The effect of tin sulfide quantum dots size on photocatalytic and photovoltaic performance

Cheraghizade, Mohsen; Jamali‐Sheini, Farid; Yousefi, Ramin; Niknia, Farhad; Mahmoudian, M.R.; Sookhakian, M.

doi:10.1016/j.matchemphys.2017.04.008

Cited by 51 publications

(13 citation statements)

References 37 publications

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“…Figures 7 and 8 respectively illustrate the absorption spectra and the logarithmic rate [55,56] plots of MB degradation by the un-and Cr-doped SnO 2 NPs at different intervals of UV irradiation. According to these figures, Cr doping improves the degradation efficiency of the SnO 2 NPs.…”

Section: Resultsmentioning

confidence: 99%

Enhanced photocatalytic activity of $$\hbox {SnO}_{2}$$ NPs by chromium (Cr) concentration

Karimi

Haghighatzadeh

2019

Bull Mater Sci

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This study reports the synthesis of un-and chromium (Cr)-doped tin dioxide (SnO 2) nanoparticles (NPs) through chemical precipitation and their application for photodegradation of methylene blue dye. The obtained NPs were characterized by X-ray diffraction (XRD) analysis, transmission electron microscopy (TEM), Fourier transform infrared (FT-IR) spectroscopy, elemental mapping and ultraviolet-visible (UV-Vis) spectroscopy. The TEM and XRD results demonstrated that the SnO 2 NPs are spherical and contain polycrystalline tetragonal crystals. UV-Vis spectra showed that increasing the concentration of the Cr dopant enhances the light absorption potential of the SnO 2 NPs. Finally, the findings of the photocatalytic experiments performed for 120 min in ultraviolet irradiation under ambient conditions revealed an improvement in the degradation efficiency of the SnO 2 NPs by Cr doping.

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Section: Resultsmentioning

confidence: 99%

Enhanced photocatalytic activity of $$\hbox {SnO}_{2}$$ NPs by chromium (Cr) concentration

Karimi

Haghighatzadeh

2019

Bull Mater Sci

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“…Cheraghizade et al obtained SnS QDs by applying different sonication times of 10, 15, and 20 min. They observed that the sizes of the SnS QDs decreased from 7.15 to 3.66 nm with the times of sonication were enhanced [36]. Based on Figure 1e-f, the average size of CuS QDs obtained by microwave method Catalysts 2020, 10, 403 4 of 18 during 9 min.…”

Section: Morphologymentioning

confidence: 91%

“…Prolonged sonication-assisted synthesis results in smaller crystallite size SnS QDs with higher photocatalytic activity. This is due to the reduced size of SnS QDs, in which the ratio of surface-to-volume is enhanced and so electron-hole creation of samples are also increased [36]. Although, pristine SnS QDs had very low activity in toluene photodegradation, the application of SnS QDs onto TiO 2 surface most boosted reaction yield.…”

Section: Photocatalytic Activity In the Gas Phasementioning

confidence: 99%

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The Effect of AgInS2, SnS, CuS2, Bi2S3 Quantum Dots on the Surface Properties and Photocatalytic Activity of QDs-Sensitized TiO2 Composite

