Global carbon dioxide (CO₂) emissions continue to rise, driving an urgent demand for advanced carbon capture technologies. Mesoporous silica-specifically Mobil Composition of Matter No. 41 (MCM-41)- offers considerable potential owing to its ordered pore structure and high surface area. In this study, MCM-41 was synthesized using a sol-gel method and functionalized with two commercial amine-based surface modifiers, Hydrosil 2775 (S1) and Hydrosil 2999 (S2). Structural characterization by Fourier transform infrared spectroscopy confirmed the successful grafting of amine groups onto the silica framework. Brunauer-Emmett-Teller analysis demonstrated a specific surface area of 334.42 m²/g, confirming the retention of mesoporosity. CO₂ adsorption capacity was evaluated by direct dynamic mass-response measurements. The results demonstrated a marked mass increase, corresponding to a net uptake of approximately 22.8 mg/g. These findings highlight the effectiveness of amine-functionalized MCM-41 as a promising and readily scalable adsorbent for industrial carbon capture applications.