Nanoporous composites prepared by a combination of SBA-15 with Mg–Al mixed oxides. Water vapor sorption properties

• Amaury Pérez-Verdejo,
• Alvaro Sampieri,
• Heriberto Pfeiffer,
• Mayra Ruiz-Reyes,
• Juana-Deisy Santamaría and
• Geolar Fetter

Beilstein J. Nanotechnol. 2014, 5, 1226–1234, doi:10.3762/bjnano.5.136

• might be utilized as as acid-base catalysts, adsorbents, sensors or storage nanomaterials. Keywords: calcined Mg–Al hydrotalcite; nanoporous composites; SBA-15; vapor sorption; Introduction Multifunctional nanomaterials are designed to satisfy specific ranged sets of performance requirements. The

• 40 °C to 55 °C (equilibrium temperature). Therefore, the smaller pore size causes slow water diffusion. Conclusion Nanoporous composites were obtained from combinations of Mg–Al precursors of a hydrotalcite with SBA-15. The post-synthesis method is a simple and effective way to prepare composites

• . Adsorption–desorption isotherms of water vapor of the HT, SBA-15 and nanoporous composites. Adsorption of water vapor at different relative humidity values versus increase of temperature from 35 to 70 °C of the HT/SBA(NC) and (Mg/Al)/SBA composites. Textural properties and Mg/Al molar ratio of the calcined