Mixed surfactants-directed the mesoporous silica materials with various morphologies and structures

Journal Article · Wed Jun 15 00:00:00 EDT 2011 · Journal of Solid State Chemistry

OSTI ID:21580115

Huiming, Lin ^[1]; Xiang, Wu ^[1]; Ming, Xue; Guangshan, Zhu; Shilun, Qiu ^[2]

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1. Key Laboratory of Design and Synthesis of Functional Materials and Green Catalysis, Colleges of Heilongjiang Province and College of Chemistry and Chemical Engineering, Harbin Normal University, Harbin 150025 (China)
2. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130012 (China)

A new mixed surfactants system using alkyl carboxylic acids and quaternized poly[bis(2-chloroethyl)ether-alt-1,3-bis[3-(dimethylamino)propyl] urea] (PEPU) as the co-template was used to synthesize mesoporous silica materials with various morphologies and structures, including flakes, regular spheres, nanoparticles, and tube-spheres. The cationic polymer connected the anionic surfactant micelle to the anionic polysilicate species to induce the synthesis of the mesoporous silica materials. The structure and property of the surfactant and the cationic polymer determined the formation of mesoporous silica, and also had a signification influence on the morphology and structure of the final materials. To further explore the possible formation mechanism of these mesoporous materials, zeta potential was utilized to evaluate the interaction between the anionic surfactant and the cationic co-template. In addition, the structure, morphology, and porosity of these materials were characterized by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and N{sub 2} adsorption-desorption measurements. - Graphical abstract: A new mixed surfactants system using alkyl carboxylic acids and PEPU as the co-template was used to synthesize mesoporous silica materials with various morphologies and structures. Highlights: {yields}A new mixed surfactants system induced the mesoporous silica materials with various morphologies and structure. > It is a development of the type S{sup -}N{sup +}I{sup -} route of the mesoporous formation. > Zeta potential was utilized to evaluate the interaction between the anionic surfactant and the cationic co-template. > The property and amount of surfactant and polymer determined the formation of the mesoporous materials.

• OSTI ID: 21580115
• Journal Information: Journal of Solid State Chemistry, Vol. 184, Issue 6; Other Information: DOI: 10.1016/j.jssc.2011.03.043; PII: S0022-4596(11)00154-X; Copyright (c) 2011 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; ISSN 0022-4596
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CARBOXYLIC ACIDS
DESORPTION
INTERACTIONS
MATERIALS
MORPHOLOGY
NANOSTRUCTURES
PARTICLES
POLYMERS
SCANNING ELECTRON MICROSCOPY
SILICA
SURFACTANTS
SYNTHESIS
TRANSMISSION ELECTRON MICROSCOPY
X-RAY DIFFRACTION
COHERENT SCATTERING
DIFFRACTION
ELECTRON MICROSCOPY
MICROSCOPY
MINERALS
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXIDE MINERALS
SCATTERING
SORPTION