Visible-light-driven photocatalytic and chemical sensing properties of SnS2 nanoflakes.

Autor: Umar A; Department of Chemistry, College of Science and Arts, Najran University, P.O. Box 1988, Najran 11001, Kingdom of Saudi Arabia. ahmadumar786@gmail.com, Akhtar MS, Dar GN, Abaker M, Al-Hajry A, Baskoutas S
Jazyk: angličtina
Zdroj: Talanta [Talanta] 2013 Sep 30; Vol. 114, pp. 183-90. Date of Electronic Publication: 2013 Mar 28.
DOI: 10.1016/j.talanta.2013.03.050
Abstrakt: This work demonstrated the successful and facile large-scale synthesis and characterizations of SnS2 nanoflakes. The detailed morphological studies revealed that the synthesized products were nanoflakes and were grown in large quantity. The XRD pattern and detailed compositional studies confirmed that the synthesized SnS2 nanoflakes were well-crystalline and possessing hexagonal SnS2 phase. The synthesized SnS2 nanoflakes were used as efficient photocatalysts for photocatalytic degradation and effective electron mediators for the fabrication of chemical sensor. The photocatalytic properties of SnS2 nanoflakes towards the photocatalytic degradation of Rhodamine B dye under visible light irradiation showed reasonably good degradation of ~61%. Moreover, the as-synthesized SnS2 nanoflakes were used as efficient electron mediators for the fabrication of nitroaniline chemical sensor by simple I-V technique. Very high-sensitivity of ~ 505.82±0.02 mAcm(-2).(mole/L)(-1) and experimental detection limit of ~15×10(-6) (mole/L) in a short response time of ~10.0 s with LDR in the range of 15.6×10(-6)-0.5×10(-3) mole L(-1) were observed for the fabricated nitroaniline chemical sensor. The observed results indicated that the SnS2 nanoflakes can efficiently be used as visible-light-driven photocatalysts and the fabrication of ultra-high sensitive chemical sensors.
(Copyright © 2013 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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