Piezocatalytic removal of water bacteria and organic compounds: a review

In the context of climate change, freshwater shrinkage and industrialization, human diseases are increasing due to water pollution by toxic chemicals and pathogenic bacteria, calling for advanced methods to treat contaminated water. Here we review piezocatalysis, an overlooked method to degrade orga...

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Bibliographic Details
Published in:Environmental chemistry letters 2023-04, Vol.21 (2), p.1075-1092
Main Authors: Ali, Ahsan, Chen, Longbin, Nasir, Muhammad Salman, Wu, Chao, Guo, Baolin, Yang, Yaodong
Format: Article
Language:English
Subjects:
Analytical Chemistry
Bacteria
Bacterial infections
Carbon
Cavitation
Climate change
Color removal
Current carriers
Drug resistance
Dyes
E coli
Earth and Environmental Science
Ecotoxicology
Electric fields
Environment
Environmental Chemistry
Freshwater
Geochemistry
Human diseases
Inactivation
Industrialization
Inland water environment
Metabolism
Methods
Nanomaterials
Natural resources
Organic compounds
Oxidation
Oxygen
Pathogenic bacteria
Photocatalysis
Piezoelectricity
Pollutants
Pollution
Reactive oxygen species
Removal
ReviewPaper
Staphylococcus infections
Surface water
Water pollution
Water treatment
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Summary:In the context of climate change, freshwater shrinkage and industrialization, human diseases are increasing due to water pollution by toxic chemicals and pathogenic bacteria, calling for advanced methods to treat contaminated water. Here we review piezocatalysis, an overlooked method to degrade organic pollutants and inhibit bacteria. Recent research shows that the properties of piezoelectric materials have remarkably progressed due to a high surface area and a built-in electric field at the nanolevel. This induces an efficient charge carrier generation, which allows fast reaction mediated by reactive oxygen species. We discuss bacterial growth, methods for water treatment and the piezocatalytic mechanism with focus on charge generation, cavitation and bacterial inactivation by reactive oxygen species. We present applications to the removal of dyes and pathogenic bacteria.
ISSN:1610-3653
1610-3661
DOI:10.1007/s10311-022-01537-3