A series of triethanolamine-modified mesoporous SBA-15 catalysts were synthesized by a facile one-pot process, and used as the catalyst for the synthesis of cyclic carbonates through the cycloaddition of CO₂ with epoxides. The properties of catalysts were characterized by nitrogen adsorption–desorption, elemental analysis (EA), Fourier transform infrared (FT-IR) spectra, Magic angle spinning nuclear magnetic resonance (MAS NMR), X-ray diffraction (XRD), scanning electron microscope (SEM), and transmission electron microscopy (TEM), and the results suggested that triethanolamine (TEA) had been successfully immobilized on SBA-15. It was highly active in the cycloaddition reaction, in which the maximum yield of PC could achieve 93.47% under the conditions as follow: catalyst amount of 0.20 g, reaction temperature of 110 °C, reaction pressure of 2.0 MPa and reaction time of 4 h. Notably, the catalyst can be easily recovered by filtration, and it can be retained most of its catalytic stability and activity after five recycling times. On the basis of the experimental results, the interactions between the catalysts and the substrates were studied by DFT calculations, and the possible mechanism for the reaction was proposed.

通过简便的一锅法合成了一系列三乙醇胺改性的介孔SBA-15催化剂，并用作通过环加成CO ₂合成环状碳酸酯的催化剂与环氧化物。催化剂的性质通过氮吸附-解吸，元素分析（EA），傅立叶变换红外（FT-IR）光谱，魔角旋转核磁共振（MAS NMR），X射线衍射（XRD），扫描电子显微镜表征（SEM）和透射电子显微镜（TEM），结果表明三乙醇胺（TEA）已成功固定在SBA-15上。它在环加成反应中具有很高的活性，在以下条件下，催化剂的最大收率可以达到93.47％：催化剂用量为0.20 g，反应温度为110°C，反应压力为2.0 MPa，反应时间为4 h 。值得注意的是，催化剂可以通过过滤容易地回收，并且在五个循环时间之后可以保留其大部分的催化稳定性和活性。