Application of a montmorillonite clay modified with iron in photo-Fenton process. Comparison with goethite and nZVI

被引：16
|
作者：
De Leon, Maria A. [1 ]
Sergio, Marta [1 ]
Bussi, Juan [1 ]
Ortiz de la Plata, Guadalupe B. [2 ]
Cassano, Alberto E. [2 ]
Alfano, Orlando M. [2 ]
机构：
[1] Univ Republica, Fac Quim, DETEMA, Lab Fisicoquim Superficies, Montevideo 11800, Uruguay
[2] Univ Nacl Litoral, CONICET, INTEC, RA-3000 Santa Fe, Santa Fe, Argentina
来源：
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH | 2015年 / 22卷 / 02期
关键词：
Photo-Fenton; Fenton; Fe-PILC; Goethite; Zero valent iron; 2-chlorophenol; 2-CHLOROPHENOL EMPLOYING GOETHITE; HETEROGENEOUS FENTON; PEROXIDE OXIDATION; ORANGE II; DEGRADATION; CATALYST; FE; PHENOL; WATER; DECOMPOSITION;
D O I：
10.1007/s11356-014-2681-6
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
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.
引用
收藏
页码：864 / 869
页数：6
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