文献类型：期刊文献

英文题名：Hydrocyclone-enhanced scalable photocatalytic hydrogen generation, from macroscale turbulence to nanoscale reaction dynamics

作者：Yang, Danhui[1];Yang, Yizhou[1];Zhou, Fanghe[1];Deng, Zhuofan[1];Cui, Chuanjie[2];Li, Jianping[3];Fu, Pengbo[1];Ma, Mingze[4];Lv, Wenjie[1];Zhang, Zhengdai[1];Yang, Xuejing[1];Wang, Hualin[1]

机构：[1]East China Univ Sci & Technol, Natl Engn Res Ctr Ind Wastewater Detoxicat & Resou, Shanghai, Peoples R China;[2]Univ Oxford, Dept Engn Sci, Oxford, England;[3]Sichuan Univ, Coll Carbon Neutral Future Technol, Chengdu, Peoples R China;[4]Nanjing Univ Aeronaut & Astronaut, Coll Gen Aviat & Flight, Liyang, Peoples R China

年份：2026

卷号：17

期号：1

外文期刊名：NATURE COMMUNICATIONS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001714868300004)】；

基金：This work was supported by National Natural Science Foundation of China (52400080).

语种：英文

摘要：Photocatalytic hydrogen production faces barriers to industrialization, including inadequate light absorption and limited mass/momentum transfer at scale. Integrating external hydrocyclones into photoreactors is a promising solution, yet the multiscale complexity of hydrocyclone-driven hydrogen generation impedes mechanistic understanding and rational system design. Herein, we build a scalable hydrocyclone-based photoreactor that achieves 270 mL/h hydrogen yield and 5.26% solar-to-hydrogen efficiency under simulated sunlight, as 4.5 times higher than static conditions. We develop a hierarchical multiscale model combining computational fluid dynamics, solid mechanics and density functional theory, which connects macro-scale hydrocyclone flow strain to atomic-level photocatalytic processes. Here, we show that shear stress-induced nanoscale lattice restructuring of the catalyst modulates photoexcitation pathways, triggers a threshold-activated catalytic amplification effect, and identifies an optimal flow rate of 20-30 L/min. These findings reveal a multiscale force-chemical coupling mechanism linking reactor-scale hydrocyclone flow fields to lattice-scale strain-driven catalytic enhancement, guiding large-scale photocatalytic hydrogen production.