Journal
NANOMATERIALS
Volume 12, Issue 16, Pages -Publisher
MDPI
DOI: 10.3390/nano12162831
Keywords
pathogens; photocatalysts; disinfection
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Funding
- MIUR-Fund-PON RI
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This article reviews the synthesis, toxicity, and antimicrobial performance of engineered photocatalysts, as well as their application in water treatment. The photocatalytic process, as a green technology, is becoming increasingly attractive due to its low cost and environmental friendliness. Various engineered photocatalysts have been developed to overcome the limitations of conventional photocatalysts, and their potential environmental risks are discussed.
Waterborne pathogens represent one of the most widespread environmental concerns. Conventional disinfection methods, including chlorination and UV, pose several operational and environmental problems; namely, formation of potentially hazardous disinfection by-products (DBPs) and high energy consumption. Therefore, there is high demand for effective, low-cost disinfection treatments. Among advanced oxidation processes, the photocatalytic process, a form of green technology, is becoming increasingly attractive. A systematic review was carried out on the synthesis, characterization, toxicity, and antimicrobial performance of innovative engineered photocatalysts. In recent decades, various engineered photocatalysts have been developed to overcome the limits of conventional photocatalysts using different synthesis methods, and these are discussed together with the main parameters influencing the process behaviors. The potential environmental risks of engineered photocatalysts are also addressed, considering the toxicity effects presented in the literature.
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