Journal of Environmental Engineering Technology•2026•DOI: 10.13205/j.hjgc.202606012
River and lake sediments, as both sources and sinks of water pollutants, significantly impact overlying water quality and aquatic ecosystems. In pollution treatment and ecological restoration, managing contaminated sediments is critical. Remediation technologies are categorized into ex-situ and in-situ methods; in-situ techniques have gained prominence due to lower costs and minimal environmental disturbance. This review summarizes sediment pollution status, comprehensively examines physical, chemical, biological, and combined in-situ remediation technologies, and discusses their mechanisms, applications, and future research needs. It proposes optimization strategies for emerging technologies, material improvements, and pathways for sustainable development, emphasizing interdisciplinary integration to enhance remediation efficacy. Key pollutants include heavy metals (e.g., Cd, Hg), persistent organic pollutants (POPs), and emerging contaminants like antibiotics and microplastics. In-situ methods such as capping, chemical oxidation, and bioremediation show promise but face challenges in long-term stability and scalability. The paper underscores the need for sustainable, cost-effective solutions and highlights recent advances in combined technologies, offering a reference for future research and engineering applications.
SCIENCE CHINA Materials•2026•DOI: 10.1007/s40843-025-3994-9
Electrokinetics, the study of charge transfer and mass transport under electric fields, is fundamental to advancing energy storage and electrocatalysis. Organic-inorganic composite materials synergistically combine the structural stability and conductivity of inorganic phases with the functional diversity of organic components, optimizing electrokinetic properties such as charge transfer, ionic mobility, and catalytic activity. This review systematically examines the intersection of electrokinetic phenomena and organic-inorganic composites, focusing on fundamental principles, design strategies, and performance optimization. Advanced materials including metal-organic frameworks (MOFs), organic-carbon hybrids, and single-atom catalysts are highlighted, with applications spanning batteries, fuel cells, wearable devices, and electrocatalytic systems. Emphasis is placed on advanced in situ and operando characterization techniques that probe electrokinetic processes, revealing the interplay between structure, interface, and transport dynamics. By bridging electrokinetic theory and material design, this work provides a roadmap for developing next-generation materials for sustainable energy technologies. The review consolidates recent progress, identifies remaining challenges, and proposes future directions for leveraging electrokinetic principles to achieve high-efficiency, durable energy systems.