Abstract:The development of efficient catalytic materials for the degradation of nitro-containing organic pollutants is of key significance for promoting the development of green chemistry and chemical industry. Cobalt-copper layered bimetallic hydroxides (CuCoLDHs) were synthesized by water bath for 4-NP catalytic reduction of 4-AP. XRD, FT-IR, SEM, and ICP were used to characterize the crystal structure and surface morphology of the materials. At the same time, the effects of catalyst usage, initial concentration, temperature and sodium borohydride (NaBH4) concentration on the catalytic reduction performance of CuCo-LDHs were systematically studied. The results showed that CuCo-LDHs showed high catalytic activity in the reaction of 4-NP catalytic reduction, and its reaction conditions were mild and the products were non-polluting. 10 mg CuCo-LDHs can effectively reduce 100 mmol/L of 0.10 mmol/L 4-NP at 3 mins at room temperature, with a conversion rate of 95%. Finally, the reaction mechanism of CuCo-LDHs catalytic reduction of 4-NP to 4-AP was analyzed and discussed.