Adsorption of PPL on a high thermal stable DUT-5 and their catalytic activity in a transesterification reaction of cinnamyl alcohol and vinyl acetate

IF 1.2 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Functional Materials Letters Pub Date : 2023-10-21 DOI:10.1142/s1793604723500224

Xiaolin Zhou, Jingxiao Zheng, Xia Zhang

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引用次数: 0

Abstract

Lipase-assisted catalytic esterification reactions have been concentrated on due to their green synthetic route for cinnamate acetate. In this paper, a high thermal stable Al-MOF (DUT-5) was chosen as a carrier to immobilize Porcine pancreatic lipase (PPL), and the resulting composites of PPL@DUT-5 were then employed in the catalytic transesterification reaction of cinnamyl alcohol and vinyl acetate. The adsorption conditions of PPL on the surface of DUT-5 were varied to optimize PPL loading uptakes, the adsorption kinetics were analyzed to explore the adsorption behavior of PPL on the DUT-5. In the catalytic transesterification reaction, the resulting PPL@DUT-5 represents the prominent enhanced catalytic stability under a varied reaction condition but with a higher catalytic activity, such as under the relative wide optimum pH value and at the increased operation temperature. And, the good reusability of the PPL@DUT-5 in cyclic catalytic processes highlights their prospect applications in the practical organic conversion reactions.

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高热稳定DUT-5对PPL的吸附及其在肉桂醇与醋酸乙烯酯交换反应中的催化活性

脂肪酶辅助催化酯化反应因其合成肉桂酸酯的绿色路线而备受关注。本文以高热稳定的Al-MOF (DUT-5)为载体，固定化猪胰脂肪酶(PPL)，并将合成的PPL@DUT-5复合材料用于肉桂醇与醋酸乙烯酯的催化酯交换反应。通过改变PPL在DUT-5表面的吸附条件，优化PPL在DUT-5表面的吸附量，分析吸附动力学，探讨PPL在DUT-5表面的吸附行为。在催化酯交换反应中，得到的PPL@DUT-5在不同的反应条件下都表现出明显的催化稳定性增强，但在较宽的最佳pH值和较高的操作温度下都具有较高的催化活性。同时，PPL@DUT-5在循环催化过程中良好的可重复使用性突出了其在实际有机转化反应中的应用前景。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Functional Materials Letters 工程技术-材料科学：综合

CiteScore

2.40

自引率

7.70%

发文量

审稿时长

1.9 months

期刊介绍： Functional Materials Letters is an international peer-reviewed scientific journal for original contributions to research on the synthesis, behavior and characterization of functional materials. The journal seeks to provide a rapid forum for the communication of novel research of high quality and with an interdisciplinary flavor. The journal is an ideal forum for communication amongst materials scientists and engineers, chemists and chemical engineers, and physicists in the dynamic fields associated with functional materials. Functional materials are designed to make use of their natural or engineered functionalities to respond to changes in electrical and magnetic fields, physical and chemical environment, etc. These design considerations are fundamentally different to those relevant for structural materials and are the focus of this journal. Functional materials play an increasingly important role in the development of the field of materials science and engineering. The scope of the journal covers theoretical and experimental studies of functional materials, characterization and new applications-related research on functional materials in macro-, micro- and nano-scale science and engineering. Among the topics covered are ferroelectric, multiferroic, ferromagnetic, magneto-optical, optoelectric, thermoelectric, energy conversion and energy storage, sustainable energy and shape memory materials.