Amino-functionalized synthesis of MnO2-NH2-GO for catalytic ozonation of cephalexin

摘要: Abstract Catalysts such as MnO2 always play a critical role in catalytic ozonation, which is applied extensively water treatment for disinfection, odor removal and organic pollutants degradation. To improve the performance of we design synthesize catalyst amino-functionalized hybrid graphene oxide (MnO2-NH2-GO) with hydrothermal method, then use it to catalyze ozonation cephalexin (CLX), one β-lactams antibiotics frequently detected refractory aquatic environment. The MnO2-NH2-GO shows much higher than both MnO2-GO CLX, free radicals ·O2− dominated Mn3+/Mn4+ acting active sites react ozone promote formation help enhanced electron transfer facilitated by GO. also more stable due strong covalent bonds bridged amino GO prevent decoupling from MnO2. This work provides method smart high stability.