国产精品制服丝袜第一页蜜芽_精品少妇一区二区三区水蜜桃_欧美日韩亚洲国产一区_亚洲AV福利天堂导导航_就能找到官方日本少妇喷水高清_日本熟妇的诱惑中文字幕_国产精品美女久久av爽_亚洲全部无码中文字幕_熟女少妇大屁股一区二区_精品国产乱码久久久久久久_七色影视无码激情在线_99r久久这里只有的精品首页 _亚洲狼人国产91av_自拍亚洲欧美日韩另类图区_在线aⅴ亚洲中文字幕

Selective degradation of model pollutants in the presence of core@shell TiO2@SiO2 photocatalyst

作者： Peter Nadrah^a,  Miran Gaberš?ek^b, Andrijana Sever Škapin^a

^a Slovenian National Building and Civil Engineering Institute, Dimi?eva ul. 12, SI-1000 Ljubljana, Slovenia

^b National Institute of Chemistry, Hajdrihova ul. 19, SI-1000 Ljubljana, Slovenia

摘要：Photocatalytic TiO2 degrades organic matter unselectively. However, in certain applications, such as degradation of pollutants, selectivity towards pollutants is beneficial. We synthesized core@shell TiO2@SiO2 nanoparticles with photocatalytic activity featuring a significantly faster preferential degradation of model pollutant (rhodamine B) in presence of abundant concentration of natural organic matter compared to pure TiO2 (P25). The material’s photocatalytic activity was tested in aqueous medium. The selectivity of prepared effect of core@shell materials is explained based on transmission electron microscopy, nitrogen adsorption, X-ray powder diffraction and zeta potential measurements.