Synthesis and characterization of AN/EGDMA-based adsorbents for phenol adsorption
| Autor: | Manuel Sánchez-Cantú, Juana Deisy Santamaría-Juárez, José Alberto Galicia-Aguilar, Jenaro Leocadio Varela-Caselis, Maribel López-Badillo |
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| Rok vydání: | 2017 |
| Předmět: |
Polymers and Plastics
General Chemical Engineering Ethylene glycol dimethacrylate 02 engineering and technology 010402 general chemistry 01 natural sciences Biochemistry chemistry.chemical_compound symbols.namesake Adsorption Specific surface area Polymer chemistry Materials Chemistry Environmental Chemistry chemistry.chemical_classification Cross-link technology industry and agriculture Langmuir adsorption model General Chemistry Polymer 021001 nanoscience & nanotechnology 0104 chemical sciences chemistry symbols Suspension polymerization Acrylonitrile 0210 nano-technology Nuclear chemistry |
| Zdroj: | Reactive and Functional Polymers. 117:112-119 |
| ISSN: | 1381-5148 |
| Popis: | In this work, acrylonitrile (AN)/ethylene glycol dimethacrylate (EGDMA) cross-linked polymeric adsorbents were synthesized by the suspension polymerization method. The adsorbents were prepared varying the EGDMA cross-linker ratio from 100 to 60%. It was found that the swelling factor and the specific surface area changed inversely with the crosslinking degree. In addition, the thermal characterization indicated that polymers stability increased as the crosslinking degree decreased. The polymers were tested as phenol adsorbents and it was found that the higher uptake level was reached when the acrylonitrile concentration increased in the polymer. Adsorption isotherm was determined fitting the Langmuir model, indicating a homogeneous surface of the adsorbents. Moreover, the kinetic studies indicated that the rate controlling step corresponded to the intraparticle diffusion since adsorption is promoted when the adsorbent is swollen. |
| Databáze: | OpenAIRE |
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