Nanotechnology: Environmental Abatement

Authored by: Puangrat Kajitvichyanukul , Jirapat Ananpattarachai

Encyclopedia of Environmental Management

Print publication date:  December  2012
Online publication date:  December  2012

Print ISBN: 9781439829271
eBook ISBN: 9781351235860
Adobe ISBN:

10.1081/E-EEM-120046177

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Abstract

Currently, environmental nanotechnology is an important method for pollutant removal from the environment because of its ability to degrade toxic organic pollutants, dechlorinate chlorinated organic compounds, deactivate bacteria, and transform toxic heavy metals to nontoxic forms. Consequently, many environmental cleanup technologies that utilize several types of nanomaterials in removing several types of toxic chemicals for applications in wastewater treatment, drinking water treatment, and contaminated land and groundwater remediation have been proposed or developed. This entry reviews the significance of nanotechnology in environmental management. In addition, the latest nanomaterials, including nano-semiconductor catalysts (TiO2, ZnO, Fe2O3, CdS, and ZnS), zero-valent iron nanoparticles, and noble nanoparticles, such as silver or gold nanoparticles, are reviewed, and their mechanisms in toxic pollutant removal and their potential applications for environmental abatement are demonstrated.

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