Self-cleaning photoactive cotton fabric modified with nanocrystalline TiO2 for efficient degradation of volatile organic compounds and DNA contaminants
作者： Maria Solovyeva , Dmitry Selishchev , Svetlana Cherepanova , Grigory Stepanov , Evgeny Zhuravlev
DOI: 10.1016/J.CEJ.2020.124167
关键词: Titanium 、 Textile 、 Chemical engineering 、 Degradation (geology) 、 Hydrolysis 、 Macromolecule 、 Chemistry 、 Pollutant 、 Nanocrystalline material 、 Photocatalysis
摘要: Abstract In this paper, we describe the chemical engineering aspects of preparation highly active and stable photocatalytic textiles show several examples application these materials for efficient degradation harmful volatile organic compounds (VOCs) adverse macromolecules, namely, deoxyribonucleic acid (DNA) contaminants. The photoactive were obtained by impregnation method. Titanium(IV) oxysulfate titanium(IV) isopropoxide used as precursors TiO2 hydrolyzed under different conditions. effect conditions on activity was investigated. addition nanocrystalline to impregnating compound during synthesis substantially increased materials. As a result, proposed technique modification cotton fabric using TiO2, which allowed production with high stability toward washing similar powdered photocatalysts. complete oxidation VOCs formation carbon oxides water final products detected surface synthesized UV light. case an S-containing pollutant, deactivation material observed long-term oxidation, but advantage over photocatalysts, textile could be easily reactivated simple washing. Additionally, in polymerase chain reaction (PCR) ability decompose human genomic DNA contaminants
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