棉纺织技术2025，Vol.53Issue(9)：57-65,9.
TiO2/活性染料复合棉纤维的制备及自清洁性能
Preparation and self-cleaning performance of TiO2/reactive dye composite cotton fiber
摘要
Abstract
To address the susceptibility of cotton fibres to soiling,their poor ultraviolet resistance and the complexity of conventional modification-dyeing process,a one-step hydrothermal method was developed,tetrabutyl titanate and reactive turquoise KN-G dye were acted synergistically,enabling simultaneous TiO2 loading and dye fixation on the fibre surface.The characterization results showed that anatase-phase TiO2 nanoparticles were uniformly anchored to the fibres,far superior to conventional multistep routes.After hydrothermal treatment,the cotton crystalline and molecular structure were not destroyed.TiO2 was combined with cellulose through C—Ti,N—Ti and O—Ti bonds,dye was successfully grafted.TiO2 loading enhanced UV absorption in 290 nm～400 nm range with minimal impact on thermal stability.Photocatalytic self-cleaning tests showed that,after 300 min of UV irradiation,the modified fibres could degrade strawberry juice stains efficiently,which demonstrating robust self-cleaning capability.Owing to high-temperature hydrolysis and acidic intermediates,the breaking strength and breaking elongation rate were decreased 32.4%and 26.4%,respectively,while dye uptake and K/S value were dropped 50%and 79%.Despite the mechanical and dyeing property reductions,the one-step hydrothermal process was simple,energy-efficient and environmentally benign,providing a viable route for the green,high-throughput production of multifunctional cotton fibers.关键词
棉纤维/一步法/TiO2/活性染料/协同修饰/自清洁性能Key words
cotton fiber/one-step method/TiO2/reactive dye/synergistic modification/self-cleaning performance分类
轻工纺织引用本文复制引用
李梦婷,张辉,车秋凌,赵培灼,夏泓蕙,张劲峰..TiO2/活性染料复合棉纤维的制备及自清洁性能[J].棉纺织技术,2025,53(9):57-65,9.基金项目
国家自然科学基金项目(51873169) （51873169）
2025年泉州市级科技攻关计划项目(2025QZG01) （2025QZG01）
