Radiation Chemistry of Aqueous Solutions

Photocatalytic Degradation of an Anionic Surfactant by Tio2 Nanoparticle under UV Radiation in Aqueous Solutions

In this paper the photocatalytic degradation of the anionic surfactant, linear alkylbenzene sulfonicacid (LABSA) was investigated using UV radiation in the presence of TiO2. Our findingsdemonstrate that various parameters exert their individual influence on the photocatalytic degradationof surfactant in wastewaters. The mentioned parameters have been categorized as follow: the initialpH of the ...

Fenton chemistry at aqueous interfaces.

In a fundamental process throughout nature, reduced iron unleashes the oxidative power of hydrogen peroxide into reactive intermediates. However, notwithstanding much work, the mechanism by which Fe(2+) catalyzes H2O2 oxidations and the identity of the participating intermediates remain controversial. Here we report the prompt formation of O=Fe(IV)Cl3(-) and chloride-bridged di-iron O=Fe(IV) · ...

Ultrafast Chemistry of Water Radical Cation, H₂O•+, in Aqueous Solutions.

Oxidation reactions by radicals constitute a very important class of chemical reactions in solution. Radiation Chemistry methods allow producing, in a controlled way, very reactive oxidizing radicals, such as OH•, CO₃•-, NO₃•, SO₄•-, and N₃•. Although the radical cation of water, H₂O•+, with a very short lifetime (shorter than 1 ps) is the precursor of these radicals in aqueous solutions, its c...

Chemistry: Rice and Kra Us Conductance and Viscosity of Concentrated Aqueous Salt Solutions

Solid aqueous solutions

In most treatments of aqueous "solutions" it is taken for granted that water is present in the liquid state and in excess, with the concentrations of solutes limited by their saturation solubilities. Hence, the thermodynamic reference states are defined as the infinitely dilute solution, a solution of unit molality, etc. In recent years supersaturated aqueous solutions have been receiving incre...