Recent advances in waste-derived functional materials for wastewater remediation

BY ZJ Chen, W Wei, H Chen, BJ Ni|
2022-11-04
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Highlights

Efficient strategies for converting wastes into functional materials are summarized;

Waste-derived materials for water remediation are systematically reviewed;

The materials property-performance correlation is emphasized;

Perspectives in waste-derived materials-driven water remediation are highlighted.

Abstract:Water pollution is a major concern for public health and a sustainable future. To ensure a clean water supply, it is urgent to purify wastewater with effective methods. Most wastewater remediation techniques rely heavily on functional materials, and cost-effective materials are thus highly favorable. Of great environmental and economic significance, developing waste-derived materials for wastewater remediation has undergone explosive growth recently. Herein, the applications of waste (e.g., biowastes, electronic wastes, and industrial wastes)-derived materials for wastewater purification are comprehensively reviewed. Sophisticated strategies for turning wastes into functional materials are firstly summarized, including pyrolysis and combustion, hydrothermal synthesis, sol-gel method, co-precipitation, and ball milling. Moreover, critical experimental parameters within different design strategies are discussed. Afterward, recent applications of waste-derived functional materials in adsorption, photocatalytic degradation, electrochemical treatment, and advanced oxidation processes (AOPs) are analyzed. We mainly focus on the development of efficient functional materials via regulating the internal and external characteristics of waste-derived materials, and the materials property-performance correlation is also emphasized. Finally, the key future perspectives in the field of waste-derived materials-driven water remediation are highlighted.

Keywords: Wastewater remediation; Solid wastes; Waste-derived materials; Adsorption; Advanced oxidation processes; Catalytic degradation

Doi: 10.1016/j.eehl.2022.05.001