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. 2017 Mar 3;7(3):54.
doi: 10.3390/nano7030054.

Microwave-Hydrothermal Synthesis of SnO2-CNTs Hybrid Nanocomposites with Visible Light Photocatalytic Activity

Shuisheng Wu  1   2 , Weili Dai  3
Affiliations

Microwave-Hydrothermal Synthesis of SnO2-CNTs Hybrid Nanocomposites with Visible Light Photocatalytic Activity

Shuisheng Wu et al. Nanomaterials (Basel). .

Erratum in

Abstract

SnO2 nanoparticles coated on carbon nanotubes (CNTs) were prepared via a simple microwave-hydrothermal route. The as-obtained SnO2-CNTs composites were characterized using X-ray powder diffraction, Raman spectroscopy, and transmission electron microscopy. The photocatalytic activity of as-prepared SnO2-CNTs for degradation of Rhodamine B under visible light irradiation was investigated. The results show that SnO2-CNTs nanocomposites have a higher photocatalytic activity than pure SnO2 due to the rapid transferring of electrons and the effective separation of holes and electrons on SnO2-CNTs.

Keywords: SnO2; carbon nanotubes; nanocomposite; photocatalytic.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
X-ray diffraction (XRD) patterns of SnO2-CNTs (carbon nanotubes) nanocomposite and SnO2.
Figure 2
Figure 2
Raman spectrum of SnO2–CNTs nanocomposites.
Figure 3
Figure 3
Transmission electron micrographs (TEM) of SnO2-CNTs nanocomposites. (a) low magnification; (b,c) high magnification
Figure 4
Figure 4
Ultraviolet-visible diffuse reflection (UV-Vis DRS) spectra of SnO2-CNTs and SnO2.
Figure 5
Figure 5
(a) The UV-Vis spectrum changes during Rhodamine B (RhB) (10−5 M) photodegradation by SnO2-CNTs photocatalysts; (b) Plots of photocatalytic degradation of RhB concentration vs. irradiation time in the presence of SnO2-CNTs samples; (c) dependence of −ln(C/C0) on irradiation time.
Figure 6
Figure 6
Proposed photocatalytic mechanism of SnO2-CNTs nanostructures. VB: Valence band; CB: conduction band.
See this image and copyright information in PMC

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