Abstract Friction energy is well-known common clean energy and can be harvested via triboelectricity. In this study, hydrothermally synthesized zinc oxide nanorods exhibit excellent tribo-catalytic dye decomposition performance via harvesting friction energy, which is obtained by stirring. After 60 h of stirring, tribo-catalytic dye decomposition ratio is as high as ~ 99.8%. Strong tribo-catalytic performance can be ascribed to the triboelectric effect, which originates from the friction between zinc oxide nanorods and stirring rods. Intermediate active species hydroxyl radicals are further observed via fluorescence method, in which the number of hydroxyl radicals continuously increases with increasing stirring time. Besides, zinc oxide nanorods also exhibit good recycling utilization property after three consecutive catalytic experiments. Strong tribo-catalytic performance and good recycling utilization property of zinc oxide nanorods make it potential in utilizing friction energy in our environment to achieve dye wastewater purification in near future.

中文翻译：

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通过摩擦电收集摩擦能对氧化锌纳米棒的强摩擦催化

摘要 摩擦能是众所周知的常见清洁能源，可以通过摩擦电获得。在这项研究中，水热合成的氧化锌纳米棒通过收集摩擦能而表现出优异的摩擦催化染料分解性能，摩擦能是通过搅拌获得的。搅拌60小时后，摩擦催化染料分解率高达~99.8%。强大的摩擦催化性能可归因于摩擦电效应，该效应源于氧化锌纳米棒和搅拌棒之间的摩擦。通过荧光法进一步观察中间活性物质羟基自由基，其中羟基自由基的数量随着搅拌时间的增加而不断增加。此外，氧化锌纳米棒在连续三个催化实验后也表现出良好的回收利用性能。