Speaker
Description
Lanthanum-doped titanium dioxide nanopowder were successfully synthesized via sol-gel technology and deposited onto cotton textile substrates to obtain multifunctional materials. Two La-doped compositions containing 2 and 5 mol% were investigated to evaluate the influence of dopant concentration on the structural, morphological, optical, and functional properties of the coated textiles.
The prepared materials were comprehensively characterized using X-ray diffraction (XRD), Scanning electron microscopy (SEM), Transmission electron microscopy (TEM), Fourier-transform infrared spectroscopy with attenuated total reflectance (FTIR-ATR), and UV-Vis spectroscopy. The analyses confirmed the successful incorporation of La into the TiO₂ structure and the uniform deposition of the photocatalyst onto the cotton fibers while preserving the textile morphology.
The photocatalytic self-cleaning performance of the coated textiles was evaluated through the degradation of Methylene blue and Malachite green dyes. Both La-doped samples demonstrated good discoloration efficiency. Furthermore, the antibacterial properties of the functionalized textiles were assessed against Escherichia coli. A pronounced inhibition of bacterial growth was observed for all modified samples, with the antibacterial effectiveness increasing with the lanthanum content.
The obtained results demonstrate that La-doped TiO2-coated cotton textiles exhibit promising self-cleaning and antibacterial properties, making them attractive candidates for advanced functional textile applications in healthcare, environmental remediation, and protective materials.