IFISUR, Universidad Nacional del Sur, Av. Alem 1253, Bahía Blanca, Argentina.
J Environ Manage. 2012 Jun 30;101:1-6. doi: 10.1016/j.jenvman.2012.02.014. Epub 2012 Mar 2.
The adsorption and photodegradation of acridine orange (AO) and acriflavine (AF) dyes on two mesoporous titania crystalline phases, anatase and rutile, were experimentally studied. Anatase and rutile were characterized by nitrogen adsorption, electron scanning and transmission microscopy, and X-ray diffraction. The adsorption capacity of rutile was higher than that of anatase, while the reverse is observed for photodegradation of both dyes. The adsorption of AF on both adsorbents was higher than that of AO, which was related with the smaller size of AF molecules compared with those of AO, therefore the access of AF to the adsorption sites is favored.
实验研究了吖啶橙（AO）和吖啶黄素（AF）两种染料在两种介孔二氧化钛晶相锐钛矿和金红石上的吸附和光降解。通过氮气吸附、电子扫描和透射显微镜以及 X 射线衍射对锐钛矿和金红石进行了表征。金红石的吸附容量高于锐钛矿，而两种染料的光降解情况则相反。两种吸附剂对 AF 的吸附均高于 AO，这与 AF 分子的尺寸小于 AO 分子有关，因此 AF 更易于进入吸附位点。
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