In this work, a green, simple, low-cost, and highly effective sol–gel method was used to successfully fabricate water-based SiO₂–TiO₂ aerogels with the help of surfactant by the incorporation of TiO₂ into methyltrimethoxysilane-based SiO₂ sol. The surface morphologies, chemical composition, physical properties, wettability and photocatalytic activity of SiO₂–TiO₂ aerogels were characterized by Fourier transformed infrared (FT-IR), X-ray diffraction (XRD), scanning electron microscopy (SEM), water contact angle and ultraviolet–visible absorption spectrum measurements. When the molar ratio of Si to Ti was 10:1, the SiO₂–TiO₂ aerogel samples showed not only low bulk density (0.122 g cm⁻³) and high porosity (96.11%), but also the high-efficient photodegradation ratio of 98.30% under UV light for 150 min. The obtained SiO₂–TiO₂ aerogels were photocatalytically active and superhydrophobic with the water contact angle (WCA) of 152°, showing the promising potential wide application. Moreover, the superhydrophobic and photocatalytic properties of the SiO₂–TiO₂ aerogels coated cotton fabric were also investigated. The coated cotton fabric not merely possessed antifouling, liquid-repellent and self-cleaning capabilities due to its superhydrophobic property, but also performed the considerable photocatalytic activity by the decomposition of methylene blue (MB) and Rhodamine B (RhB) under ultraviolet (UV) exposure.

在这项工作中，通过将 TiO ₂掺入到甲基三甲氧基硅烷基 SiO 中，采用绿色、简单、低成本、高效的溶胶-凝胶法，在表面活性剂的帮助下成功制备了水性 SiO ₂ -TiO ₂气凝胶。₂溶胶。通过傅里叶变换红外（FT-IR）、X射线衍射（XRD）、扫描电子显微镜（SEM）、水接触等表征SiO ₂ -TiO ₂气凝胶的表面形貌、化学成分、物理性质、润湿性和光催化活性。角和紫外-可见吸收光谱测量。当 Si 与 Ti 的摩尔比为 10:1 时，SiO ₂ –TiO ₂气凝胶样品不仅表现出低堆积密度 (0.122 g cm ^-3 ) 和高孔隙率 (96.11%)，而且在紫外光下 150 分钟具有 98.30% 的高效光降解率。获得的SiO ₂ -TiO ₂气凝胶具有光催化活性和超疏水性，水接触角（WCA）为152°，显示出广阔的应用前景。此外，SiO ₂ –TiO ₂的超疏水性和光催化性能还研究了气凝胶涂层棉织物。涂层棉织物不仅由于其超疏水性而具有防污、拒液和自洁能力，而且通过在紫外线（UV）下分解亚甲蓝（MB）和罗丹明B（RhB）而表现出相当大的光催化活性。接触。