Hydrothermal synthesis of tin containing mesoporous silicas and their catalytic performance over Baeyer-Villiger oxidation of cyclohexanone to ε-caprolactone: comparison of Sn/MCM-41 and Sn/SBA-15

被引：18

作者：

Chen, Tian ^{[1
]}

Wang, Bendong ^{[1
]}

Li, Yongchao ^{[1
]}

Liu, Lei ^{[1
]}

Qiu, Shufan ^{[1
]}

机构：

[1] Nanjing Univ Aeronaut & Astronaut, Coll Mat Sci & Technol, Nanjing 210016, Jiangsu, Peoples R China

来源：

JOURNAL OF POROUS MATERIALS | 2015年 / 22卷 / 04期

关键词：

SBA-15; MCM-41; Baeyer-Villiger oxidation; Cyclohexanone; epsilon-Caprolactone; DENDRITIC SN COMPLEXES; HYDROGEN-PEROXIDE; MOLECULAR-SIEVES; KETONES; CONVERSION; EFFICIENT; CHLORIDE; ZEOLITE; CENTERS; MCM-41;

D O I：

10.1007/s10934-015-9968-y

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

In this work, a series of tin containing mesoporous silicas (Sn/MCM-41 and Sn/SBA-15) were prepared by a one-pot hydrothermal method and their physical and chemical properties were characterized by various techniques such as powder X-ray diffraction, nitrogen adsorption-desorption and transmission electron microscopy. Among these catalysts, Sn/SBA-15(50) exhibited the highest catalytic activity for Baeyer-Villiger oxidation of cyclohexanone to epsilon-crolactone using hydrogen peroxide (H2O2) as the green oxidant. The best methodology was to carry out the reaction in 1,4-dioxane under 10 wt% Sn/SBA-15 catalyst of 0.1 mol cyclohexanone at 70 A degrees C for 4 h, and a molar ratio cyclohexanone: oxidant of 1:3. Furthermore, this heterogeneous mesoporous Sn/SBA-15 catalyst was reusable without any appreciable loss in activity and selectivity after three cycles.

引用

页码：949 / 957

页数：9

共 36 条

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