Factorial design to optimize microwave-assisted synthesis of FDU-1 silica with a new triblock copolymer

Author(s)

Cides da Silva, L. C. ^[1] ; dos Reis, T. V. S. ^[1] ; Cosentino, I. C. ^[2] ; Fantini, M. C. A. ^[3] ; Matos, J. R. ^[1] ; Bruns, R. E. ^[4]

Affiliation

^[1] Univ Sao Paulo, Inst Quim, Dept Quim Fundamental, BR-05508000 Sao Paulo - Brazil

^[2] IPEN CNEN SP, BR-05508000 Sao Paulo - Brazil

^[3] Univ Sao Paulo, Inst Fis, Dept Fis Aplicada, BR-05314970 Sao Paulo - Brazil

^[4] Univ Estadual Campinas, Inst Quim, BR-13083970 Campinas, SP - Brazil

• Document type: Journal article
• Source: Microporous and Mesoporous Materials; v. 133, n. 1-3, p. 1-9, SEP 2010.
• Web of Science Citations: 5

Abstract

The synthesis of FDU-1 silica with large cage-like mesopores prepared with a new triblock copolymer Vorasurf 504 (R) (Eo)(38)(BO)(46)(EO)(38) was developed. The hydrothermal treatment temperature, the dissolution of the copolymer in ethanol, the HCl concentration, the solution stirring time and the hydrothermal treatment time in a microwave oven were evaluated with factorial design procedures. The dissolution in ethanol is important to produce a material with better porous morphology. Increases in the hydrothermal temperature (100 degrees C) and HCl concentration (2 M) improved structural, textural and chemical properties of the cubic ordered mesoporous silica. Also, longer times induced better physical and chemical property characteristics. (C) 2010 Elsevier Inc. All rights reserved. (AU)

• FAPESP's process: 07/07646-2 - Potential applications of highly ordered mesoporous materials in analytical chemistry and the environment
• Grantee: Luís Carlos Cides da Silva
• Support Opportunities: Scholarships in Brazil - Post-Doctoral