Photocatalysis-Fenton Degradation of Phenol over Fe-Ti Pillared Bentonite

被引：8

作者：

Gao Jian ^{[1
]}

Wu Ling ^{[1
]}

Liang Shijing ^{[1
]}

Zhang Shilong ^{[1
]}

Liu Ping ^{[1
]}

Fu Xianzhi ^{[1
]}

机构：

[1] Fuzhou Univ, State Key Lab Breeding Base Photocatalysis, Fuzhou 350002, Fujian, Peoples R China

来源：

CHINESE JOURNAL OF CATALYSIS | 2010年 / 31卷 / 03期

关键词：

iron; titanium; pillared bentonite; photocatalysis; Fenton reaction; phenol; degradation; ORANGE-II; CATALYTIC DEGRADATION; UV-FENTON; MINERALIZATION; DISCOLORATION; OXIDATION; WATER; DYE;

D O I：

10.3724/SP.J.1088.2010.90911

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Fe-Ti pillared bentonite (Fe-Ti-B) was successfully prepared through a simple cation exchange reaction. The obtained sample was characterized by N(2) adsorption-desorption, X-ray powder diffraction, and inductively coupled plasma-atomic emission spectrometry. The effects of initial pH, catalyst amount, and H(2)O(2) concentration on photocatalysis-Fenton degradation of phenol were investigated in detail. The results showed that the conversion and mineralization rates of phenol were over 95% at pH = 6.6 under UV light irradiation. At the same time, the iron leaching rate was kept below 2 mg/L during the degradation process. The performance of the Fe-Ti-B catalyst is superior to Fe-pillared bentonite. Moreover, it still kept a high activity after 5 times run, indicating that Fe-Ti-B is a highly stable catalyst. The degradation rate of phenol could even reach 70.3% after 180 min under alkaline conditions (pH = 9.0). The excellent performance of Fe-Ti-B may be attributed to its large surface area and strong surface acidity.

引用

页码：317 / 321

页数：5

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