Method for obtaining bimodal mesoporous materials based on silicon oxides using microwave radiation

A method for obtaining bimodal mesoporous materials, the method comprising the steps of:

• forming a first stage of a mesostructured material containing organic matter, based on silicon oxides obtained from atrane precursors, and
• forming a second stage of the mesostructured material by eliminating the organic matter contained in the mesostructured material by calcination, wherein:
• eliminating the organic matter obtains a bimodal mesoporous material based on silicon oxide, and wherein
• the second forming step comprises a treatment with microwave radiation coming from solid-state sources at two different powers following a pattern of time and power as follows:
• between 3 and 9 minutes at a first power between 180 and 205 W, and
• between 3 and 6 minutes at a second power of between 145 and 155 W, for 200 mg of material obtained in the first forming step.