国产一级a毛一级a看免费视频,久久久久久国产一级AV片,免费一级做a爰片久久毛片潮,国产精品女人精品久久久天天,99久久久无码国产精品免费了

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.