| Title |
Al2O3-Cact derivatives: synthesis and properties |
| Another Title |
Al2O3-Cakt dariniai: sintezė ir savybės. |
| Authors |
ANDRIJAUSKIENĖ, Edita ; Dabrilaitė-Kudžmienė, Gitana ; Kitrys, Saulius |
| Full Text |
|
| Is Part of |
Materials science = Medžiagotyra.. Kaunas : Technologija. 2010, vol. 16, no. 4, p. 353-357.. ISSN 1392-1320. eISSN 2029-7289 |
| Keywords [eng] |
Sol-gel synthesis ; Composite adsorbents ; Alumina gel ; Activated carbon ; Thermal stability ; Adsorption |
| Abstract [eng] |
In the present work Al2O3-Cact binary derivatives were synthesized by sol-gel method. Thermal resistance of these derivatives is 70 °C – 200 °C higher (depending on activated carbon type) compared to pure carbons. For the analysis of these composites X-ray diffraction (XRD) and infrared spectroscopy (IR) were used. The adsorption of acetone and water vapor as well as thermal regeneration at 100 °C of wet samples was investigated. Results show that Al2O3-Cact derivatives are hydrophobic: water vapor is adsorbed slowly; calculated low values of adsorption coefficient show weak interaction between adsorbent and adsorbate. Acetone vapor adsorption is fast, equilibrium is reached in 80 min – 120 min. Water vapor from the wet Al2O3-Cact surface is eliminated in ~70 min at 100 °C. |
| Published |
Kaunas : Technologija |
| Type |
Journal article |
| Language |
English |
| Publication date |
2010 |
| CC license |
|
