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REMOVAL ENHANCEMENT OF BASIC BLUE 41 BY RGO–TiO2 NANOCOMPOSITE SYNTHESIZED USING PULSED LASER

Author

Listed:
  • FATEMEH GHASEMI

    (Physics Department, Central Tehran Branch, Islamic Azad University, Tehran, Iran)

  • SALIMEH KIMIAGAR

    (#x2020;Nano Research Lab (NRL), Physics Department, Central Tehran Branch, Islamic Azad University, Tehran, Iran)

  • MOZHGAN SHAHBAZI

    (#x2021;Physics Department, Kharazmi University, Tehran, Iran)

  • HOSSEIN VOJOUDI

    (#xA7;School of Chemistry, College of Science, University of Tehran, Tehran, Iran)

Abstract

Graphene oxide (GO) and GO-TiO2 nanocomposite was produced then reduced under pulse laser irradiation (RGO–TiO2). Basic blue 41 (bb41) dye was removed from aqueous solutions by using RGO–TiO2 nanocomposites. The UV–Vis absorption and FTIR analysis were utilized to confirm the reduction of GO-TiO2 to RGO–TiO2. The results showed complete reduction of GO. X-ray diffraction (XRD), Raman spectra and scanning electron microscopy (SEM) analysis were applied to approve the RGO–TiO2 nanocomposite structure. The effect of pH on the bb41 removal by RGO–TiO2 was studied varying the pH from 1 to 11. The optimum pH and adsorbent dosage were found to be 9 and 0.2g/L with 98% efficiency, respectively. The calculated coefficients demonstrated that the Langmuir model was fixed to the experimental data. The results indicated that RGO–TiO2 could be engaged as an exceptional sorbent to remove bb41 dye which is in aqueous solution.

Suggested Citation

  • Fatemeh Ghasemi & Salimeh Kimiagar & Mozhgan Shahbazi & Hossein Vojoudi, 2018. "REMOVAL ENHANCEMENT OF BASIC BLUE 41 BY RGO–TiO2 NANOCOMPOSITE SYNTHESIZED USING PULSED LASER," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 25(01), pages 1-7, January.
    • Handle: RePEc:wsi:srlxxx:v:25:y:2018:i:01:n:s0218625x18500415
    DOI: 10.1142/S0218625X18500415
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    Keywords

    Reduced graphene; TiO2; pulse laser; removal; bb41;
    All these keywords.

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