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Synthesis and Sulfonation of an Aluminum-Based Metal–Organic Framework with Microwave Method and Using for the Esterification of Oleic Acid
Journal of Inorganic and Organometallic Polymers and Materials ( IF 3.9 ) Pub Date : 2021-05-25 , DOI: 10.1007/s10904-021-02027-9
Cihan Gecgel , Meral Turabik

In this study, the synthesis of MIL-53(Al) (Material Institute Lavoisier, MIL) material, which is an aluminum-containing metal–organic framework (MOF) and generally produced using the solvothermal method was carried out by microwave method at different synthesis times (30–180 min) and temperatures (120–180 °C). In order to improve the catalytic activity of the MIL-53(Al), it was functionalized by applying sulfonation process and SO3-MIL-53(Al) material was also provided. It has been observed that the changing in the synthesis time and temperature cause changes in the morphologies, surface areas and thermal resistance. The highest surface area value was obtained as 1256.3 m2/g at 180 °C–180 min synthesis condition. MIL-53(Al) and SO3-MIL-53(Al) were investigated as catalysts for the esterification of the oleic acid with methanol by designing response surface methodology (RSM). The SO3-MIL-53(Al) catalyst provided higher conversion of oleic acid to ester than MIL-53(Al) as 97.2% and 65.9%, respectively. The oleic acid esterification reaction for MIL-53(Al) and SO3-MIL-53-(Al) followed the pseudo-first-order kinetics and activation energy values were determined as 22.87 kJ mol−1 and 16.14 kJ mol−1, respectively.



中文翻译:

微波法合成铝基金属有机骨架及其磺化反应及其在油酸酯化反应中的应用

在这项研究中,MIL-53(Al)(材料研究所Lavoisier,MIL)材料的合成是通过微波方法在不同温度下进行的,该材料通常是使用溶剂热法生产的,是一种含铝的金属-有机骨架(MOF)。合成时间(30–180分钟)和温度(120–180°C)。为了提高MIL-53(Al)的催化活性,通过应用磺化工艺使其功能化,并提供了SO 3 -MIL-53(Al)材料。已经观察到,合成时间和温度的变化引起形态,表面积和热阻的变化。在180°C–180分钟的合成条件下,获得的最高表面积值为1256.3 m 2 / g。MIL-53(Al)和SO 3通过设计响应面方法(RSM)研究了-MIL-53(Al)作为油酸与甲醇酯化的催化剂。与MIL-53(Al)相比,SO 3 -MIL-53(Al)催化剂提供的油酸向酯的转化率更高,分别为97.2%和65.9%。MIL-53(Al)和SO 3 -MIL-53-(Al)的油酸酯化反应遵循拟一级动力学,活化能值分别为22.87 kJ mol -1和16.14 kJ mol -1,分别。

更新日期:2021-05-25
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