The development of large-scale, binder-free photocatalyst panels, resembling solar panels, is highly appealing, which, along with efficient light management and easy recycling, offers great simplicity by configuring them in a flow-reactor. Here, we report a facile and scalable method for binder-free flat and porous melon-type polymeric carbon nitride (CN) panels with tunable structural and photophysical properties. The CN panel exhibits good photoactivity in a homemade bench-scale reactor for several important catalytic reactions: the production of hydrogen peroxide in concentrations that meet industrial requirements; biomass-derived 5-hydroxymethyfurfural (HMF) oxidation to 2,5-diformylfuran (DFF) under visible light, resulting in a high HMF conversion rate of 1185 μmol h^–1 g^–1, achieved in heterogeneous photocatalysis with a DFF yield of 13% after 24 h under continuous-flow conditions (1 mL min^–1); and hydrogen production. The binder-free deposition method and its good photocatalytic activity broaden avenues for CN photocatalyst-based and other semiconductor panels toward multiple energy-related applications.

中文翻译：

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用于连续流光催化的无粘合剂氮化碳面板


类似于太阳能电池板的大型无粘合剂光催化剂面板的开发非常有吸引力，它与高效的光管理和易于回收一起，通过在流动反应器中配置它们提供了极大的简单性。在这里，我们报告了一种简便且可扩展的方法，用于无粘合剂平面和多孔瓜型聚合氮化碳（CN）面板，具有可调节的结构和光物理性能。 CN面板在自制的小型反应器中表现出良好的光活性，可用于几个重要的催化反应：生产浓度满足工业要求的过氧化氢；生物质来源的5-羟甲基糠醛（HMF）在可见光下氧化为2,5-二甲酰呋喃（DFF），导致HMF转化率高达1185 μmol h ^–1 g ^–1 ，在连续流动条件下（1 mL min ^–1 ）24小时后实现非均相光催化，DFF产率为13%；和氢气生产。无粘合剂沉积方法及其良好的光催化活性为 CN 光催化剂和其他半导体面板向多种能源相关应用拓宽了途径。