Thorium removal from weakly acidic solutions using titan yellow-impregnated XAD-7 resin beads: kinetics, equilibrium and thermodynamic studies
| Autor: | Ahmad Allahabadi, Ayoob Rastegar, Zahra Pajohankia, Abolfazl Rahmani-Sani, Ramzanali Khamirchi, Mohammad Mehrpouyan, Ahmad Hosseini-Bandegharaei, Reza Hekmatshoar |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Sorbent
Health Toxicology and Mutagenesis Inorganic chemistry Kinetics chemistry.chemical_element 02 engineering and technology 010403 inorganic & nuclear chemistry 01 natural sciences Endothermic process Analytical Chemistry chemistry.chemical_compound symbols.namesake Desorption Radiology Nuclear Medicine and imaging Spectroscopy Chemistry technology industry and agriculture Public Health Environmental and Occupational Health Thorium Langmuir adsorption model Sorption 021001 nanoscience & nanotechnology Titan yellow Pollution 0104 chemical sciences Nuclear Energy and Engineering symbols 0210 nano-technology |
| Zdroj: | Journal of Radioanalytical and Nuclear Chemistry. |
| ISSN: | 1588-2780 0236-5731 |
| Popis: | To remove Th(IV) ion from acidic solutions (pH 2.5–2.7), an extractant-impregnated resin (EIR) was fabricated by impregnation of Ambelite XAD-7 resin beads with titan yellow as extractant. Various physicochemical factors such as pH, contact time, temperature, sorbent dose and initial concentration of thorium were investigated. The isotherm data was well interpreted by the Langmuir model. Kinetic experiments data showed that the sorption process could be described by Weber–Morris kinetic model. Thermodynamic studies revealed the feasibility, spontaneity and endothermic nature of sorption process. Desorption experiments showed that the EIR could be reused without significant losses of its initial capacity. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink