Catalytic membranes combine catalytic activity with conventional filtration membranes, thus enabling diverse attractive benefits into the conventional membrane filtration processes, such as easy catalyst reuse, antifouling, anti-microbial, and enhancing process efficiency. Up to date, tremendous progresses have been made on functional catalytic membrane preparation and applications, which significantly advances the competitiveness of membrane technologies in process industries. The present article provides a critical and holistic overview of the current state of knowledge on existing catalyst coating techniques for functional catalytic membrane development. Based on coating mechanisms, the techniques are generally categorized into physical and chemical surface coating routes. For each technique, we first introduce fundamental principle, followed by a critical discussion of their applications with representative case studies. Advantages and drawbacks are also emphasized for different surface coating technologies. Finally, future perspectives are highlighted to provide deep insights into their future developments.

催化膜将催化活性与常规过滤膜结合在一起，从而使常规膜过滤工艺具有多种诱人的优势，例如易于重复使用催化剂，防污，抗微生物和提高工艺效率。迄今为止，在功能性催化膜的制备和应用方面已经取得了巨大的进步，这大大提高了膜技术在加工业中的竞争力。本文提供了有关功能性催化膜开发的现有催化剂涂层技术的当前知识现状的重要而全面的概述。基于涂覆机理，该技术通常分为物理和化学表面涂覆路线。对于每种技术，我们首先介绍基本原理，其次是具有代表性的案例研究，以讨论其应用。对于不同的表面涂层技术也强调了优点和缺点。最后，突出显示了未来的观点，以提供对其未来发展的深刻见解。