The Role of Zeolite FeZSM-5 Porous Structure for Heterogeneous Fenton Catalyst Activity and Stability Full article
| Conference |
17th International Zeolite Conference 07-12 Jul 2013 , Москва |
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| Journal |
Microporous and Mesoporous Materials
ISSN: 1387-1811 , E-ISSN: 1873-3093 |
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| Output data | Year: 2014, Volume: 189, Pages: 181-188 Pages count : 8 DOI: 10.1016/j.micromeso.2013.11.033 | ||||
| Tags | Catalyst stability, Fe-ZSM-5, Heterogeneous Fenton catalyst, Hierarchical zeolite, Nanozeolite | ||||
| Authors |
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| Affiliations |
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Funding (5)
| 1 | Siberian Branch of the Russian Academy of Sciences | 24 |
| 2 | Siberian Branch of the Russian Academy of Sciences | 35 |
| 3 | The Ministry of Education and Science of the Russian Federation | 8440 |
| 4 | The Ministry of Education and Science of the Russian Federation | 14.512.12.0005 |
| 5 | Council for Grants of the President of the Russian Federation | НШ-524.2012.3 |
Abstract:
Four types of iron containing materials have been synthesized: conventional zeolite Fe ZSM 5 (conv), hierarchical zeolite Fe-ZSM-5 (hier), small crystals (d = 330 nm) of zeolite Fe-ZSM-5 (nano) and ferric oxide species supported on the amorphous silica Fe/SiO2. Samples were prepared by hydrothermal treatment, polystyrene spheres were used as a template for Fe-ZSM-5 (hier) and Fe/SiO2. The materials were characterized by different techniques. Nature of iron-containing particles in the samples and stability of iron species in the reaction media were suggested by using thermodynamic considerations. All solid-phase Fe-containing samples as well as dissolved Fe(NO3)3 were tested in H2O2 decomposition reactions in absence or presence of iron-complexing agent Na2EDTA, which has been used to test the catalyst stability. Catalytic activity of ferric species in hydrogen peroxide decomposition for small 330-nm crystals of Fe-ZSM-5 was 1.4 times higher than for large zeolite crystals, and significant decrease of the activity was observed for samples containing amorphous silica phase. Experimental results showed that ferric sites in zeolite were stable due to the limited diffusion of Na2EDTA in zeolite phase. Wet hydrogen peroxide oxidation of organic complexing agents by H2O2 using Fe-containing zeolites has a good potential for purification of nuclear waste water.
Cite:
Sashkina K.A.
, Parkhomchuk E.V.
, Rudina N.A.
, Parmon V.N.
The Role of Zeolite FeZSM-5 Porous Structure for Heterogeneous Fenton Catalyst Activity and Stability
Microporous and Mesoporous Materials. 2014. V.189. P.181-188. DOI: 10.1016/j.micromeso.2013.11.033 WOS Scopus РИНЦ ANCAN OpenAlex
The Role of Zeolite FeZSM-5 Porous Structure for Heterogeneous Fenton Catalyst Activity and Stability
Microporous and Mesoporous Materials. 2014. V.189. P.181-188. DOI: 10.1016/j.micromeso.2013.11.033 WOS Scopus РИНЦ ANCAN OpenAlex
Dates:
| Published online: | Nov 27, 2013 |
| Published print: | May 1, 2014 |
Identifiers:
| Web of science: | WOS:000333853200021 |
| Scopus: | 2-s2.0-84900648722 |
| Elibrary: | 21877822 |
| Chemical Abstracts: | 2013:1976038 |
| Chemical Abstracts (print): | 160:492109 |
| OpenAlex: | W2155398242 |