paper Sustainable self-powered electro-Fenton degradation using N, S co-doped porous carbon catalyst fabricated with adsorption-pyrolysis-doping strategy
paper Sustainable self-powered electro-Fenton degradation using N, S co-doped porous carbon catalyst fabricated with adsorption-pyrolysis-doping strategy
复制标题
采用吸附-热解-掺杂策略制备的 N、S 共掺杂多孔碳催化剂实现可持续自供电电 Fenton 降解
DOI：
10.1016/j.nanoen.2020.105623
复制
发表时间：
2021-03-01
期刊：
影响因子：
17.6
通讯作者：
Gao, Shuyan
中科院分区：
文献类型：
--
作者：
Chen, Chen;Zhu, Yingzheng;Gao, Shuyan
采用自供电电芬顿（EF）系统彻底降解工业废水中的难降解污染物的主要挑战是开发高活性和高选择性的2 e（-）氧还原催化剂和可控输出功率的摩擦电纳米发电机系统以收集环境可用和可再生的机械能。因此，我们提出了吸附-热解-掺杂的策略来定制生物质衍生的毛白杨多孔碳催化剂的C-S-C/S-C物种的含量和孔径，以实现H2 O2电合成的活性和选择性，并开发了3D打印旋转碾压摩擦电纳米发电机（RRC-TENG）作为电源，瞬时短路电流为285 μ A，开路电压为500 V，转移电荷为1.32 μ C，最佳输出功率密度为3.0 W m（-2），自供电EF降解抗性混合碱性染料（MB、MO和MG），45 min内脱色率达97.8%。本工作不仅实现了吸附-热解-掺杂策略的高附加值炭催化剂的可控合成，而且使EF系统向以RRC-TENG替代传统电源发展可持续的自供电降解的方向前进，有利于大规模处理高浓度废弃物的工业废水。
A chief challenge of employing self-powered electro-Fenton (EF) system for drastically degrading stubborn pollutants in industrial wastewater is to develop the catalysts with high activity and selectivity in 2e(-) oxygen reduction and the controllable output power of triboelectric nanogenerator system for collecting ambient available and renewable mechanical energy. Herein, we propose the adsorption-pyrolysis-doping strategy to tailor the content of C-S-C/S-C species and pore sizes of biomass-derived N, S-doped porous carbon catalyst from populus tomentosa to achieve the activity and selectivity of H2O2 electrosynthesis and develop a 3D printed revolving roller-compacted triboelectric nanogenerator (RRC-TENG) as an electric supply with instantaneous short circuit current of 285 mu A, open circuit voltage of 500 V, transferred charge of 1.32 mu C, and the optimum output power density of 3.0 W m(-2), to self-power EF degradation of resistant mixed basic dyes (MB, MO and MG), whose decolorization efficiency is up to 97.8% within 45 min. This work not only realizes the controllable synthesis of high value-added carbon catalysts via adsorption-pyrolysis-doping strategy, but also advances the EF system with a direction to develop the sustainable self-powered degradation by RRC-TENG replacing the traditional power sources, which makes for massively treating industrial wastewater with high-concentration wastes.