Shen Shen, Fu Jiajia, Yi Jia, Ma Liyun, Sheng Feifan, Li Chengyu, Wang Tingting, Ning Chuan, Wang Hongbo, Dong Kai, Wang Zhong Lin
CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-Nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 100083, People's Republic of China.
Jiangsu Engineering Technology Research Centre for Functional Textiles, Jiangnan University, No.1800 Lihu Avenue, Wuxi, People's Republic of China.
Nanomicro Lett. 2021 Sep 14;13(1):194. doi: 10.1007/s40820-021-00695-3.
It is of great importance to explore a creative route to improve the degradation efficiency of organic pollutants in wastewater. Herein, we construct a unique hybrid system by combining self-powered triboelectric nanogenerator (TENG) with carbon dots-TiO sheets doped three-dimensional graphene oxide photocatalyst (3DGA@CDs-TNs), which can significantly enhance the degradation efficiency of brilliant green (BG) and direct blue 5B (DB) owing to the powerful interaction of TENG and 3DGA@CDs-TNs photocatalyst. The power output of TENG can be applied for wastewater purification directly, which exhibits a self-powered electrocatalytic technology. Furthermore, the results also verify that TENG can replace conventional electric catalyst to remove pollutants effectively from wastewater without any consumption. Subsequently, the unstable fragments and the plausible removal pathways of the two pollutants are proposed. Our work sheds light on the development of efficient and sustainable TENG/photocatalyst system, opening up new opportunities and possibilities for comprehensive utilization of random energy.
探索一条创新途径来提高废水中有机污染物的降解效率具有重要意义。在此，我们通过将自供电摩擦纳米发电机（TENG）与掺杂碳点的三维氧化石墨烯光催化剂（3DGA@CDs-TNs）相结合构建了一个独特的混合系统，由于TENG与3DGA@CDs-TNs光催化剂之间的强大相互作用，该系统能够显著提高亮绿（BG）和直接蓝5B（DB）的降解效率。TENG的功率输出可直接用于废水净化，这展示了一种自供电电催化技术。此外，结果还证实TENG可以替代传统电催化剂，在不消耗任何能源的情况下有效去除废水中的污染物。随后，提出了两种污染物的不稳定碎片和可能的去除途径。我们的工作为高效且可持续的TENG/光催化剂系统的发展提供了思路，为随机能量的综合利用开辟了新的机遇和可能性。
