A Facile and Rapid Sonochemical Route to Synthesize Highly Ordered Mesoporous Silicas MCM‐48 and Al‐MCM‐48 with Ia3d Cubic Structure Using Gemini Surfactant. Issue 7 (10th May 2013)

• Record Type: Journal Article
• Authors: Wu, Hao‐Yiang; Huang, Shi‐Zhe; Ting, Chun‐Chiang; Deka, Juti Rani; Kao, Hsien‐Ming
• Is Part Of: Journal of the Chinese Chemical Society. Volume 60:Issue 7(2013:Jul.)
• Page Start: 831
• Page End: 838
• Publication Date: 2013-05-10
• Subjects: Chemistry -- Periodicals; Electronic journals; 540.5
• DOI: 10.1002/jccs.201200634
• Languages: English
• ISSNs: 0009-4536

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>Highly ordered cubic mesoporous silicas MCM‐48 and Al‐MCM‐48 with high surface areas were successfully synthesized using Gemini surfactant as template under basic conditions within a very short time period with the aid of ultrasonic irradiation. The introduction of ultrasonic irradiation as an intermediate synthesis step before the hydrothermal treatment has reduced the total synthesis time significantly from 7 days to 24 hours, which is much shorter than the required time for the conventional synthesis of MCM‐48 directly via the hydrothermal route alone. The structural and textural properties of the resultant materials can be finely tuned by varying the ultrasonic irradiation time for pure MCM‐48 and Al‐MCM‐48 with various Si/Al ratios. The final products exhibited well ordered cubic <italic>Ia3d</italic> mesostructure with surface areas in the range of 968‐1861 m²g⁻¹, pore volumes of 0.52‐0.91 cm³g⁻¹, and pore diameters in the range of 1.9‐2.9 nm, which are comparable to the conventional analogues.</p> </abstract>