1. One-Pot Synthesis and Surfactant Removal from MCM-41 Using Microwave Irradiation
- Author
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Marília R. Oliveira, Yasmin T. Barboza, Thauane S. L. Silva, Juan A. Cecilia, Enrique Rodríguez-Castellón, Silvia M. Egues, and Juliana F. De Conto
- Subjects
MCM-41 silica ,one-pot synthesis ,CTAB ,microwave irradiation ,Organic chemistry ,QD241-441 - Abstract
This research pioneers the application of microwave irradiation as an innovative strategy for one-pot synthesis and surfactant elimination (cetyltrimethylammonium bromide—CTAB) from MCM-41, introducing a rapid and efficient methodology. MCM-41 silica is widely utilized in various applications due to its unique textural and structural properties. Nonetheless, the presence of residual surfactants after synthesis poses a challenge to its effective application. MCM-41 synthesis, conducted in a microwave reactor at 60 °C, provided a result within 0.5 to 1 h. Comprehensive analyses of structural, chemical, morphological, and surface characteristics were undertaken, with a focus on the impact of synthesis time on these properties. Surfactant extraction involved the use of ethanol as a solvent at 120 °C for 6 min within the microwave reactor. The acquired particles, coupled with the properties of textural and structural features, affirmed the efficacy of the synthesis process, resulting in the synthesis of MCM-41 within 36 min. This study presents the first instance of one-pot synthesis and surfactant removal from MCM-41 using a microwave reactor. The proposed method not only addresses the surfactant removal challenge, but also substantially accelerates the synthesis process, thereby enhancing the potential for MCM-41’s application in diverse fields.
- Published
- 2024
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