Abstract Mo(VI) tetradentate Schiff base complexes were covalently immobilized onto chemically functionalized graphene oxide (GO) using 3-(tri-methoxysilyl) propylamine as a coupler. The resulting heterogeneous catalysts have been characterized by FTIR, DRS, XRD, SEM, TGA, and atomic absorption spectroscopy (AAS). These catalysts were applied in epoxidation of cyclooctene and other olefins. The catalytic procedures with all catalysts were optimized for different parameters such as oxidant, solvent and temperature. Recycling results indicated that the catalysts were highly stable and maintained activity and selectivity even after being used for five cycles.

中文翻译：

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固定在功能化氧化石墨烯纳米片上的 Mo(VI) 席夫碱配合物用于烯烃的催化环氧化

摘要 使用 3-（三甲氧基甲硅烷基）丙胺作为偶联剂将 Mo(VI) 四齿席夫碱配合物共价固定在化学功能化的氧化石墨烯 (GO) 上。所得多相催化剂已通过 FTIR、DRS、XRD、SEM、TGA 和原子吸收光谱 (AAS) 进行表征。这些催化剂用于环辛烯和其他烯烃的环氧化。使用所有催化剂的催化程序针对不同的参数（例如氧化剂、溶剂和温度）进行了优化。回收结果表明，该催化剂在使用五次循环后仍保持高度稳定并保持活性和选择性。