Ultrasonic, photocatalytic and sonophotocatalytic degradation of Basic Red-2 by using Nb<sub>2</sub>O<sub>5</sub> nano catalyst

Vilas K. Mahajan; Sandip P. Patil; Shirish H. Sonawane; Gunvant H. Sonawane; Vilas K. Mahajan; Sandip P. Patil; Shirish H. Sonawane; Gunvant H. Sonawane

doi:10.3934/biophy.2016.3.415

AIMS Biophysics

2016, Volume 3, Issue 3: 415-430. doi: 10.3934/biophy.2016.3.415

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Research article

Ultrasonic, photocatalytic and sonophotocatalytic degradation of Basic Red-2 by using Nb₂O₅ nano catalyst

1.
Department of Chemistry, Kisan Arts, Commerce and Science College, Parola, Dist-Jalgaon-425111 (M.S), India
2.
Nano-chemistry Research Laboratory, G. T. Patil College, Nandurbar-425412 (M.S), India
3.
Department of Chemical Engineering, National Institute of Technology, Warangal (T.S), India

Received: 21 August 2016 Accepted: 19 September 2016 Published: 23 September 2016

The ultrasonic, photocatalytic and sonophotocatalytic degradation of Basic Red-2 accompanied by Nb₂O₅ nano catalysts were studied. The structure and morphology of synthesized Nb₂O₅ nano catalyst was investigated using scanning election microscopy (SEM), Electron dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD).The effects of various experimental parameters such as the Basic Red-2 concentration, catalyst dose, pH and addition of H₂O₂ on the ultrasonic, photocatalytic and sonophotocatalytic degradation were investigated. Photocatalytic and sonophotocatalytic degradation of Basic Red-2 was strongly affected by initial dye concentration, catalyst dose, H₂O₂ addition and pH. Basic pH (pH-10) was favored for the ultrasonic (US), photocatalytic (UV + Nb₂O₅) and sonophotocatalytic (US + UV + Nb₂O₅) degradation of Basic Red-2 by using Nb₂O₅ nano catalyst. The ultrasonic degradation of Basic Red-2 was enhanced by the addition of photocatalyst. Then, the effect of Nb₂O₅ dose on photocatalytic and sonophotocatalytic degradation were studied, and it was found that increase in catalyst dose increase in the percentage degradation of Basic Red-2. In addition, the effects of H₂O₂ on ultrasonic, photolytic, photocatalytic and sonophotocatalytic degradation was also investigated, and it was found that H₂O₂ enhances the % degradation of Basic Red-2. The possible mechanism of ultrasonic, photocatalytic and sonophotocatalytic degradation of Basic Red-2 reported by LC-MS shows generation of different degradation products
- Basic Red-2,
- photocatalyst,
- sonophotocatalyst,
- ultrasonic degradation,
- kinetics
Citation: Vilas K. Mahajan, Sandip P. Patil, Shirish H. Sonawane, Gunvant H. Sonawane. Ultrasonic, photocatalytic and sonophotocatalytic degradation of Basic Red-2 by using Nb2O5 nano catalyst[J]. AIMS Biophysics, 2016, 3(3): 415-430. doi: 10.3934/biophy.2016.3.415

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Abstract

The ultrasonic, photocatalytic and sonophotocatalytic degradation of Basic Red-2 accompanied by Nb₂O₅ nano catalysts were studied. The structure and morphology of synthesized Nb₂O₅ nano catalyst was investigated using scanning election microscopy (SEM), Electron dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD).The effects of various experimental parameters such as the Basic Red-2 concentration, catalyst dose, pH and addition of H₂O₂ on the ultrasonic, photocatalytic and sonophotocatalytic degradation were investigated. Photocatalytic and sonophotocatalytic degradation of Basic Red-2 was strongly affected by initial dye concentration, catalyst dose, H₂O₂ addition and pH. Basic pH (pH-10) was favored for the ultrasonic (US), photocatalytic (UV + Nb₂O₅) and sonophotocatalytic (US + UV + Nb₂O₅) degradation of Basic Red-2 by using Nb₂O₅ nano catalyst. The ultrasonic degradation of Basic Red-2 was enhanced by the addition of photocatalyst. Then, the effect of Nb₂O₅ dose on photocatalytic and sonophotocatalytic degradation were studied, and it was found that increase in catalyst dose increase in the percentage degradation of Basic Red-2. In addition, the effects of H₂O₂ on ultrasonic, photolytic, photocatalytic and sonophotocatalytic degradation was also investigated, and it was found that H₂O₂ enhances the % degradation of Basic Red-2. The possible mechanism of ultrasonic, photocatalytic and sonophotocatalytic degradation of Basic Red-2 reported by LC-MS shows generation of different degradation products

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