In this work, three amorphous mesoporous materials (MMD1, MMD2, and MMD3) with different structural characteristics were synthesized and impregnated with 10% of Fe2O3, in-order-to obtain an effective amorphous mesoporous material (MMD) for H2S adsorption. These materials were characterized by using SEM, EDX, TEM, ICP-MS, N2 Adsorption, and DRX. Capacity tests for H2S adsorption were performed to evaluate its performance as adsorbents of this gas. The results showed that the MMD1 mesoporous material impregnated with Fe2O3 showed the highest adsorption capacity of H2S concerning the other materials studied in this work. This material could be a good option to control environmental emissions and improve the quality of the oil and gas.