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A new colorimetric sensor based-azo dye for Cu2+ detection was synthesized and characterized by FTIR and NMR spectroscopies. The results showed that the azo dye had a high selective and sensitive recognition toward Cu2+. The solution containing the sensor changed color from pink to pale yellow with a hypsochromic shift in the presence of Cu2+. The sensor selectivity and sensitivity toward Cu2+ ions...
An ionic liquid (IL)-assisted cotton fabric treatment was developed that uses the sol–gel method, methylimidazolium and pyridinium cations combined with Cl−, PF6−, (CF3SO2)2N−, BF4− and CH3CO2− anions. Scanning electron microscopy, elemental analysis and Fourier transform infrared spectroscopy were first performed to characterize the morphology and the chemical composition of the treated and untreated...
In the present study, we report a new process for modifying cellulosic fabrics by using ionic liquids. To this aim, 1-methylimidazolium chloride propyltriethoxysilane and 1-pyridinium chloride propyltriethoxysilane salts were synthesised. Then, the cotton fabrics were treated with sols containing these salts by the pad-dry-cure process. Finally, the treated fabrics were impregnated in a diluted solution...
Surfaces of cotton, polyester (PES) and polyamide (PA) fabrics have been modified by the sol–gel process in order to achieve silica based hybrid coatings onto the fibers for enhancing their water repellency, thermal stability and mechanical properties. The effects of synthesis parameters such as the concentration of the alkoxysilane used as main precursor, the chloropropyltriethoxysilane (CPTS), and...
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