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将四(4-硝基苯基)钴卟啉(Co-TNPP)负载在氧化锌(Zn O)载体制备负载型金属卟啉催化剂Co-TNPP/Zn O,并对其进行了紫外-可见漫反射光谱(UV-vis),红外光谱(FT-IR),X射线衍射(XRD),热重分析(TG/DTG),比表面分析(BET)和电感耦合等离子体(ICP)表征.考察了催化剂在无溶剂的条件下催化氧气氧化环己烷的性能.实验结果表明:在反应温度为150℃,氧气压力为1.2 MPa,反应时间为2.0 h的条件下,环己烷转化率9.82%,环己醇和环己酮选择性83.37%.负载型金属卟啉催化剂经过5次循环使用,环己烷的平均转化率和环己醇、环己酮平均选择性分别为9.95%、83.61%,催化剂的平均转化数为2.18×105.负载型金属卟啉催化剂Co-TNPP/Zn O在较温和的条件下表现出优良的环己烷催化氧化性能,克服了金属卟啉催化剂难以回收、无法循环使用的缺点,具有很好的工业价值和应用前景.
Tetra (4-nitrophenyl) porphyrin (Co-TNPP) was supported on a zinc oxide (ZnO) support to prepare a supported metalloporphyrin catalyst Co-TNPP / Zn O and UV- UV-vis, FT-IR, XRD, TG / DTG, BET and ICP were used to investigate the effect of The results showed that the conversion of cyclohexane was 9.82% under the conditions of reaction temperature of 150 ℃, oxygen pressure of 1.2 MPa and reaction time of 2.0 h, Cyclohexanone and cyclohexanone were 83.37% .The average conversion of cyclohexane and cyclohexanol and cyclohexanone were 9.95% and 83.61%, respectively, after 5 cycles of using supported metalloporphyrin catalyst. The catalyst The average number of conversions was 2.18 × 105. The supported metalloporphyrins Co-TNPP / Zn O showed excellent catalytic performance for cyclohexane oxidation under mild conditions, which overcomes the difficulty of recovery of metalloporphyrin catalysts and can not be recycled The shortcomings, with good industrial value and application prospects.