Developments and Advances in Electrode Materials for Electrochemical Treatment of Industrial Wastewater

The modern world produces vast amounts of wastewater due to rising human activity, industry, and urbanization. Physicochemical and biological techniques are commonly utilized for the degradation of industrial wastewater and have proven to be highly effective in eliminating contaminants. However, some pollutants in industrial wastewater are very hard to eliminate with conventional physicochemical and biological methods, growing interest in using electrochemical oxidation (EO) for efficiently degrading industrial wastewater recently. This review mainly focuses on the effectiveness of different electrode materials in the EO process for wastewater treatment. The scope of research in this field is broad, and the purpose of this review is to evaluate how much interest there is in each field of industrial wastewater treatment. Since 2011, Science Direct has collected the number of annual articles directly relevant to electrode materials used for EO. A bar graph was used to analyze the evolution of research analyses from 2011 to 2023. According to this study, interest in electrode materials used for EO of wastewater treatment has increased throughout the past 13 years. In this paper, different electrode materials and industrial wastewater are discussed. The constantly growing trends in electrode materials used for EO of wastewater show that this technology is still in demand, and this interest should materialize into new applications for a sustainable and assured future.