In this paper, we describe the chemical engineering aspects of the preparation of highly active and stable photocatalytic textiles and show several examples of the application of these materials for the efficient degradation of harmful volatile organic compounds (VOCs) and adverse macromolecules, namely, deoxyribonucleic acid (DNA) contaminants. The photoactive textiles were obtained by the impregnation method. Titanium(IV) oxysulfate and titanium(IV) isopropoxide were used as the precursors of TiO₂ and were hydrolyzed under different conditions. The effect of the preparation conditions on the photocatalytic activity of the materials was investigated. The addition of nanocrystalline TiO₂ to the impregnating compound during the synthesis substantially increased the photocatalytic activity of the materials. As a result, we proposed a technique for the modification of cotton fabric using titanium(IV) isopropoxide and nanocrystalline TiO₂, which allowed the production of textiles with high stability toward washing and with photocatalytic activity similar to the activity of powdered TiO₂ photocatalysts. The complete oxidation of VOCs with the formation of carbon oxides and water as the final oxidation products was detected on the surface of synthesized textiles under UV light. In the case of an S-containing pollutant, deactivation of the material was observed during long-term oxidation, but as an advantage over powdered photocatalysts, the textile material could be easily reactivated by simple washing. Additionally, in this paper, we show using the polymerase chain reaction (PCR) technique the ability of photoactive textiles to decompose human genomic DNA contaminants under UV light.

在本文中，我们描述了制备高活性和稳定的光催化纺织品的化学工程方面，并展示了这些材料在有效降解有害挥发性有机化合物（VOC）和有害大分子（即脱氧核糖核酸）方面的几个实例。 （DNA）污染物。通过浸渍法获得光敏纺织品。硫酸氧钛（IV）和异丙氧基钛（IV）被用作TiO ₂的前体，并在不同条件下水解。研究了制备条件对材料光催化活性的影响。纳米TiO _2的添加在合成过程中对浸渍化合物的光催化作用大大提高了材料的光催化活性。因此，我们提出了一种使用异丙醇钛（IV）和纳米晶TiO ₂改性棉织物的技术，该技术可以生产出对洗涤具有高稳定性并具有与粉状TiO ₂相似的光催化活性的纺织品。光催化剂。在紫外线下，在合成纺织品的表面上检测到VOC的完全氧化，形成了碳氧化物和水，成为最终的氧化产物。在含S污染物的情况下，在长期氧化过程中会观察到材料失活，但与粉状光催化剂相比，它具有优势，可通过简单洗涤轻松地使织物材料重新活化。此外，在本文中，我们展示了使用聚合酶链反应（PCR）技术在紫外光下光敏纺织品分解人类基因组DNA污染物的能力。