Related Experiment Video
Updated: Jan 17, 2026

Synthesis and Performance Evaluations of ZnCoS/ZnCdS with Twin Crystal Structure for Multifunctional Redox Photocatalysis in Energy Applications
Published on: July 25, 2025
Harnessing Spatiotemporal Interaction of Redox Reactions Boosts Singlet Oxygen Generation in Electrocatalytic
Mengyao Gu1,2, Yifan Gao3,4, Haojie Ding3
1Beijing Key Lab for Source Control Technology of Water Pollution, College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China.
Abstract:
Electrocatalytic membrane filtration (EMF) technology presents a transformative approach to efficient emerging contaminant removal by synergistically integrating electrochemical reactions with membrane separation. However, current EMF systems exhibit inadequate control and poor understanding of selective reactive oxygen species (ROS) generation, particularly singlet oxygen (1O2), which constrains target-specific degradation capability. Here, we engineered a graphite-felt-based electrocatalytic dual-membrane system to systematically reveal how anode-cathode reactions under spatiotemporal coupling regulate 1O2 generation by modulating pH and anode potential. In the optimal configuration (A-C_1), H+ and O2 were produced via oxygen evolution reaction at the upstream anode transport to the downstream cathode interface, creating an acidic environment and continuous oxygen supply conducive to 1O2 formation. Compared to the reverse configuration (C-A_1), the A-C_1 configuration enhances the generation of key intermediates (O2·- and H2O2), significantly boosting the 1O2 generation rate (371.9 μmol L-1min-1) and achieving improved energy efficiency (17.88 m3 order kWh-1). This study establishes spatiotemporal-interfacial regulation principles, providing a theoretical foundation for developing highly selective EMF systems.
More Related Videos
Related Concept Videos
Redox Reactions
Redox Reactions
Redox Equilibria: Overview
The Z-Scheme of Electron Transport in Photosynthesis
Thermal and Photochemical Electrocyclic Reactions: Overview
Voltaic/Galvanic Cells
Spontaneous redox reactions occur abundantly in nature. The chemical reaction occurring in a disposable AA battery powering our remote controls is one such example of a spontaneous redox reaction. Another example is the immersion of coiled copper wire into an aqueous silver nitrate solution. The reaction shows a gradual, visually impressive color change from colorless to bright blue and the formation of a grey precipitate on the copper wire. In this experiment,...