et al. 2020

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The effect of type (AgInS 2 , SnS, CuS 2 , Bi 2 S 3 ) and amount (5, 10, 15 wt%) of quantum dots (QDs) on the surface properties and photocatalytic activity of QDs-sensitized TiO 2 composite, was investigated. AgInS 2 , SnS, CuS 2 , Bi 2 S 3 QDs were obtained by hot-injection, sonochemical, microwave, and hot-injection method, respectively. To characterize of as-prepared samples high-resolution transmission electron microscopy (HRTEM), scanning electron microscopy (SEM), X-ray diffraction (XRD), UV-Vis spectroscopy and photoluminescence (PL) emission spectroscopy were applied. The size of AgInS 2 , SnS, CuS 2 , Bi 2 S 3 QDs were 12; 2-6; 2-3, and 1-2 nm, respectively. The QDs and QDs-sensitized TiO 2 composites obtained have been tested in toluene degradation under LEDs light irradiation (λ max = 415 nm and λ max = 375 nm). For pristine QDs the efficiency of toluene degradation increased in the order of AgInS 2 < Bi 2 S 3 < CuS < SnS under 375 nm and AgInS 2 < CuS < Bi 2 S 3 < SnS under 415 nm. In the presence of TiO 2 /SnS QDs_15% composite, 91% of toluene was degraded after 1 h of irradiation, and this efficiency was about 12 higher than that for pristine QDs under 375 nm. Generally, building the TiO 2 /AgInS 2 and TiO 2 /SnS exhibited higher photoactivity under 375 nm than the pristine TiO 2 and QDs which suggests a synergistic effect between QDs and TiO 2 matrix. Catalysts 2020, 10, 403 2 of 18 application of metal sulfides (M x S y ) for wide band semiconductors modification, because of their high charge separation efficiency and narrow band gaps, which possibly enable light harvesting at longer wavelengths [9]. Liu et al. studied the efficiency of AgInS 2 /TiO 2 heterostructures in 1,2-dichlorobenzene (o-DCB) degradation under visible light [10]. They observed that AgInS 2 /TiO 2 composites could expand the visible-light response range and greatly decreased the recombination of photogenerated electron−hole pairs in the composites. The degradation of o-DCB for the most active sample reaches about 50% after 8h of irradiation. Jang et al. prepared Ag-SnS-TiO 2 nanocomposite for methylene blue and rhodamine B degradation under simulated sunlight [11].The photoactivity of the produced photocatalysts was about 2-3 times higher than that of P25. Compared with bare TiO 2 the CuS/TiO 2 [12], CdS/TiO 2 [13-15], SnS/TiO 2 [16], Ag 2 S/TiO 2 [17,18], CuInS 2 /TiO 2 [19-21], Bi 2 S 3 /TiO 2 [22][23][24] nanocomposites present a significant improvement on photocatalytic reactions due to the decreasing recombination of electron-hole pairs and the broadened light absorption spectra. However, the metal sulfides commonly employed for TiO 2 modification have been used in nanoparticle sizes and not in quantum dots sizes. Further, it has been shown that the size of metal sulfides (MS) particles can have an impact on its physicochemical and optical properties. Recently, the literature data demonstrated that the decrease in particle size lowers the recombination of the electron-hole pair within the semiconductor particle. Quantum...

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“…Recently, chalcogenide photocatalysts can play an important role in the degradation of dyes, such as In 2 S 3 used for MB photocatalytic degradation under visible irradiation [ 9 ]; SnS, Sn 2 S 3 , and SnS 2 quantum dots were studied for the photocatalytic degradation of MB [ 20 ]; the photocatalysis of Sb 2 S 3 nanowires was investigated for the degradation of MO [ 21 ]; SnS microstructure was used for the photocatalytic degradation of Rhodamine B (RhB) under sunlight [ 22 ].…”

Section: Introductionmentioning

confidence: 99%

The Photocatalytic Application of Semiconductor Stibnite Nanostructure Synthesized via a Simple Microwave-Assisted Approach in Propylene Glycol for Degradation of Dye Pollutants and its Optical Property

et al. 2017

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Stibnite (Sb2S3) semiconducting material was successfully synthesized by a rapid and facile microwave route using antimony chloride (SbCl3) and sodiumthiosulfate (Na2S2O3) dissolved in propylene glycol (PG) containing different hydroxyethyl cellulose (HEC) masses. The phase identification, morphology, and elemental composition of products were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), field- emission scanning electron microscopy (FE-SEM), energy dispersive X-ray (EDX) spectroscopy, and Fourier transform infrared spectroscopy (FTIR). The results revealed the orthorhombic phase of Sb2S3 single crystal-forming sheaf-like nanostructure, and a possible formation mechanism was proposed and discussed. Its direct band gap calculated from UV-visible absorption is 1.60 eV. In this research, the photocatalytic activities of Sb2S3 nanostructure were investigated through the degradation of methyl orange (MO) and methylene blue (MB) under visible light irradiation. The as-obtained 0.30 g HEC-added solution (0.3 HEC-Sb2S3) photocatalyst exhibited better photocatalytic activity than the other products, which degraded 91% of MO within 300 min and 90% of MB within 240 min under the Xe-lamp irradiation. The first-order plot was fitted with this experiment which the rate constant (k) of 0.3 HEC-Sb2S3 for MO and MB degradation are 0.0085 and 0.0098 min−1, respectively. Therefore, the new experience with a novel and simple synthetic procedure of Sb2S3 photocatalyst that exhibits the characteristics of a highly effective photocatalyst under visible light irradiation was discovered.

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The effect of tin sulfide quantum dots size on photocatalytic and photovoltaic performance

Cited by 51 publications

References 37 publications

Enhanced photocatalytic activity of $$\hbox {SnO}_{2}$$ NPs by chromium (Cr) concentration

Enhanced photocatalytic activity of $$\hbox {SnO}_{2}$$ NPs by chromium (Cr) concentration

The Effect of AgInS2, SnS, CuS2, Bi2S3 Quantum Dots on the Surface Properties and Photocatalytic Activity of QDs-Sensitized TiO2 Composite

The Photocatalytic Application of Semiconductor Stibnite Nanostructure Synthesized via a Simple Microwave-Assisted Approach in Propylene Glycol for Degradation of Dye Pollutants and its Optical Property

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