China 
Africa 
Explore chapters and articles related to this topic
Textile Wastewater Treatment by Advanced Oxidation Processes
Published in Mu Naushad, Life Cycle Assessment of Wastewater Treatment, 2018
Gamallo Maria, Moldes-Diz Yolanda, Taboada-Puig Roberto, Lema Juan Manuel, Feijoo Gumersindo, Moreira Maria Teresa
Two families of structurally related dyes containing one or more methine groups (-CH=) belong to this group. Polyene dyes consist of a series of conjugated double bonds, usually terminating in aliphatic or alicyclic groups, which provides its color. The best-known group of polyene dyes is formed by carotenoids. Polymethine dyes are capable of providing a broad range of bright and intense colors but in general, tend to show relatively low strength properties. This feature has limited their use in fabrics, where they are mainly restricted to some dispersed dyes for polyesters, cationic dyes for acrylic fibers, and basic dyes (Langhals, 2004).
Synthesis and DFT calculations of linear and nonlinear optical responses of novel 2-thioxo-3-N,(4-methylphenyl) thiazolidine-4 one
Published in Journal of Sulfur Chemistry, 2020
B. Baroudi, K. Argoub, D. Hadji, A.M. Benkouider, K. Toubal, A. Yahiaoui, A. Djafri
In other hand, rhodanine derivatives have several physical applications. Heterocyclic compounds containing five membered rings with nitrogen, sulfur, and oxygen atoms have been investigated since a long time for their important properties. Among these heterocycles, there are the thiazoles, which are an important class. Recently, the push–pull effects of thiazolidinone compounds have been receiving big attention of chemists and physicists for their linear and nonlinear optical (NLO) properties [9–14]. Similar compounds attract attention such as chalcone and derivative for optoelectronic applications studied using combined experimental and theoretical studies [15–17]. These studies explore the potential of these compounds and its derivatives as efficient NLO-phores. A very simple–structured nonfullerene acceptor consisting of a bithiophene core and octyl–substituted rhodanine can be used in the photovoltaic cells [8]. Photovoltaic properties are also investigating with simple–structured non–fullerene acceptor containing alkoxy substituted benzothiadiazole and a rhodanine [18]. Other applications for these kinds of compounds, rhodanine–3–acetic acid can be used in dye–sensitized solar cell as an acceptor group [19]. Supramolecular self–assembly is one of the powerful approaches for the development of dynamic functional soft materials. For optoelectronic properties, supramolecular columnar self–assembly of wedge–shaped rhodanine based dyes is synthesized. This material has a small π–conjugated functional organic molecule capable of forming supramolecular columnar self–assembly [20]. These kinds of molecules can be used as a Red emissive sensor for discriminative detection of Ag+ and Hg2+ ions in buffer–free aqueous solutions. For this application, triarylamine rhodanine derivatives are synthetized and tested [21]. Good thermal like our compound, chemical stability, and the control chromophore−chromophore interactions in the solid state, can increase the HRS and EFISH hyperpolarizability measured for unsymmetrical polymethine dyes [22]. These factors possess the required characteristics for electro-optical applications. In the same state, Kong et al. [23] showed that EFISH measurements reveal unprecedented hyperpolarizabilities of twisted π-electron system. Their studies provide quantitative NLO information on the extent of aggregation. The measurement of HRS hyperpolarizabilities for solid-state materials show that the aggregation in the solid state undoubtedly affects the conformation and hence the hyperpolarizability β of the material [24]. Several experimental studies [25–27] of NLO properties in solid state show that the HRS measurements in solid state facilitate the comprehension of the orientational correlation between NLO chromophores in the film.