The Key Laboratory of Water and Sediment Sciences, Ministry of Education, School of Environment, Beijing Normal University, Beijing 100875, PR China; School of Life and Environmental Science, Wenzhou University, Wenzhou 325035, PR China; National and Local Joint Engineering Research Center of Ecological Treatment Technology for Urban Water Pollution, Wenzhou 325035, PR China.
The Key Laboratory of Water and Sediment Sciences, Ministry of Education, School of Environment, Beijing Normal University, Beijing 100875, PR China.
Sci Total Environ. 2022 Sep 15;839:156277. doi: 10.1016/j.scitotenv.2022.156277. Epub 2022 May 26.
The water and energy crises are becoming increasingly serious with rapid population and economic development. It is urgent to develop new wastewater treatment technologies with high efficiency and low energy consumption. Herein, a solar-salinity nexus cell (called PRC) integrated by a photocatalytic fuel cell and reverse electrodialysis was combined with the Fenton reaction. The PRC-Fenton process can extract electrons from organic wastewater driven by salinity gradient energy for power generation and wastewater remediation in two chambers. The Fenton cathode MOF(2Fe/Co)-GO/GF with good electrocatalytic and photocatalytic activity was developed and optimized in a three-electrode system. GO doping obviously enhanced the catalytic activity and stability of the Fenton cathode. The pollutant (ampicillin, AMP) was simultaneously removed in both anode and cathode chambers of the PRC-Fenton system. AMP removal by the MOF(2Fe/Co)-GO/GF cathode remained above 95% in a wide range of pH values (3.0-7.0). The output current of the PRC-Fenton process was 1.7-2.4 mA. Compared to similar systems, PRC-Fenton is suitable for treating toxic and refractory organic pollutants with green energy in two chambers and generating electricity.
随着人口和经济的快速发展，水和能源危机日益严重。开发高效、低能耗的新型污水处理技术迫在眉睫。在此，我们将光催化燃料电池和反向电渗析集成的太阳能-盐度协同单元（PRC）与芬顿反应相结合。PRC-Fenton 过程可以利用盐度梯度能从有机废水中提取电子，在两个腔室中进行发电和废水修复。在三电极体系中开发和优化了具有良好电催化和光催化活性的 Fenton 阴极 MOF(2Fe/Co)-GO/GF。GO 的掺杂明显提高了 Fenton 阴极的催化活性和稳定性。PRC-Fenton 体系的阳极和阴极室同时去除污染物（氨苄西林，AMP）。MOF(2Fe/Co)-GO/GF 阴极在较宽的 pH 值范围（3.0-7.0）内对 AMP 的去除率均保持在 95%以上。PRC-Fenton 过程的输出电流为 1.7-2.4 mA。与类似系统相比，PRC-Fenton 适用于在两个腔室中用绿色能源处理有毒和难处理的有机污染物并发电。
