-ray diffractometry and Fourier transform infrared spectrometer as a function of preparation pH. The Co2+ adsorption characteristics of the adsorbent in high temperature water were investigated in a stirred autoclave. CO2+ adsorption capacity of the TiO2 adsorbent was determined to be 0.09 mEq/g adsorbent in 280 C of high temperature water. The enthalpy change (ΔH degree) of about 34 kJ/mol caused by the adsorption of Co2+ on the TiO2 indicates that the adsorption is endothermic in the experimental temperature range (150--280 C). It was shown that specific surface area and surface OH groups of these adsorbents are not dominant factors for Co2+ adsorption on oxides at high temperature
Additional details
Publishing Information
- Journal Title
- High Temperature and Materials Science
- Journal Volume
- 35
- Journal Issue
- 2
- Journal Page Range
- p. 187-192.
- ISSN
- 1080-1278
- CODEN
- HTMSFP
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 28001901
- Subject category
- S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
- Descriptors DEI
- ADSORBENTS; ADSORPTION; BWR TYPE REACTORS; CHEMICAL PREPARATION; COBALT; COOLANT CLEANUP SYSTEMS; PWR TYPE REACTORS; RADIATION PROTECTION; SORPTIVE PROPERTIES; THERMODYNAMIC PROPERTIES; TITANIUM OXIDES
- Descriptors DEC
- CHALCOGENIDES; ELEMENTS; ENRICHED URANIUM REACTORS; METALS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; POWER REACTORS; REACTORS; SORPTION; SURFACE PROPERTIES; SYNTHESIS; THERMAL REACTORS; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS; WATER COOLED REACTORS; WATER MODERATED REACTORS