Incorporating metal nanoparticles into polymer membranes can endow the membranes with additional functions. This work explores the development of catalytic polymer membrane through synthesis of palladium nanoparticles based on the approaches of intermatrix synthesis (IMS) inside surface functionalized polyethersulfone (PES) membrane and its application to liquid phase reactions. Flat sheet PES membranes have been successfully modified via UV-induced graft polymerization of acrylic acid monomer. Palladium nanoparticles have been synthesized by chemical reduction of palladium precursor loaded on surface modified membranes, an approach to the design of membranes modified with nanomaterials. The catalytic performances of the nanoparticle incorporated membranes have been evaluated by the liquid phase reduction of -nitrophenol using NaBH₄ as a reductant in flow-through membrane reactor configuration. The nanocomposite membranes containing palladium nanoparticles were catalytically efficient in achieving a nearly 100% conversion and the conversion was found to be dependent on the flux, amount of catalyst, and initial concentration of nitrophenol. The proposed mathematical model equation represents satisfactorily the reaction and transport phenomena in flow-through catalytic membrane reactor.

中文翻译：

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用于液相反应的流通式聚合物膜反应器的开发：实验研究和数学建模

将金属纳米颗粒结合到聚合物膜中可以赋予膜额外的功能。这项工作探索基于表面功能化聚醚砜（PES）膜内部的基质间合成（IMS）方法，通过钯纳米颗粒的合成来催化聚合物膜的开发及其在液相反应中的应用。平板PES膜已通过紫外线诱导的丙烯酸单体接枝聚合成功改性。通过化学还原负载在表面改性膜上的钯前驱体可以合成钯纳米颗粒，这是一种设计纳米材料改性膜的方法。纳米粒子结合膜的催化性能已通过液相还原硝基苯酚，在流通膜反应器配置中使用NaBH ₄作为还原剂。含有钯纳米颗粒的纳米复合膜在催化效率上达到近100％的转化率，发现转化率取决于通量，催化剂量和硝基苯酚的初始浓度。所提出的数学模型方程式令人满意地表示了流通式催化膜反应器中的反应和传输现象。