Follut F, Vel Leitner N Karpel
Laboratoire Chimie de l'Eau et de l'Environnement, UMR CNRS 6008, Ecole Supérieure d'Ingénieurs de Poitiers, 40 avenue du Recteur Pineau, 86022 Poitiers Cedex, France.
Chemosphere. 2007 Feb;66(11):2114-9. doi: 10.1016/j.chemosphere.2006.09.031. Epub 2006 Nov 17.
Aqueous 4-nitrophenol solutions containing TiO2 or Al2O3 nanoparticles were irradiated with electron beam. 4-Nitrophenol was decomposed by the ionizing radiation process in the absence of the nanoparticles. The addition of TiO2 or Al2O3 (2 g l(-1)) before irradiation improved the removal of 4-nitrophenol, total organic carbon (TOC) but also nitrogen (TN). To identify the origin of the loss (catalysis or simply adsorption), TiO2 or Al2O3 nanoparticles were added after irradiation. Experiments show that the effect of the presence of TiO2 or Al2O3 during irradiation is just due to adsorption.
含有二氧化钛（TiO₂）或氧化铝（Al₂O₃）纳米颗粒的4-硝基苯酚水溶液用电子束辐照。在没有纳米颗粒的情况下，4-硝基苯酚通过电离辐射过程分解。辐照前添加TiO₂或Al₂O₃（2 g l⁻¹）可提高4-硝基苯酚、总有机碳（TOC）以及氮（TN）的去除率。为了确定损失的来源（催化作用还是单纯的吸附作用），在辐照后添加TiO₂或Al₂O₃纳米颗粒。实验表明，辐照期间TiO₂或Al₂O₃存在的影响仅仅是由于吸附作用。
