Molecular Orbital Level Micro-Electric Field in Green Fenton-Like Chemistry for Water Treatment: From Mechanism Understanding to Scale-Up Applications.

Abstract

Fenton-like systems utilizing micro-electric field-engineered catalysts have emerged as a promising technology for water remediation, demonstrating distinctive advantages via their efficient electron transport networks. This innovative approach not only significantly reduces oxidant consumption but also enables thorough mineralization of contaminants. However, current research faces critical challenges in fundamental mechanistic understanding, particularly regarding reactor scale-up strategies and biological synergy mechanisms, where a cohesive theoretical framework remains to be established. This comprehensive review systematically addresses four pivotal aspects: i) Mechanistic elucidation of charge transfer dynamics and pollutant transformation pathways in micro-electric field-enhanced Fenton systems; ii) Development of structure-activity relationship models for system optimization; iii) Implementation of modular scale-up methodologies with pilot-scale validation for engineering feasibility assessment; iv) Quantitative environmental impact evaluation using full lifecycle assessment under carbon neutrality objectives. By methodically analyzing technical bottlenecks and advancement pathways, this work establishes a theoretical foundation for advancing micro-electric field regulation in environmental remediation applications. The insights presented are expected to accelerate the development of sustainable water treatment solutions, offering innovative approaches for pollution control aligned with global carbon emission reduction targets.