Maria Valnice Boldrin Zanoni

TL;DR: In this article, a review focusing on the heterogeneous photocatalytic treatment of organic dyes in air and water is presented, which includes historical aspects, dark adsorption of the dye on the semiconductor surface and its role in the subsequent photoreaction, semiconductor preparation details, photoreactor configurations, photooxidation kinetics/mechanisms and comparison with other Advanced Oxidation Processes (e.g., UV/H 2 O 2, ozonation, UV/O 3, Fenton and photo-Fenton reactions), visible light-

TL;DR: The most common auxochromes are amine, carboxyl, sulfonate and hydroxyl as mentioned in this paper, which are based on diverse functional groups, such as azo, anthraquinone, methine, nitro, aril‐ methane, carbonyl and others.

TL;DR: High performance liquid chromatography coupled to a diode array detector method was developed to detect disperse dyes in water samples over the range 0.50-35 ng, with detection limits of 0.09 ng, 0.84 ng and 0.08 ng, respectively, with good repeatability and accuracy, that are contributing to the mutagenicity found in the Cristais River, São Paulo, Brazil.

TL;DR: A general overview of the three main types of electrochemical sensors, describing fundamental aspects, developments and their contribution to the area of analytical chemistry, relating relevant aspects of the development of Electrochemical sensors in Brazil is presented in this article.

TL;DR: In this paper, the authors present a compiled and critical review of photoelectrocatalysis, trends and future prospects of the technique applied in environmental protection studies, hydrogen generation, and water disinfection, focusing on the applications of TiO2 and the production of nanometric morphologies with a great improvement in the photocatalyst properties useful for the degradation of organic pollutants, the reduction of inorganic contaminants, the conversion of CO2, microorganism inactivation and water splitting for hydrogen generation.