FeMo modified Ru@TiO2 with ultralow Ru loading towards efficient degradation of methylene blue
Source abstract
Abstract
Dimensionally stable RuO 2-based anodes have achieved excellent performance in the field of electrochemical treatment of wastewater, however, the high price of Ru hinders its industrial application. Herein, TiO 2 nanotubes-supported RuO 2 with ultralow Ru loading (0.34 wt%) and trace Fe and Mo doping (RuFeMo@TiO 2) was prepared as anode for efficient degradation of methylene blue. It shows that Fe and Mo doping reduce the oxidation state of Ru (Ru n+, n < 4). In addition, the potential electroactive sites of the electrodes are effectively enhanced by Mo doping. While the Fe doping is found to improve the generation of hydroxyl radicals (·OH) and superoxide anion ( O 2 − ), which are the dominant oxidants for the degradation of methylene blue. In result, the RuFeMo@TiO 2 catalyst exhibits high performance towards methylene blue degradation of 97.5 % within 2 hours. It shows that the cooperation of trace transition metals enables efficient degradation of organic dye with ultralow-loaded Ru electrocatalyst, implying a promising application in wastewater treatment.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Nanomaterials for catalytic reactions · Catalytic Processes in Materials Science · Electrocatalysts for Energy Conversion
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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