Bi2S3 microflowers assembled from one-dimensional nanorods with a high photoresponse

Tian, Yuan; Ding, Tao-tao; Zhu, Xiaohui; Tu, Ya-Fang; Zheng, Guang

doi:10.1007/s10853-015-9089-7

Cited by 11 publications

(8 citation statements)

References 39 publications

(46 reference statements)

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“…In order to further explore the surface compositions and chemical state of the sample, X‐ray photoelectron spectroscopy (XPS) was acquired (Figure a,b), in which the peaks of Bi and S are found. The binding energy of Bi 4 f were identified at 158.7 eV (Bi 4f 7/2 ) and 164.0 eV (Bi 4f 5/2 ) (Figure a), confirming the presence of Bi 3+ . S 2s peak around 225.8 eV can be detected for as‐prepared Bi 2 S 3 sample (Figure S1 in the Supporting Information) .…”

Section: Resultsmentioning

confidence: 99%

Hydrothermal Synthesis of Urchin‐like Bi₂S₃ Nanostructures for Superior Visible‐light‐driven Cr(VI) Removal Capacity

et al. 2018

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In this work, large amounts of urchin‐like Bi2S3 nanostructures assembled from radially oriented nanorods were prepared by a simple hydrothermal method. The as‐prepared Bi2S3 nanostructures possess an orthorhombic crystal structure with a high crystallinity. More importantly, the obtained Bi2S3 nanostructures are spherical architectures composed of large quantities of nanorods with highly active sites. This attractive architecture can provide a large active surface area for photocatalysis. The photodegradation of Cr(VI) under visible light irradiation indicated that 95% of Cr(VI) was degradated within 30 min using the as‐prepared Bi2S3 nanoparticle as a photocatalyst. Further investigations revealed that the pH value of the solution has a significant effect on the photocatalytic reduction ability as well. Significantly, the kinetic constant of urchin‐like Bi2S3 nanostructures for Cr(VI) degradation is about 100 times that of Bi2S3 nanoflowers and commercial P25. Furthermore, the photocurrent of urchin‐like Bi2S3 nanostructures is still higher than that of Bi2S3 nanoflowers. We believed that the urchin‐like Bi2S3 nanostructures are promising materials for Cr(VI) photoreduction.

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Section: Resultsmentioning

confidence: 99%

Hydrothermal Synthesis of Urchin‐like Bi₂S₃ Nanostructures for Superior Visible‐light‐driven Cr(VI) Removal Capacity

et al. 2018

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“…In our experiments, thiourea was chosen to act as the sulfide source, for constituting the Bi 3+ -thiourea complexes, initially. Under elevated temperature, these complexes decomposed, accompanied by shaping into needle-like nanospheres with nucleated Bi 2 S 3 48 49 . As time went on, Bi 2 S 3 grew gradually to improve the rough surface, at the expense of Bi 2 S 3 particles or rods.…”

Section: Resultsmentioning

confidence: 99%

Superior adsorption and photoinduced carries transfer behaviors of dandelion-shaped Bi2S3@MoS2: experiments and theory

Wang

Zhang

et al. 2017

Sci Rep

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The enhanced light-harvesting capacity and effective separation of photogenerated carriers in fantastic hierarchical heterostructures enjoy striking attention for potential applications in the field of solar cells and photocatalysis. A three-dimensional (3D) dandelion-shaped hierarchical Bi2S3 microsphere compactly decorated with wing-shaped few layered MoS2 lamella (D-BM) was fabricated via a facile hydrothermal self-assembly process. Especially, polyethylene glycol (PEG) has been proven as the vital template to form D-BM microsphere. Importantly, the as-prepared D-BM microsphere presents pH-dependent superior adsorption behavior and remarkable visible light photocatalytic activity for degradation of organic dyestuffs (Rhodamine B/RhB and Methylene blue/MB), far exceeding those for the pure Bi2S3 and MoS2. It is understandable that D-BM with high surface area possesses more active sites and promotes light utilization due to the unique porous structure with outspread wings. Besides, based on the experiments and theoretical calculations, the staggered type II band alignment of D-BM permits the charge injection from Bi2S3 to MoS2, subsequently accelerates the separation and restrains the recombination of carriers, leading to excellent photocatalytic activity, as well as the photoconductance and photoresponse performance (with Ilight/Idark ratio 567).

