硫化镉固载钴卟啉催化氧化环己烷的性能研究  

Studies on the catalytic performance of cobalt porphyrin immobilized on cadmium sulfide for oxidation of cyclohexane

作　　者：李佩兰 黄冠[1] 刘鹏 彭舒婷 黄嘉嘉 罗煜辉 LI Pei-lan;HUANG Guan;LIU Peng;PENG Shu-ting;HUANG Jia-jia;LUO Yu-hui(College of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China)

机构地区：[1]广西大学化学化工学院,广西南宁530004

出　　处：《广西大学学报（自然科学版）》2021年第4期1072-1082,共11页Journal of Guangxi University（Natural Science Edition）

基　　金：国家自然科学基金资助项目(51363001);广西自然科学基金资助项目(2014GXNSFDA118009);大学生创新创业训练计划(202010593035)。

摘　　要：为了充分发挥钴卟啉(Co PP)的催化性能,利用轴向配位作用将钴卟啉固载到介孔载体材料上。模拟细胞色素P-450酶中半胖氨酸与血红素中心铁离子的轴向配位作用及其空腔功能,形成介孔仿生催化材料Co PP/mp-CdS,并用于催化分子氧氧化环己烷的研究。结果表明:在最佳反应(温度165℃,压力0.8 MPa,催化剂量0.5 mg,反应时间4 h)条件下,催化材料可循环利用5次,平均环己烷的转化率和醇酮产率分别为35.0%和18.7%。Co PP/mp-CdS是一种良好的催化材料,相比于Co PP的催化性能更优越。This research aims to improve the catalytic performance of Co(Ⅲ)protoporphyrin IX chloride(Co PP).Simulating the axial coordination of the cysteine and the cavity function in cytochrome P-450 enzyme,the metal porphyrin was immobilized on mesoporous cadmium sulfide to form a mesoporous biomimetic catalyst material(Co PP/mp-CdS).The catalyst material(Co PP/mp-CdS)was characterized by various characterization techniques and used for studying its catalysis of cyclohexane oxidation using molecular oxygen.The results show that under the optimum reaction conditions(temperature 165℃,pressure 0.8 MPa,amount of catalyst 0.5 mg,reaction time 4 h),it could be recycled five times.On average,the conversion of cyclohexane and the yield of alcohol and ketone were 35.0%and 18.7%,respectively.The Co PP/mp-CdS proves to be an excellent catalyst.

关 键 词：介孔硫化镉 钴卟啉 环己烷 催化氧化 

分 类 号：O643.3[理学—物理化学]