The photo-catalytic degradation of an azo dye - Amaranth (AM) - has been investigated in TiO(2)/UV aqueous suspensions. The results obtained from the experiments during H(2)O(2)/TiO(2) addition show that the highest decolorization rate is provided by the combination of (UV+TiO(2)+H(2)O(2)). The decolorization efficiencies were 17%, 26%, 38% and 64% in the runs UV, UV+H(2)O(2), UV+TiO(2) and (UV...

The present study, describes the structural, electrical, and the photocatalytic activity of sol-gel synthesized TiO2- ZnO nanostructure. The synthesized mixed oxide nanostructure is characterized by XRD, FTIR, Raman, UV-Vis, FESEM, DLS and Impedance Spectroscopy analyses. In addition, photocatalytic activity of multiphase TiO2 (TAB)-ZnO (ZW) nanostructure is analysed using...

1. The effect of the nutritional state of Didinium nasutum on its resistance to short ultraviolet (UV) radiation (2654 A) and its recovery from the injury following illumination with visible light (4350 A, blue) was studied. 2. The resistance of a didinium to UV is considerably increased by feeding it a paramecium 15 to 60 minutes before exposure to UV. If fed just before exposure to UV, the re...

This article reports on photodielectric properties of hydrocolloids TiO2 particles and Au/TiO2 hybrid lateral dimension ∼200 nm. Illumination the colloids with visible light did not cause measurable changes in their electrical conductivity, while application UV (365 nm) led to photoinduced increase conductivity up 2%. The photogeneration ions water, regardless presence particles, makes a domina...

Type 304L stainless steel (304LSS) is one of the candidate canister materials for storing radioactive spent fuels, usually near seashore environments along with nuclear power plants. During prolonged exposure dry storage canisters to saline environments, they are highly susceptible chloride induced stress corrosion cracking. Failure a not only would release isotopes into environment, but also l...

Abstract The UV/optical and X-ray variability of active galactic nuclei (AGN) have long been expected to be well correlated as a result the illumination accretion disk. Recent monitoring campaigns nearby AGN, however, found that their emission are only moderately correlated, challenging aforementioned paradigm. In this work, we aim demonstrate due definition cross-correlation function, low UV/X...

background: the aims of this study were to evaluate the employees' subjective assessments of different aspects of lighting condition as well as task area illuminance in manufacturing plants. methods: this field study was conducted between march and may 2013 , in three packing plants (saveh, central iran). data were collected by questionnaire and measurement of the task area illuminance levels. ...