A photoreactor packed with glass beads coated by palladium nanoparticles‐modified BiVO₄ was tested and analyzed in phenol degradation under UV–Visible light. The photocatalytic activity of Pd‐BiVO₄ under visible light is higher than TiO₂ under UV light, as we previously reported. In this work, we try to use the Pd‐BiVO₄ in a large scale by coating the glass beads with it, a potentially industrial‐scale use. For comparison, a flat‐plate reactor and a slurry reactor were also examined. The photocatalytic activity of Pd‐BiVO₄ in phenol degradation was found to be higher than that of TiO₂ in all systems (slurry, flat‐plate, and packed beads reactor [PBR]). Furthermore, PBR exhibited higher energy efficiency compared to the flat‐plate reactor in phenol oxidation. The superior performance of this reactor is due primarily to the highly exposed catalyst surface area, high mass transfer coefficient, and effective delivery of both photons and reactants to the catalyst surfaces. © 2018 American Institute of Chemical Engineers AIChE J, 65: 132–139, 2019

中文翻译：

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装有Pd-BiVO4涂层玻璃珠的光反应器的实验分析

测试并填充了由钯纳米粒子改性的BiVO ₄包覆的玻璃珠的光反应器，并在紫外可见光下分析了苯酚的降解情况。如我们先前报道，可见光下Pd-BiVO ₄的光催化活性高于紫外光下的TiO ₂。在这项工作中，我们尝试通过在玻璃珠上涂覆Pd-BiVO ₄来大规模使用Pd-BiVO ₄，这可能是工业规模的用途。为了进行比较，还检查了平板反应器和淤浆反应器。发现Pd-BiVO ₄对苯酚降解的光催化活性高于TiO ₂在所有系统中（浆液，平板和填充珠粒反应器[PBR]）。此外，与平板反应器相比，PBR在苯酚氧化方面显示出更高的能效。该反应器的优越性能主要归因于高度暴露的催化剂表面积，高的传质系数以及光子和反应物两者向催化剂表面的有效输送。©2018美国化学工程师学会AIChE J，65：132–139，2019