草甘膦(PMG)是一个重要的除草剂品种,用途广泛高效、低毒。甘氨酸法是常用的PMG合成方法,最后一步是PMIDA的氧化产生PMG,氧化剂可以使用双氧水、氧气。其中氧气价廉易得,因此较多被采用(图1);催化剂有活性炭、过渡金属等。活性炭的研究已见很多报道,但PMIDA的初始量小,尽管收 Glyphosate (PMG) is an important herbicide variety with a wide range of uses and low toxicity. Glycine method is commonly used PMG synthesis method, the last step is PMIDA oxidation PMG, oxidants can use hydrogen peroxide, oxygen. Among them, oxygen is cheap and readily available, so it is used more (Figure 1). Catalysts include activated carbon and transition metals. Activated carbon has been reported in many studies, but the initial amount of PMIDA is small, despite the close