Facile microwave-assisted synthesis of SnS2 nanoparticles for visible-light responsive photocatalyst

Park, Sungmook; Park, Jihong; Selvaraj, Rengaraj; Kim, Younghun

doi:10.1016/j.jiec.2015.06.036

Cited by 64 publications

(16 citation statements)

References 26 publications

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“…During the initial stage of crystal nucleation and growth processes in the photochemical synthesis, the SnCl 4 interact to form a complex with TAA under acidic condition. In this approach, TAA was chosen as the sulfur (S) source permitting only slow decomposition rate in aqueous solution to give a lower degree of supersaturation [25,35,49]. The overall photochemical synthesis for the H 2 S formation on halogen-lamp irradiation is represented in the following reactions: CH 3 CSNH 2 + H 2 O → CH 3 CONH 2 + H 2 S H 2 S → 2H + + S 2− Sn4++S2−→hvSnS2−normalx…”

Section: Resultsmentioning

confidence: 99%

“…Clearly, intense peaks of SnS 2-x are measured at 15.1°, 28.4°, 32.3°, and 50.1° corresponding to crystal (0 0 1) plan, (1 0 0) plan, (1 0 1) plan and (1 1 0) plan, respectively. By analyzing Bragg reflection measured at 2θ = 15.1°, the favored orientation growth of PS-SnS 2-x is parallel to the C-direction, indicating a preferential stacking along the (0 0 1) direction stronger than the (1 0 0) and (1 0 1) planes due to the anisotropic arrangements [ 25 ]. From the XRD analysis, the XRD diffractogram match well with the assignment of a 2T-type hexagonal layered for nanosheets PS-SnS 2-x having well-ordered structure due to weak van der Waals forces [ 26 , 27 , 28 , 29 ].…”

Section: Resultsmentioning

confidence: 99%

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Photochemical Synthesis of Nanosheet Tin Di/Sulfide with Sunlight Response on Water Pollutant Degradation

et al. 2019

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The photochemical synthesis of two-dimensional (2D) nanostructured from semiconductor materials is unique and challenging. We report, for the first time, the photochemical synthesis of 2D tin di/sulfide (PS-SnS2-x, x = 0 or 1) from thioacetamide (TAA) and tin (IV) chloride in an aqueous system. The synthesized PS-SnS2-x were characterized by X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDX), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), a particle size distribution analyzer, X-ray photoelectron spectroscopy (XPS), Fourier-transform infrared spectroscopy (FTIR), thermal analysis, UV–Vis diffuse reflectance spectroscopy (DR UV–Vis), and photoluminescence (PL) spectroscopy. In this study, the PS-SnS2-x showed hexagonally closed-packed crystals having nanosheets morphology with the average size of 870 nm. Furthermore, the nanosheets PS-SnS2-x demonstrated reusable photo-degradation of methylene blue (MB) dye as a water pollutant, owing to the stable electronic conducting properties with estimated bandgap (Eg) at ~2.5 eV. Importantly, the study provides a green protocol by using photochemical synthesis to produce 2D nanosheets of semiconductor materials showing photo-degradation activity under sunlight response.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Photochemical Synthesis of Nanosheet Tin Di/Sulfide with Sunlight Response on Water Pollutant Degradation

et al. 2019

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“…This has led to innovative approaches to fabricating quantum dots of control shape and size [49]. Fabrication approaches including the single-source approach, hot injection, colloidal route, hydrothermal, microwave, solvothermal, electrodeposition, aqueous solution, pyrolysis, precipitation [50,51,52,53,54,55,56,57,58,59], etc., has been adopted for fabrication QDs. Single-source precursors have been distinguished as an effective approach that produces high-quality QDs.…”

Section: Overview Of Single-source Molecular Precursor Synthesis Omentioning

confidence: 99%

The Frontiers of Nanomaterials (SnS, PbS and CuS) for Dye-Sensitized Solar Cell Applications: An Exciting New Infrared Material

