Review on application of perylene diimide (PDI)-based materials in environment: Pollutant detection and degradation

Environment pollution is getting serious and various poisonous contaminants with chemical durability, biotoxicity and bioaccumulation have been widespreadly discovered in municipal wastewaters and surface water. The detection and removal of pollutants show great significance for the protection of human health and other organisms. Due to its distinctive physical and chemical properties, perylene diimide (PDI) has received widespread attention from different research fields, especially in the area of environment. In this review, a com-prehensive summary of the development of PDI-based materials in fluorescence detection and advanced oxida-tion technology for environment was introduced. Firstly, we chiefly presented the recent progress about the synthesis of PDI and PDI-based nanomaterials. Then, their application in fluorescence detection for environment was presented and categorized, principally including the detection of heavy metal ions, harmful anions and or-ganic contaminants in the environment. In addition, the application of PDI and PDI-based materials in different advanced oxidation technologies for environment, such as photocatalysis, photoelectrocatalysis, Fenton and Fenton-like reaction and persulfate activation, was also summarized. At last, the challenges and future prospects of PDI-based materials in environmental applications were discussed. This review focuses on presenting the prac-tical applications of PDI and PDI-based materials as fluorescent probes or catalysts (especially photocatalysts) in the detection of hazardous substances or catalytic elimination of organic contaminants. The contents are aimed at supplying the researchers with a deeper understanding of PDI and PDI-based materials and encouraging their further development in environmental applications. (c) 2021 Elsevier B.V. All rights reserved.

Automated summary

Environmental pollution is a severe issue, with various toxic contaminants found in wastewaters and surface water. Perylene diimide (PDI) and its materials play a significant role in detection and removal of pollutants, with applications in fluorescence detection and advanced oxidation technologies. The review focuses on the practical applications of PDI-based materials as fluorescent probes and catalysts in environmental protection, highlighting their synthesis, detection capabilities, and use in advanced oxidation processes.