Journal
APPLIED WATER SCIENCE
Volume 10, Issue 6, Pages -Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s13201-020-01228-w
Keywords
Volatile organic compound; Chlorobenzene; Nanoparticles; Photocatalysis; modified ZnO
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Funding
- JSS Academy of Higher Education and Research (JSS AHER), Mysuru, India
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Volatile organic compounds (VOCs) are one of the major pollutants present in the petrochemical industrial effluents. These VOCs have high vapor pressure, which makes it to be dispersed into the atmosphere easily. Chlorobenzene is one such VOC, which has an ability to cause adverse impacts on human health by damaging the central nervous systems. The available treatment methods are unable to effectively treat such VOCs in environment. Photocatalytic degradation is the effective and economical methods, which are being used for the treatment of such pollutants. ZnO is one of the widely accepted photocatalyst, but it has a limitation of wide band-gap energy utilization. This paper mainly investigates the preparation of metal-doped ZnO nanoparticles using solgel technique and its application for the degradation of chlorobenzene in an aqueous media under different light sources. Among the modified ZnO nanoparticles prepared (Ag/ZnO, Cd/ZnO and Pb/ZnO), Pb/ZnO was found to be very effective in the degradation of chlorobenzene and achieved up to 100% within a short duration (< 120 min). The Pb/ZnO was also used as a photocatalyst in a vertical continuous photoreactor for the photodegradation of chlorobenzene using LED light.
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