2019

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To date, extensive studies have been done on solar cells on how to harness the unpleasant climatic condition for the binary benefits of renewable energy sources and potential energy solutions. Photovoltaic (PV) is considered as, not only as the future of humanity’s source of green energy, but also as a reliable solution to the energy crisis due to its sustainability, abundance, easy fabrication, cost-friendly and environmentally hazard-free nature. PV is grouped into first, second and third-generation cells. Dye-sensitized solar cells (DSSCs), classified as third-generation PV, have gained more ground in recent times. This is linked to their transparency, high efficiency, shape, being cost-friendly and flexibility of colour. However, further improvement of DSSCs by quantum dot sensitized solar cells (QDSSCs) has increased their efficiency through the use of semiconducting materials, such as quantum dots (QDs), as sensitizers. This has paved way for the fabrication of semiconducting QDs to replace the ideal DSSCs with quantum dot sensitized solar cells (QDSSCs). Moreover, there are no absolute photosensitizers that can cover all the infrared spectrum, the infusion of QD metal sulphides with better absorption could serve as a breakthrough. Metal sulphides, such as PbS, SnS and CuS QDs could be used as photosensitizers due to their strong near infrared (NIR) absorption properties. A few great dependable and reproducible routes to synthesize better QD size have attained much ground in the past and of late. The injection of these QD materials, which display (NIR) absorption with localized surface plasmon resonances (SPR), due to self-doped p-type carriers and photocatalytic activity could enhance the performance of the solar cell. This review will be focused on QDs in solar cell applications, the recent advances in the synthesis method, their stability, and long term prospects of QDSSCs efficiency.

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“…Synthetic routes such as hydrothermal [26], solvothermal [27], hot injection [28], aqueous solution [29], pyrolysis [30], colloidal route [31], single-source approach [32,33], precipitation [34], microwave [35], electrodeposition [36], and so on have been utilized for the synthesis of SnS nanoparticles. e single-source precursor has proven to be a more effective route that forms nanoparticles of high qualities with well-defined size and shape.…”

Section: Introductionmentioning

confidence: 99%

Effect of Temperature and Capping Agents on Structural and Optical Properties of Tin Sulphide Nanocrystals

Oluwalana

Ajibade

2019

Journal of Nanotechnology

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SnS nanocrystals were synthesized using bis(phenylpiperazine dithiocarbamate)tin(II) in oleic acid (OA) and octadecylamine (ODA) at three different temperatures (150, 190, and 230°C). XRD diffraction pattern confirms that OASnS and ODASnS nanoparticles are in the orthorhombic phase and the type of capping agent used affects the crystallinity. Transmission electron microscopy (TEM) images shows spherically shaped nanocrystals for oleic acid capped SnS (OASnS) while octadecylamine (ODASnS) are cubic. Monodispersed SnS of size range 10.67–17.74 nm was obtained at 150°C for OASnS while the biggest-sized nanocrystals were obtained at 230°C for ODASnS. Temperature and capping agents tuned the crystallite sizes and shapes of the as-prepared nanocrystals. Electron dispersive X-ray spectroscopy indicates the formation of tin sulphide with the presence of Sn and S peaks in the nanocrystals. Flowery and agglomerated spherical-like morphology were observed for ODASnS and OASnS nanocrystals, respectively, using a SEM (scanning electron microscope). Direct electronic band gaps of the synthesized SnS nanocrystals are 1.71–1.95 eV and 1.93–2.81 eV for OASnS and ODASnS nanocrystals, respectively.

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Facile microwave-assisted synthesis of SnS2 nanoparticles for visible-light responsive photocatalyst

Cited by 64 publications

References 26 publications

Photochemical Synthesis of Nanosheet Tin Di/Sulfide with Sunlight Response on Water Pollutant Degradation

Photochemical Synthesis of Nanosheet Tin Di/Sulfide with Sunlight Response on Water Pollutant Degradation

The Frontiers of Nanomaterials (SnS, PbS and CuS) for Dye-Sensitized Solar Cell Applications: An Exciting New Infrared Material

Effect of Temperature and Capping Agents on Structural and Optical Properties of Tin Sulphide Nanocrystals

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