Simultaneous Photocatalytic Removal of Cr(IV) Ions and Methylene Blue Using InVO₄/TiO₂ Nanocomposites under the Sunlight Irradiation

Abstract:

InVO4/TiO2 nanocomposites were synthesized via a sol-gel process, and their microstructure and morphology were characterized by XRD and FESEM. XRD analysis indicated that incorporation of InVO4 with low content (In:Ti mole ratio of 1:200) could not change the crystallinity of anatase TiO2. The photocatalytic activity of anatase TiO2 increased for more than 2 folds by incorporating small amount of InVO4 into TiO2. The MB degradation rate kapp increased from 1.147×10-2 to 1.75×10-2 min-1 while the added Cr(IV) concentration was 5mg/L. The results indicated that simultaneous removal of aqueous Cr(IV) ions and organic compounds was feasible in the photocataltyic reactions under sunlight irradiation.

• Periodical: Advanced Materials Research (Volume 668)
• Pages: 313-316
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.668.313
• Online since: March 2013
• Authors: Zhuo Zhao
• Keywords: Cr(IV) Ions, InVO₄/TiO₂ Nanocomposite, Methylene Blue, Simultaneous Removal, Visible Light Induced Photocatalysis

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