Yang Yawei, Wu Tao, Que Wenxiu
Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education, International Center for Dielectric Research, Shaanxi Engineering Research Center of Advanced Energy Materials and Devices, School of Electronic Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China.
Materials (Basel). 2022 Mar 27;15(7):2466. doi: 10.3390/ma15072466.
Photocatalytic technology using semiconductor catalysts is a promising candidate for light-polluted water treatment. In the past decades, TiO-related nanomaterials and photocatalytic devices have been applied for sewage ex-situ treatment. However, in situ photocatalytic technology using functional membranes is still needed for many large-scale outdoor scenarios. This work successfully fabricated a robust reusable photocatalytic membrane by firmly immobilizing TiO nanoparticles on polymer membranes, supported by various plastic substrates, through an industrial membrane blowing process. The as-fabricated photocatalytic membrane was fabricated by all low-cost and eco-friendly commercial materials and exhibited stable photocatalytic performance in domestic sewage in situ treatment in natural conditions. This work is expected to promote the photocatalytic membrane for practical application.
使用半导体催化剂的光催化技术是处理光污染水的一个有前途的候选方法。在过去几十年中，与TiO相关的纳米材料和光催化装置已应用于污水的异位处理。然而，对于许多大规模户外场景，仍需要使用功能膜的原位光催化技术。这项工作通过工业吹膜工艺，将TiO纳米颗粒牢固地固定在由各种塑料基材支撑的聚合物膜上，成功制备了一种坚固的可重复使用的光催化膜。所制备的光催化膜由所有低成本且环保的商业材料制成，在自然条件下对生活污水的原位处理中表现出稳定的光催化性能。这项工作有望推动光催化膜的实际应用。
