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

Fatemeh Ghasemi, Salimeh Kimiagar, Mozhgan Shahbazi and Hossein Vojoudi
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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

Surface Review and Letters (SRL), 2018, vol. 25, issue 01, 1-7

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.

Keywords: Reduced graphene; TiO2; pulse laser; removal; bb41 (search for similar items in EconPapers)
Date: 2018
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DOI: 10.1142/S0218625X18500415

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