期刊
JOURNAL OF HAZARDOUS MATERIALS
卷 181, 期 1-3, 页码 343-350出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jhazmat.2010.05.016
关键词
CuFeZSM-5 zeolite; FeZSM-5 zeolite; Rhodamine 6G; Heterogeneous Fenton-like degradation
资金
- TUBITAK (The Scientific and Technological Research Council of Turkey)
- NASU (National Academy of Sciences of Ukraine) [107M625]
- Ege University [2009BIL030]
In this study, heterogeneous Fenton-like degradation of reactive azo dye Rhodamine 6G in water was investigated over a CuFeZSM-5 zeolite catalyst prepared by hydrothermal synthesis. At initial pH of 3.4, a color removal of 100% was achieved after a reaction time of 45 min. TOC elimination was measured to be 51.8% after 2h of oxidation. Initial decolorization rate was described by an equation of -r(A0) = 4.56 x 10(2) e(-24.83/RT) CR6G.00CH2O2,00.35 where R is in kJ/mol. The leaching of iron and copper cations from zeolite structure into the solution during oxidation was dependent on pH strongly. The regulation of pH from 6.5 (dye solution pH) to 3.4, increased leaching for iron from 0.7 to 0.8 mg/dm(3) and for copper from 1.4 to 2.1 mg/dm(3). The copper was totally leached from the catalyst during the process at pH 3.4. (C) 2010 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据