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Issue 92, 2016
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Synthesis of Zn-doped In2O3 nano sphere architectures as a triethylamine gas sensor and photocatalytic properties

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Abstract

Zn-doped In2O3 nano spheres (ZIO NSs) were synthesized by calcining the precipitates prepared through a facile one-step hydrothermal synthesis method. X-ray powder diffraction (XRD), scanning electron microscopy (SEM), X-ray photo-electron spectroscopy (XPS) and energy dispersive X-ray spectrometry (EDX) were respectively used to characterize surface crystallinity and morphologies. Gas sensors were made based on the as-synthesized materials to investigate their gas sensing properties of triethylamine (TEA). The ZIO NSs microstructures showed that the sensor response (S = Ra/Rg) reached 36 at 50 ppm, which was much larger than the previous results, and this combined with a low operating temperature of 280 °C, suggested a promising application of ZIO NSs in TEA gas sensing. In addition, the photocatalytic activities of ZIO NSs have been evaluated by the degradation measurement of methylene blue (MB), methylene orange (MO), and rhodamine B (RhB). As a result, the ZIO NSs demonstrate a much higher selectivity on the degradation of MB (90%) than that of MO (20%) and RhB (35%) in 60 min of measurement.

Graphical abstract: Synthesis of Zn-doped In2O3 nano sphere architectures as a triethylamine gas sensor and photocatalytic properties

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Publication details

The article was received on 29 jún. 2016, accepted on 07 sep. 2016 and first published on 08 sep. 2016


Article type: Paper
DOI: 10.1039/C6RA16789F
RSC Adv., 2016,6, 89847-89854

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    Synthesis of Zn-doped In2O3 nano sphere architectures as a triethylamine gas sensor and photocatalytic properties

    X. Sun, X. Liu, X. Deng and X. Xu, RSC Adv., 2016, 6, 89847
    DOI: 10.1039/C6RA16789F

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