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Boron-based materials in advanced oxidation processes: from electron deficiency to catalytic versatility
1College of Architecture and Environment, Sichuan University, Chengdu 610065, China. liuyang_scu@scu.edu.cn.
Abstract:
Being favorable replacements for traditional metal-based catalysts, boron-based materials have gained increasing attention in advanced oxidation processes (AOPs) for water decontamination, benefiting from their unique electron-deficient structure, strong covalent bonding, excellent chemical stability, and minimal metal leaching. This review comprehensively examines four representative categories of boron-based materials (including elemental boron, metal borides, boron-doped diamond (BDD), and boron nitride) from their fundamental physicochemical properties to their specific applications in various AOPs. Furthermore, the intrinsic mechanisms underlying the structure-activity relationships of various boron-based materials, covering electron donation-driven metal redox cycling, dual active site synergistic catalysis, and nanoconfined interfacial reactions, are critically elucidated. Finally, the critical challenges impeding the practical implementation of boron-based materials are identified and future research directions are proposed. It is expected that this review can provide a comprehensive reference framework and new inspiration for the scientific design and engineering application of boron-based materials in water remediation.
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