Abstract
Ordered 2D hexagonal and parallel arranged pore channel mesoporous silica materials with homogeneous size and spherical shape have been synthesized by using amino acid-based surfactant templating, their ordered mesostructures were characterized by infrared spectroscopy, X-ray diffraction patterns (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and nitrogen sorption analysis.
Highlights
Synthesis of mesoporous material by the route of self-assemly directed by micelles formed by surfactant has attracted much more interests [1,2]
Due to ordered parallel arranged micelle originating from the amino acid-based surfactant molecules and cosurfactant (3-aminopropyltrimethoxysilan(APS)) by dipole moment and hydrogen bonding, the formation of ordered mesoporous silica is directed by amino acid-based surfactant
The product was placed in muffle furnace and calcined at 650°C for 6 h, the acquired product was marked as MYS-K-1. Another part continued to stir for 24 h, the product was filtrated after reaction, and it was washed with deionized water and anhydrous ethanol repeatedly, self-dried at room temperature
Summary
Synthesis of mesoporous material by the route of self-assemly directed by micelles formed by surfactant has attracted much more interests [1,2]. The positive charge of hydrophilic cations is carried by amido groups, and negative charge is carried by carboxyl groups. Until now there is few successful synthesis of ordered mesoporous silica directed by amino acid-based surfactant [4,5]. Due to ordered parallel arranged micelle originating from the amino acid-based surfactant molecules and cosurfactant (3-aminopropyltrimethoxysilan(APS)) by dipole moment and hydrogen bonding, the formation of ordered mesoporous silica is directed by amino acid-based surfactant. The presence of a significant dipole moment and hydrogen bonding by amino acids and uneven charge distribution in the molecules causes ordered parallel arranged micelles, which directs synthesis of ordered mesoporous silica [6]. Structure was firstly synthesized directed by amino acid-based surfactant, potassium N-dodecyl glycine (MYS-K), and a series of characterizations performed
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