NDLI: Catalytic properties of Fe-Cu-Al-montmorillonites in the oxidation of acid chrome dark blue azo dye

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Catalytic properties of Fe-Cu-Al-montmorillonites in the oxidation of acid chrome dark blue azo dye

Content Provider	Springer Nature Link
Author	Khankhasaeva, S. Ts. Dashinamzhilova, E. Ts. Dambueva, D. V. Timofeeva, M. N.
Copyright Year	2013
Abstract	Interlayer cations in the sodium form of the aluminosilicate montmorillonite (Mt) have been exchanged by mixed, bulky, polynuclear hydroxo cations (Al: (Fe + Cu) = 10, Cu: Fe = 0–1, OH: (Fe + Cu + Al) = 2), and the product has been heat-treated to obtain Fe-, Fe-Al-, and Fe-Cu-Al-containing materials (Fe-Cu-Al-Mt). The chemical composition and textural characteristics of the materials depend on the Cu: Fe molar ratio. The catalytic properties of the materials in the oxidation of acid chrome dark blue (ACDB) azo dye with hydrogen peroxide have been investigated. The activity and stability of the Fe-Cu-Al-Mt systems are determined by the quantity of copper and iron atoms introduced into the structure of the material. As the iron ion content is increased, the specific catalytic activity of the system increases and the system becomes less resistant to the leaching of iron ions into the solution. Raising the copper content of the system above 0.07 wt % reduces its activity and stability. The effects of the catalyst content, pH of the solution being oxidized, and reactant ratio (H$_{2}$O$_{2}$: ACDB) on the reaction rate have been studied. The ACDB oxidation conditions have been optimized.
Starting Page	307
Ending Page	313
Page Count	7
File Format	PDF
ISSN	00231584
Journal	Kinetics and Catalysis
Volume Number	54
Issue Number	3
e-ISSN	16083210
Language	English
Publisher	SP MAIK Nauka/Interperiodica
Publisher Date	2013-06-08
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Catalysis Physical Chemistry
Content Type	Text
Resource Type	Article
Subject	Chemistry Catalysis Modeling and Simulation Computer Science Applications

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