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Preparation of Functional Silica Using a Bioinspired Method

Preparation of Functional Silica Using a Bioinspired Method

Published on: August 1, 2018

Tailored jeffamine molecular tools for ordering mesoporous silica.

A May¹, A Pasc, M J Stébé

¹Université de Lorraine, SRSMC, UMR7565, F-54506 Vandoeuvre-lès-Nancy cedex, France.

Langmuir : the ACS Journal of Surfaces and Colloids

|June 2, 2012

Summary

Researchers developed new mesoporous silica materials using a novel nonionic gemini surfactant. Synthesis conditions, like temperature, control the nanostructure and mesopore ordering for advanced material design.

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Synthesis and Characterization of Functionalized Metal-organic Frameworks

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Published on: September 5, 2014

Area of Science:

Materials Science
Nanotechnology
Supramolecular Chemistry

Background:

Mesoporous silica materials offer tunable porosity for diverse applications.
Developing novel surfactants is key to controlling the self-assembly process for ordered nanostructures.

Purpose of the Study:

To synthesize and characterize organized mesoporous silica materials.
To investigate the self-assembly behavior of a novel myristoyl-end-capped Jeffamine surfactant.
To explore the influence of synthesis parameters on material nanostructure and mesopore ordering.

Main Methods:

Synthesis of a novel nonionic gemini surfactant (myristoyl-end-capped Jeffamine).
Investigation of surfactant behavior in water using phase diagrams and Small-Angle X-ray Scattering (SAXS).
Characterization of mesoporous silica materials using SAXS, nitrogen adsorption-desorption, and electron microscopy (TEM, SEM).

Main Results:

The novel surfactant forms globular core-shell micelles in water.
Mesoporous silica materials were successfully synthesized via self-assembly.
Synthesis parameters, including surfactant/silica ratio and hydrothermal temperature, significantly influence material size and nanostructure.
Lower hydrothermal treatment temperatures enhance mesopore ordering.

Conclusions:

Myristoyl-end-capped Jeffamine is a viable templating agent for mesoporous silica synthesis.
Controlled self-assembly allows for tunable nanostructuring of silica materials.
Hydrothermal conditions are critical for achieving ordered mesoporous silica architectures.