Laboratorio de Fisicoquímica de Superficies, DETEMA, Facultad de Química, Universidad de la República, Gral. Flores 2124, CC 1157, CP 11800, Montevideo, Uruguay,
Environ Sci Pollut Res Int. 2015 Jan;22(2):864-9. doi: 10.1007/s11356-014-2681-6. Epub 2014 Mar 8.
Iron pillared clay (Fe-PILC) was prepared from a montmorillonite and was characterized by scanning electron microscopy and X-ray fluorescence. Fe-PILC catalytic activity was evaluated in photo-Fenton processes applied to the degradation of 2-clorophenol. Different catalyst loads were assayed. The Fe-PILC allowed almost complete degradation of the contaminant. An increase in the contaminant degradation rate was observed, following leaching of iron during catalytic assays, which suggest the existence of a homogeneous photo-Fenton mechanism. The catalytic performance of the Fe-PILC was compared with that for goethite and zero valent iron nanoparticles. Differences were found regarding the achieved degradation levels, the efficiency in oxidant consumption, and the extension of iron leaching.
采用扫描电子显微镜和 X 射线荧光对从蒙脱石制备的铁柱撑粘土（Fe-PILC）进行了表征。在光芬顿工艺中评估了 Fe-PILC 的催化活性，用于降解 2-氯苯酚。测定了不同的催化剂负载量。Fe-PILC 允许污染物几乎完全降解。在催化试验过程中观察到铁浸出后，污染物降解速率增加，这表明存在均相光芬顿机制。将 Fe-PILC 的催化性能与针铁矿和零价铁纳米颗粒进行了比较。在达到的降解水平、氧化剂消耗效率和铁浸出程度方面存在差异。
