Wang Yuanfang, Wu Zheng, Hong Siqi, Zhu Ziqi, Wu Siqi, Chen Biao, Jia Yanmin
Xi'an Key Laboratory of Textile Chemical Engineering Auxiliaries, School of Environmental and Chemical Engineering, Xi'an Polytechnic University, Xi'an 710048, China.
Quantum Materials and Devices Key Laboratory of Shaanxi Province's High Education Institution, School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710119, China.
Nanomaterials (Basel). 2025 Aug 6;15(15):1206. doi: 10.3390/nano15151206.
Mechanical friction offers a frequent approach for sustainable energy harvesting, as it can be captured and transformed into electricity by means of the triboelectric phenomenon. Theoretically, this electricity may subsequently be employed to drive electrochemical water purification processes. Herein, the experimental results confirm that the SiC particles effectively trigger the tribocatalytic decomposition of Rhodamine B (RhB). During the tribocatalytic decomposition of dye, mechanical friction is generated at the contact surface between the tribocatalyst and a custom-fabricated polytetrafluoroethylene (PTFE) rotating disk, under varying conditions of stirring speed, temperature, and pH value. Hydroxyl radicals and superoxide radicals are confirmed as the dominant reactive species participating in tribocatalytic dye decomposition, as demonstrated by reactive species inhibition experiments. Furthermore, the SiC particles demonstrate remarkable reusability, even after being subjected to five consecutive recycling processes. The exceptional tribocatalytic performance of SiC particles makes them potentially applicable in water purification by harnessing environmental friction energy.
机械摩擦为可持续能量收集提供了一种常见方法，因为它可以通过摩擦电现象被捕获并转化为电能。理论上，这种电能随后可用于驱动电化学水净化过程。在此，实验结果证实碳化硅颗粒能有效引发罗丹明B（RhB）的摩擦催化分解。在染料的摩擦催化分解过程中，在不同的搅拌速度、温度和pH值条件下，摩擦催化剂与定制的聚四氟乙烯（PTFE）旋转盘之间的接触表面会产生机械摩擦。通过活性物种抑制实验表明，羟基自由基和超氧自由基被确认为参与摩擦催化染料分解的主要活性物种。此外，即使经过连续五次循环过程，碳化硅颗粒仍表现出显著的可重复使用性。碳化硅颗粒卓越的摩擦催化性能使其有可能通过利用环境摩擦能应用于水净化。
