The present investigation involved the synthesis of mesoporous MCM-48 molecular sieves of superior quality, utilising rice husk ash (RHA) as a precursor within a system containing fluorine. The objective of this study was to examine the impact of synthesis conditions on the structural characteristics of MCM-48 silica, employing a sustainable and environmentally conscious methodology. The rice husk ash was obtained through the collection of rice husk waste, followed by thorough washing and subsequent controlled high-temperature combustion. The ash that was obtained subsequently underwent a process of being finely ground into a powder. The extraction of silica was accomplished through the treatment of the ash with a solution composed of hydrofluoric acid (HF) and water, resulting in the formation of a solution containing silica. In order to integrate the fluorine-containing system, a surfactant containing fluorine, such as perfluorooctanoic acid (PFOA), was introduced into the synthesis procedure. The silica solution was altered by combining it with a surfactant containing fluorine. This altered resolution was subsequently subjected to the procedures of gelation and solidification. The fabricated porous “MCM-48 molecular sieves underwent analysis through the application of X-ray diffraction (XRD), nitrogen adsorption-desorption, and scanning electron microscopy (SEM). The results of the” investigation suggest that the chosen arrangement circumstances had a significant influence on the qualities of the MCM-48 silica. The silicon material exhibited a favourable globular structure and had a particular mean surface area of 1000 m2/g, indicating outstanding permeability and possibility for various uses. The current investigation centres on the utilisation of rice husk ash as an eco-friendly precursor and the integration of a fluorine-containing system for the production of top-notch porous MCM-48 molecular sieves. This investigation provides a valuable addition to the progression of environmentally-friendly approaches, with the goal of cultivating verdant and sustainable substances that possess advantageous structural traits appropriate for various uses.