Functionalized ordered mesoporous silicas, such as the highly renowned MCM-48, have garnered considerable interest and fascination within the scientific community. This is primarily due to their exceptional and distinctive properties, which hold immense potential for various applications, particularly in the realm of catalysis. The intricate and precisely organised structure of these mesoporous silicas, combined with their functionalization, has paved the way for groundbreaking advancements and In the current context, the utilisation of rice husk ash (RHA) as an agricultural waste material for the synthesis of MCM-48 presents a highly sustainable and environmentally friendly approach. By repurposing this abundant byproduct of rice production, we can effectively reduce waste and minimise the negative impact on our environment. Rice husk ash, which is obtained from the burning of rice husks, has long been recognised as a potential source of valuable materials due to its unique chemical composition. However, its utilisation has been limited, and it is often discarded as waste, leading to significant environmental concerns.