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“…It has a suitable band gap (E g = 1.3–1.7 eV) [ 1 ], which is very close to the optimal absorption energy band gap of solar cells [ 2 ]. The Bi 2 S 3 semiconductor can extend the absorption width of sunlight to the near-infrared band and have a high absorption coefficient [ 3 ]. Moreover, it has a relatively high carrier mobility [ 4 ].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Bi ₂ S ₃ thin films based on pulse-plating bismuth nanocrystallines and its photoelectrochemical properties

et al. 2020

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The solubility of Bi 3+ in aqueous solution is an important factor that limits the fabrication of high-quality Bi 2 S 3 thin films. In order to find a low-cost method to manufacture high-quality Bi 2 S 3 thin films, we are reporting the preparation of the Bi 2 S 3 thin films based on pulse-plating method in this paper for the first time. The nano-bismuth particles were obtained by electroplating on fluorine-doped SnO 2 (FTO)-coated conducting glass substrates with saturated bismuth potassium citrate solution as the electroplating bath, and then it was put into a muffle furnace to oxidize. Finally, the thin films depositing on FTO glass substrates were put into the thioacetamide solution for vulcanization. In the end, the Bi 2 S 3 thin films were successfully prepared on FTO glass substrates. Different characterization techniques were used to characterize the structure, morphology and photoelectrochemical properties of the prepared thin films. The test results revealed that we used this method to synthesize the high-quality Bi 2 S 3 thin films, thus the Bi 2 S 3 materials synthesized through this method are promising candidates in photoelectrochemical application.

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Bi2S3 microflowers assembled from one-dimensional nanorods with a high photoresponse

Cited by 11 publications

References 39 publications

Hydrothermal Synthesis of Urchin‐like Bi₂S₃ Nanostructures for Superior Visible‐light‐driven Cr(VI) Removal Capacity

Hydrothermal Synthesis of Urchin‐like Bi₂S₃ Nanostructures for Superior Visible‐light‐driven Cr(VI) Removal Capacity

Superior adsorption and photoinduced carries transfer behaviors of dandelion-shaped Bi2S3@MoS2: experiments and theory

Synthesis of Bi ₂ S ₃ thin films based on pulse-plating bismuth nanocrystallines and its photoelectrochemical properties

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Bi2S3 microflowers assembled from one-dimensional nanorods with a high photoresponse

Cited by 11 publications

References 39 publications

Hydrothermal Synthesis of Urchin‐like Bi2S3 Nanostructures for Superior Visible‐light‐driven Cr(VI) Removal Capacity

Hydrothermal Synthesis of Urchin‐like Bi2S3 Nanostructures for Superior Visible‐light‐driven Cr(VI) Removal Capacity

Superior adsorption and photoinduced carries transfer behaviors of dandelion-shaped Bi2S3@MoS2: experiments and theory

Synthesis of Bi 2 S 3 thin films based on pulse-plating bismuth nanocrystallines and its photoelectrochemical properties

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Hydrothermal Synthesis of Urchin‐like Bi₂S₃ Nanostructures for Superior Visible‐light‐driven Cr(VI) Removal Capacity

Hydrothermal Synthesis of Urchin‐like Bi₂S₃ Nanostructures for Superior Visible‐light‐driven Cr(VI) Removal Capacity

Synthesis of Bi ₂ S ₃ thin films based on pulse-plating bismuth nanocrystallines and its photoelectrochemical properties