The self-cleaning textiles coated with reduced graphene oxide-titanium dioxide (TiO₂) nanocomposites have enhanced photocatalytic activities and could have great potential in practical applications. However, it is still problematic regarding how to avoid aggregation of reduced graphene oxide nanosheets in producing reduced graphene oxide-TiO₂ nanocomposites. In this research article, we propose a new method to reduce the aggregation of reduced graphene oxide nanosheets in producing cotton fabrics coated with reduced graphene oxide-TiO₂ nanocomposites by combining vibration-assisted ball milling and hydrothermal synthesis process. The microstructure and photocatalytic-related properties of the resultant reduced graphene oxide-TiO₂ nanocomposites and their coating cotton fabrics were characterized by using a series of techniques including field emission scanning electron microscope (FESEM), atomic force microscope (AFM), X-ray diffraction spectroscopy (XRD), Raman, particle size distribution, Brunauer-Emmett-Teller,(BET), transmission electron microscope (TEM), X-ray photoelectron spectrometer (XPS), diffuse reflectance spectra (DRS), ultraviolet photoelectron spectroscope (UPS), and photoluminescence (PL). It was indicated that the aggregation of reduced graphene oxide nanosheets in reduced graphene oxide-TiO₂ nanocomposites was successfully avoided via ball milling in the presence of tetrabutyl titanate. After hydrothermal treatment, the resulting reduced graphene oxide-TiO₂ nanocomposites were firmly immobilized on cotton fabric. It was demonstrated in the self-cleaning experiments that the resultant self-cleaning cotton fabrics are hydrophilic and could directly decompose color contaminants such as methylene blue, Congo red, and coffee stains under simulated sunlight irradiation due to the photo-degradation reactions of the reduced graphene oxide-TiO₂ nanocomposite coating. The reduced graphene oxide-TiO₂ nanocomposite-modified cotton fabric also exhibited excellent performance in both robust abrasion resistance and soap-washing resistance. The fabric photocatalytic self-cleaning capability was not found to decrease significantly after being repeatedly used for five times.

涂覆有还原氧化石墨烯-二氧化钛（TiO ₂）纳米复合材料的自清洁纺织品具有增强的光催化活性，在实际应用中具有巨大的潜力。然而，在制备还原氧化石墨烯-TiO ₂纳米复合材料时，如何避免还原氧化石墨烯纳米片的聚集仍然存在问题。在这篇研究文章中，我们提出了一种新方法，通过结合振动辅助球磨和水热合成工艺，在生产涂有还原氧化石墨烯-TiO ₂纳米复合材料的棉织物时减少还原氧化石墨烯纳米片的聚集。所得还原氧化石墨烯-TiO ₂的微观结构和光催化相关性能采用场发射扫描电子显微镜（FESEM）、原子力显微镜（AFM）、X射线衍射（XRD）、拉曼、粒度分布、Brunauer-Emmett- Teller, (BET)、透射电子显微镜 (TEM)、X 射线光电子能谱仪 (XPS)、漫反射光谱 (DRS)、紫外光电子能谱仪 (UPS) 和光致发光 (PL)。结果表明，在钛酸四丁酯存在下，通过球磨成功地避免了还原氧化石墨烯-TiO ₂纳米复合材料中还原氧化石墨烯纳米片的聚集。水热处理后，得到的还原氧化石墨烯-TiO ₂纳米复合材料牢固地固定在棉织物上。自洁实验表明，所得自洁棉织物具有亲水性，在模拟阳光照射下，由于还原剂的光降解反应，可以直接分解有色污染物，如亚甲蓝、刚果红和咖啡渍。氧化石墨烯-TiO ₂纳米复合涂层。还原氧化石墨烯-TiO ₂纳米复合改性棉织物在强大的耐磨性和耐皂洗性方面也表现出优异的性能。织物光催化自洁能力在重复使用五次后未见明显下降。