Resourceful catalytic materials and adsorbents are vital in treating various forms of organic pollutants that causes serious environmental effects. In the present work, amine (NH₂) group functionalized ordered mesoporous silica SBA-15 has been utilized as solid support for gold nanoparticles (Au NPs, ∼3%) dispersion under facile hydrothermal conditions. The mesoporous structure, Au nanoparticles dispersion and morphology of the synthesized AuNPs/NH₂-SBA-15 catalyst were characterized by X-ray diffraction (XRD), N₂ Sorption, Fourier transform infrared spectrum (FTIR), High resolution scanning electron microscope (HRSEM) and transmission electron microscopy (TEM). The resultant AuNPs/NH₂-SBA-15 material was explored for their catalytic reduction of rhodamine B (RhB), rhodamine 6G (Rh6G), rose bengal (RB), methylene blue (MB) and 4-nitrophenol (4-NP) using NaBH₄ as the reducing agent. AuNPs/NH₂-SBA-15 catalyst showed significantly higher activity for the reduction of organic molecules due to the synergistic effect of Ag NPs-inorganic silica SBA-15, mesoporous nature and effectual NH₂– functionality. The reduction rate constants of RhB, Rh6G, RB, MB dyes and 4-NP over the nanocomposite catalyst in the presence of NaBH₄ was 2.54 × 10⁻² s⁻¹, 5.73 × 10⁻² s⁻¹, 2.99 × 10⁻² s⁻¹, 3.56 × 10⁻² s⁻¹ and 73.7 × 10⁻² s⁻¹, respectively. Considering the reduction performance and kinetics, the AuNPs/NH₂-SBA-15 materials are promising for catalytic applications in environmental waste-water treatment processes.

资源丰富的催化材料和吸附剂对于处理造成严重环境影响的各种形式的有机污染物至关重要。在目前的工作中，胺（NH ₂ ）基团功能化的有序介孔二氧化硅SBA-15已被用作金纳米粒子（Au NPs，∼3％）在轻松水热条件下分散的固体载体。采用X射线衍射(XRD)、N ₂吸附、傅里叶变换红外光谱(FTIR)、高分辨率扫描电子显微镜(FTIR)等手段对合成的AuNPs/NH _{2 -SBA-15催化剂的介孔结构}、Au纳米粒子分散度和形貌进行了表征。 HRSEM）和透射电子显微镜（TEM）。探索了所得的 AuNPs/NH ₂ -SBA-15 材料对罗丹明 B (RhB)、罗丹明 6G (Rh6G)、玫瑰红 (RB)、亚甲基蓝 (MB) 和 4-硝基苯酚 (4-NP) 的催化还原作用使用NaBH ₄作为还原剂。由于Ag NPs-无机二氧化硅SBA-15、介孔性质和有效NH ₂ - 功能的协同作用， AuNPs/NH ₂ -SBA-15 催化剂对有机分子的还原表现出显着更高的活性。_{在NaBH 4}存在下，RhB、Rh6G、RB、MB染料和4-NP在纳米复合催化剂上的还原速率常数分别为2.54 × 10 ^-2 s ^-1、5.73 × 10 ^-2 s ^-1、2.99 × 10 ^-分别为2 s ^-1、3.56 × 10 ^-2 s ^-1和73.7 × 10 ^-2 s ^-1。考虑到还原性能和动力学，AuNPs/NH ₂ -SBA-15材料在环境废水处理过程中具有良好的催化应用前景。