Enhancement of visible light organic dyes photodegradation using TiO2 (001)/Graphene oxide nanocomposite

Arini Izzataddini, Yoga Romdoni, Helmiyati, Rika Novi Marantika, Zulhemi Amir, Grandprix T.M. Kadja, Prastika K. Jiwanti, Munawar Khalil, Badrul Mohamed Jan

Research output: Contribution to journalArticlepeer-review

Abstract

Photodegradation has been considered one of the most promising ways to treat wastewater. In this work, TiO2 (001)/Graphene Oxide (GO) nanocomposite has been successfully synthesized using hydrogen fluoride as a crystal-directing agent towards (001) facets. The nanocomposite was characterized by FTIR, XRD, Raman, HR-TEM, and diffuse reflectance spectra (DRS). Based on the result, the TiO2 (001) was decorated on the surface of the GO sheet with high absorption of visible light. In addition, as-prepared TiO2 (001)/GO nanocomposite provides a synergistic effect by increasing dye degradation activity with 95% and 99% removal rates for the photodegradation of methylene blue and crystal violet dyes, respectively, under LED irradiation for 10 min. The photodegradation kinetics of TiO2 (001)/GO was also successfully modeled and was found to follow the pseudo-first order kinetic. The enhanced photodegradation of the TiO2 (001)/GO nanocomposite attributed to the excellent synergy between TiO2 (001) nanoparticles and GO, which results in the highly efficient photocatalyst for removing organic pollutants in water.

Original languageEnglish
Article number111379
JournalInorganic Chemistry Communication
Volume157
DOIs
Publication statusPublished - Nov 2023

Keywords

  • Crystal facet
  • Graphene oxide
  • Nanocomposite
  • Organic dyes
  • Photocatalysis
  • TiO

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