DECOLORIZATION OF C.I. REACTIVE RED 120 IN THE PRESENCE OF HYDROGEN PEROXIDE AND MAGNETIC NANOPARTICLES OF COBALT-IRON OXIDE AS A CATALYST

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TEHRANI BAGHA A.R.; GHARAGOZLOU M.; EMAMI F.

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Journal: JOURNAL OF COLOR SCIENCE AND TECHNOLOGY Year:2012 | Volume:6 | Issue:1 Page(s): 77-86

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Title

DECOLORIZATION OF C.I. REACTIVE RED 120 IN THE PRESENCE OF HYDROGEN PEROXIDE AND MAGNETIC NANOPARTICLES OF COBALT-IRON OXIDE AS A CATALYST

Author(s)

TEHRANI BAGHA A.R. | GHARAGOZLOU M. | EMAMI F. | Issue Writer Certificate

Keywords

MAGNETIC NANOPARTICLESQ1

COBALT-IRON OXIDEQ2

CATALYTIC OXIDATIONQ2

DECOLORIZATIONQ2

REACTIVE RED 120Q2

Abstract

In this work, the catalytic degradation of C.I. REACTIVE RED 120 (RR120) using MAGNETIC NANOPARTICLES of COBALT-IRON OXIDE in the presence of hydrogen peroxide was studied. The MAGNETIC NANOPARTICLES of COBALT-IRON OXIDE have been prepared by modified sol-gel method and have been characterized by XRD, TEM and VSM methods. The prepared nanoparticles were nanocrystalline pure single-phase and with particle sizes of 16-21 nm. Values of saturation magnetization, remanent magnetization and coersivity were found to be 68 emu/g, 31 emu/g and 1824 Oe, respectively.The MAGNETIC NANOPARTICLES of COBALT-IRON OXIDE showed its catalytic effect for dye degradation over a wide range of pH=2-8 with a maximum effect at pH=2-3. The DECOLORIZATION rate increased by increasing the amount of catalyst, the concentration of hydrogen peroxide and temperature. The optimal condition for complete DECOLORIZATION of RR120 (50 ppm, 50 ml) was found to be 0.1 g/l of catalyst, 10 mM hydrogen peroxide at pH=3 and 75oC. The recovered nanoparticles of COBALT-IRON OXIDE showed almost the same catalytic activity as the first time after 6 cycles of recovery and reuse.

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APA: Copy

TEHRANI BAGHA, A.R., GHARAGOZLOU, M., & EMAMI, F.. (2012). DECOLORIZATION OF C.I. REACTIVE RED 120 IN THE PRESENCE OF HYDROGEN PEROXIDE AND MAGNETIC NANOPARTICLES OF COBALT-IRON OXIDE AS A CATALYST. JOURNAL OF COLOR SCIENCE AND TECHNOLOGY, 6(1), 77-86. SID. https://sid.ir/paper/137203/en

Vancouver: Copy

TEHRANI BAGHA A.R., GHARAGOZLOU M., EMAMI F.. DECOLORIZATION OF C.I. REACTIVE RED 120 IN THE PRESENCE OF HYDROGEN PEROXIDE AND MAGNETIC NANOPARTICLES OF COBALT-IRON OXIDE AS A CATALYST. JOURNAL OF COLOR SCIENCE AND TECHNOLOGY[Internet]. 2012;6(1):77-86. Available from: https://sid.ir/paper/137203/en

IEEE: Copy

A.R. TEHRANI BAGHA, M. GHARAGOZLOU, and F. EMAMI, “DECOLORIZATION OF C.I. REACTIVE RED 120 IN THE PRESENCE OF HYDROGEN PEROXIDE AND MAGNETIC NANOPARTICLES OF COBALT-IRON OXIDE AS A CATALYST,” JOURNAL OF COLOR SCIENCE AND TECHNOLOGY, vol. 6, no. 1, pp. 77–86, 2012, [Online]. Available: https://sid.ir/paper/137203/en

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