Effect of Transition-Metal Cations on the Adsorption of H2S in Modified Pillared Clays
| Autor: | Teresa J. Bandosz, Danh Nguyen-Thanh |
|---|---|
| Rok vydání: | 2003 |
| Předmět: |
Hydrogen sulfide
Inorganic chemistry chemistry.chemical_element Dispersion (geology) Copper Surfaces Coatings and Films law.invention Metal chemistry.chemical_compound Montmorillonite Adsorption chemistry Transition metal law visual_art Materials Chemistry visual_art.visual_art_medium Calcination Physical and Theoretical Chemistry |
| Zdroj: | The Journal of Physical Chemistry B. 107:5812-5817 |
| ISSN: | 1520-5207 1520-6106 |
| DOI: | 10.1021/jp0223509 |
| Popis: | Sodium montmorillonite was intercalated with the Keggin ion (hydroxyaluminum polycation) and calcined at 400 °C. Then, doping with Fe 3 + , Cu 2 + , or Zn 2 + was carried out. On the obtained samples, HAS breakthrough capacity tests were carried out under wet conditions. Doping with metals significantly improved the capacity of adsorbents, despite a noticeable decrease in microporosity. The sample doped with copper showed the best performance as a hydrogen sulfide adsorbent. The reason for this is likely the affinity of the metal to bind hydrogen sulfide, the degree of metal dispersion, and the accessibility of small pores. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|