Ying Rushun, Ma Mingyang, Zhao Xinze, Dong Yang, Zhang Xiaolong, Gao Zhenjun
Hubei Key Laboratory of Hydroelectric Machinery Design & Maintenance, China Three Gorges University, Yichang 443002, China.
College of Mechanical and Power Engineering, China Three Gorges University, Yichang 443002, China.
Langmuir. 2025 Apr 29;41(16):10434-10442. doi: 10.1021/acs.langmuir.5c00337. Epub 2025 Apr 16.
Contact-electro-catalysis (CEC) has emerged as a novel approach for catalyzing redox reactions. However, there is still significant room for enhancing the catalytic efficiency of CEC. Here, an organic degradation device that combines water atomization and CEC based on a gas-liquid two-phase flow-based triboelectric nanogenerator (GL-TENG) was designed. When using 8 mg/L of crystal violet (CV) as the target dye and the airflow velocity reaches 30 m/s, the degradation rate constant is as high as 73.15 min, significantly exceeding existing contact electrocatalytic efficiencies. The impact of the dye concentration on the output performance of GL-TENG was investigated. It shows a good linear relationship between the concentration and the output signal of the GL-TENG. Real-time monitoring of dye concentration can be achieved using the output signal of the GL-TENG located at the end of the tube. These experimental results not only offer an ultrafast method for degrading organic dyes but also provide new insights into the interactions between dye solutions and solid surfaces.
接触电催化（CEC）已成为催化氧化还原反应的一种新方法。然而，提高CEC的催化效率仍有很大空间。在此，设计了一种基于气液两相流摩擦纳米发电机（GL-TENG）的结合水雾化和CEC的有机降解装置。当使用8mg/L的结晶紫（CV）作为目标染料且气流速度达到30m/s时，降解速率常数高达73.15min，显著超过现有的接触电催化效率。研究了染料浓度对GL-TENG输出性能的影响。结果表明，GL-TENG的浓度与输出信号之间具有良好的线性关系。利用位于管末端的GL-TENG的输出信号可以实现对染料浓度的实时监测。这些实验结果不仅提供了一种降解有机染料的超快方法，还为染料溶液与固体表面之间的相互作用提供了新的见解。
