Co/In 掺杂多孔炭活化过硫酸盐氧化环己醇制备环己酮

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图分类号：TQ028.8 文献标志码：A DOI：10.3969/j.issn.1003-9015.2025.03.010

Abstract：To addressthe safety risks related to the storage and transportof oxidants used in theselective oxidation of cyclohexanol to cyclohexanone，where hydrogen peroxide serves as the oxidant，a suggestion is put forth.This involves the establishment of aselective catalytic oxidation system that employs persulfates as the oxidant.Here，Co/In bimetalic doped porous carbon catalyst（Co/In-NC）was prepared using ZIF-9 asa template，and the structure of the catalyst was characterized.The performance and mechanism ofCo/In-NC activated peroxydisulfate （PDS） in the selective oxidation of cyclohexanol to produce cyclohexanone were thoroughly investigated.The results indicated that the catalyst，at a concentration of 100mg⋅L-1 ，reacted at for 2 hours， achieving a cyclohexanol conversion of 53.3% and cyclohexanone selectivity of 99.4% ．Moreover，the selectivity remained above 90% after three cycles of the oxidation reaction.The reaction was consistent with the zero-order kinetic model. The reaction proceeded through various reactive oxygen species （ROS） including hydroxyl radicals （ ⋅⋅ OH），superoxide radicals （⋅02-） ），and singlet oxygen （102 ）． The redox cycles of Co3+/Co2+/Co0 and In 3+ / （202 In0 effectively activated the PDS，ensuring high conversion of cyclohexanol to cyclohexanone with high selectivity.

Key words：catalyst； potassium persulfate； oxidation； cyclohexanol； cyclohexanone

1前言

环己酮作为一种重要的有机化工产品，主要用于生产己二酸和 ε -己内酰胺，而后者主要用于合成尼龙-6和尼龙 -66[1-4] 。（剩余17651字）