Abstract The present study aimed to evaluate the removal efficiency of two types cationic dyes different classes – methylene blue (MB) and malachite green (MG) from a synthetic effluent using calcium surfactant (CaSF) originated used frying soybean oil. Fourier Transform Infrared Spectroscopy (FTIR) spectra showed that functional groups on surface CaSF can form complexes or bonds with dye molec...

Cotton cationization with low molecular weight or polymeric cationic modifiers allows the effective dyeing of cotton substrates reactive dyes under salt-free and more environmentally friendly conditions. The current work focuses on spectroscopic study intermolecular interactions, which dictate physicochemical process associated fabric dyeing. Water-soluble copolymers vinyl benzyl chloride (VBC)...

Three new thiophenyl bridged triarylamine-donor based dyes with pyridyl anchoring groups and indolium acceptors have been synthesized studied as sensitizers for the p-type dye-sensitized solar cell (p-DSSC). Compared to known dicyano pyridinium same triarylamine cores, these broadened red-shifted UV–vis absorption spectra, high extinction coefficients extending beyond 700 nm. TD-DFT calculation...

Preparation of bright fluorescent materials based on polymers is hampered by a fundamental problem aggregation-caused quenching (ACQ) encapsulated dyes. Here, ultrabright polymeric nanofibers and coatings are prepared concept ionic dye insulation with bulky hydrophobic counterions that overcomes the ACQ problem. It found counterion perfluorinated tetraphenylborate can boost >100-fold fluorescen...