Abstract
A series of Fe 2O 3 and TiO 2 co-doped graphene aerogel (Fe 2O 3–TiO 2–GA) nanocomposites with a unique 3D architecture are assembled by a one-pot hydrothermal method combined with freeze-drying. The one with 30 wt% Fe 2O 3 exhibits the highest adsorptivity (95.0%) and the another with 25 wt% Fe 2O 3 displays the highest total efficiency (97.7%) including adsorption and visible light-driven photocatalytic degradation for rhodamine B dyes (20.0 mg L −1, 25 mL) within 1 h over 5.0 mg of the nanocomposites. The materials also display satisfactory cyclic stability and the removal efficiency can be 81.8% even after four runs. Additionally, a related photocatalytic mechanism is proposed.
Original language | English |
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Pages (from-to) | 407-415 |
Number of pages | 9 |
Journal | Journal of Industrial and Engineering Chemistry |
Volume | 61 |
DOIs | |
Publication status | Published - 25 May 2018 |
Keywords
- 3D porous architecture
- Adsorbents
- Fe O –TiO –GA
- Rhodamine B dyes
- Visible light-driven photocatalysts
ASJC Scopus subject areas
- General Chemical Engineering