Synergistic effect on the visible light activity of Ti3+ doped TiO2 nanorods/boron doped graphene composite.

Abstract:

:TiO2/graphene (TiO2-x/GR) composites, which are Ti(3+) self-doped TiO2 nanorods decorated on boron doped graphene sheets, were synthesized via a simple one-step hydrothermal method using low-cost NaBH4 as both a reducing agent and a boron dopant on graphene. The resulting TiO2 nanorods were about 200 nm in length with exposed (100) and (010) facets. The samples were characterized by X-ray diffraction (XRD), UV-visible diffuse reflectance spectroscopy, X-band electron paramagnetic resonance (EPR), X-ray photoelectron spectra (XPS), transmission electron microscope (TEM), Raman, and Fourier-transform infrared spectroscopy (FTIR). The XRD results suggest that the prepared samples have an anatase crystalline structure. All of the composites tested exhibited improved photocatalytic activities as measured by the degradation of methylene blue and phenol under visible light irradiation. This improvement was attributed to the synergistic effect of Ti(3+) self-doping on TiO2 nanorods and boron doping on graphene.

journal_name

Sci Rep

journal_title

Scientific reports

authors

Xing M,Li X,Zhang J

doi

10.1038/srep05493

subject

Has Abstract

pub_date

2014-06-30 00:00:00

pages

5493

issn

2045-2322

pii

srep05493

journal_volume

4

pub_type

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