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Redox-reversible crosslinker enhances TiO₂-coated nylon textile performance
A novel redox-reversible crosslinker significantly boosts the photocatalytic efficiency and durability of TiO₂-coated nylon textiles, setting new benchmarks for pollutant degradation technologies.
Recent research highlights the development of a groundbreaking crosslinking agent that enhances the performance of TiO₂-coated nylon textiles for organic pollutant degradation. While TiO₂-based photocatalytic textiles offer promising solutions in environmental remediation, existing crosslinking methods have often been hindered by excessive material usage, compromising photocatalytic efficiency.
To address this issue, a novel crosslinker has been introduced featuring a p-phenylenediamine core and four extended silanol groups. This unique design allows for robust binding of TiO₂ nanoparticles (NPs) to the textile substrate, using minimal crosslinker quantities while simultaneously leveraging its redox-reversible properties to enhance photocatalytic performance. The crosslinker also contributes to improved coating fastness, a critical factor for durability in repeated applications.
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Optimised Ratios Deliver Superior Performance
The study explored various weight ratios of crosslinker to TiO₂, with a ratio of 1:4 exhibiting optimal results. Textiles treated at this ratio maintained over 90 % degradation efficiency for methylene blue after four consecutive cycles, demonstrating exceptional durability and efficacy. Furthermore, the novel crosslinker’s ability to enhance the adhesion strength of TiO₂ NPs without compromising catalytic activity represents a notable advancement compared to conventional crosslinking agents.
This research provides valuable insights into the development of more efficient and sustainable functional coatings for textile applications, with potential implications for broader industrial and environmental uses.
Source: Wang, X., Wang, Y., Cui, J., & Xiong, Y., Redox-reversible crosslinker for the enhancement of photocatalytic performance of TiO₂-coated nylon textile, Journal of Coatings Technology and Research, Volume 22, Seiten 2021–2034, (2025).
