@inproceedings{52428c8feeda4b1d939bf938a30b0a8e,
title = "Laser-induced photocatalytic inactivation of coliform bacteria from water using pd-loaded nano-WO3",
abstract = "Nano palladium-loaded on nano tungsten trioxide (n-Pd/n-WO3), with 10% wt Pd loading, was prepared by the impregnation evaporation method. The n-WO3 support was prepared by dehydration of tungstic acid (H 2WO4). The n-Pd/n-WO3 was characterized by Raman spectroscopy, X-ray powder diffraction (XRD) and transmission electron microscopy (TEM). This material was tested as a photocatalyst for inactivation and killing of coliform bacteria, by applying 355-nm pulsed UV laser radiations, generated from the third harmonic of Nd:YAG laser, to a model water sample, prepared using bacteria strains of Escherichia coli. The killing effect of n-Pd/n-WO3 on coliform bacteria was characterized by means of selective culture media. The photocatalysis process did result in a very high irreversible injury (99%) under investigated conditions. This process is cost-effective because no bacteria re-growth was recorded under optimum environment conditions. The disinfection rate of water was estimated by exponential decay. The conventional titania (TiO2) semiconductor and commercially available WO3 display a lower decay rate than that for n-Pd/n-WO3.",
keywords = "E-Coliforms, Heterogeneous photocatalysis, Nano palladium-loaded on nano tungsten trioxide, Water disinfiction",
author = "A. Bagabas and M. Gondal and A. Khalil and A. Dastageer and Z. Yamani and M. Ashameri",
year = "2010",
doi = "10.1016/S0167-2991(10)75042-4",
language = "English",
isbn = "9780444536013",
series = "Studies in Surface Science and Catalysis",
publisher = "Elsevier Inc.",
pages = "279--282",
booktitle = "Scientific Bases for the Preparation of Heterogeneous Catalysts - Proceedings of the 10th International Symposium",
address = "United States",
}