Advanced Catalysts for Wastewater Remediation Technologies

Dear Colleagues,

The urgent need of innovative solutions to water contamination demands, particularly in the removal of toxic heavy metals and recalcitrant pollutants, should be addressed for the development of a sustainable future. Advanced catalytic and hybrid technologies, such as transition metal catalysis, electrochemical reduction, photocatalysis, and bioelectrochemical systems, are revolutionizing wastewater remediation. These approaches synergize high efficiency, selectivity, and sustainability, enabling the precise targeting of contaminants like heavy metals through adsorption, membrane separation, and capacitive deionization.

Recent advances in electrochemical removal strategies, including redox-active catalysts and engineered nanomaterials, have enhanced degradation kinetics while minimizing energy consumption. Meanwhile, bioelectrochemical technology bridges catalysis and microbial processes, offering eco-friendly pathways for pollutant transformation. Similarly, photocatalytic methods have shown high potential for the efficient inactivation and removal of toxic compounds, leading to their mineralization. Despite progress, challenges persist in scaling these technologies, optimizing long-term stability, and integrating multifunctional systems for complex wastewater matrices.

This Topical Collection highlights breakthroughs in catalyst/photocatalyst design, mechanistic studies, and scalable applications across pollutant removal, electrochemical reduction, and hybrid processes. We welcome research on novel materials (e.g., transition metal-based frameworks), advanced characterization techniques, and techno-economic analyses to bridge laboratory innovation and industrial deployment. Contributions addressing membrane separation selectivity, capacitive deionization efficiency, or interdisciplinary approaches are particularly encouraged.

By fostering dialogue among chemists, engineers, and environmental scientists, this issue aims to accelerate the development of sustainable, next-generation remediation technologies.

Dr. Meng Li
Prof. Dr. Hongguo Zhang
Prof. Dr. Ewa Kowalska
Collection Editors

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