Uncovering the Mechanism for the Formation of Copper Thioantimonate (Sb<sup>V</sup>) Nanoparticles and Its Transition to Thioantimonide (Sb<sup>III</sup>)

Baum, Fábio; Pretto, Tatiane; Brolo, Alexandre G.; Santos, Marcos José Leite

doi:10.1021/acs.cgd.8b00667

Cited by 12 publications

(19 citation statements)

References 55 publications

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“…It shows all samples have absorption peak at about 750 nm, which corresponding to CuSbS 2 [13]. And the decrease of absorption at about 1400 nm may be caused by impurity phase Cu 3 SbS 4 [37]. The band gap of the CuSbS 2 nanoparticles is estimated to 1.41 eV, a value consistent with reported literature values (1.38-1.86 eV) [16,17].…”

Section: Resultssupporting

confidence: 85%

A novel CuSbS2–TiO2 nanoparticles synergy structure for photocatalysis

Zhi

Wang

Zhang

et al. 2020

J Mater Sci: Mater Electron

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In this work, a synergy structure to improve the photocatalytic properties of materials was proposed. CuSbS 2 nanoparticles synthesized by microwave irradiation method were dispersed in TiO 2 sol to form CuSbS 2-TiO 2 nanoparticles. The properties of composite materials with different TiO 2 sol concentration were investigated by XRD, XPS, etc. The results indicated the as-synthesized CuSbS 2 nanoparticles exhibited chalcostibite structure and the TiO 2 showed anatase phase. The CuSbS 2-TiO 2 nanoparticles had high absorbance in the visible light and good photocatalysts for the photodegradation reaction of Rhodamine B (RhB). When TiO 2 sol concentration was 0.23 mol/L, the sample possessed a photocatalytic degradation rate of 0.002 min −1 for the degradation of RhB, which was 3 times higher than that by the bare amorphous TiO 2 (0.0007 min −1).

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Section: Resultssupporting

confidence: 85%

A novel CuSbS2–TiO2 nanoparticles synergy structure for photocatalysis

Zhi

Wang

Zhang

et al. 2020

J Mater Sci: Mater Electron

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“…The nonstoichiometric Sb/S ratio in the early reaction stage was probably due to the oleylamine used in the synthesis. Several authors have already described that hydrolysis of antimony in fatty amines can lead to the formation of Sb 2 O 3 [ 33 – 35 ]. Baum et al studied the formation of copper thioantimonate by injecting a heated (60 °C) and degassed S-OlAm precursor into a heated (200–250 °C) and degassed mixture of Cu(I)Cl, Sb(III)Cl 3 , and OlAm.…”

Section: Resultsmentioning

confidence: 99%

“…Baum et al studied the formation of copper thioantimonate by injecting a heated (60 °C) and degassed S-OlAm precursor into a heated (200–250 °C) and degassed mixture of Cu(I)Cl, Sb(III)Cl 3 , and OlAm. When they omitted sulfur and Cu(I)Cl in this process, they obtained cubic α-Sb 2 O 3 (senarmontite) [ 33 ]. In contrast, they could synthesize the desired copper thioantimonate when they used Sb 2 O 3 instead of Sb(III)Cl 3 in a following synthesis.…”

Section: Resultsmentioning

confidence: 99%

Revealing the formation mechanism and band gap tuning of Sb₂S₃ nanoparticles

Joschko

Wafo

Malsi

et al. 2021

Beilstein J. Nanotechnol.

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Sb2S3 is a promising nanomaterial for application in solar cells and in the fields of electronics and optoelectronics. Herein, Sb2S3 nanoparticles were prepared via the hot-injection approach. In contrast to earlier work, the reaction temperature was decreased to 150 °C so that the reaction was slowed down and could be stopped at defined reaction stages. Thereby, the formation mechanism of the nanomaterial and the associated kinetics could be revealed. Based on morphological and structural analyses, it is suggested that seed particles (type 0) formed immediately after injecting the antimony precursor into the sulfur precursor. These seeds fused to form amorphous nanoparticles (type I) that contained a lower percentage of sulfur than that corresponding to the expected stoichiometric ratio of Sb2S3. The reason for this possibly lies in the formation of an oxygen- or carbon-containing intermediate during the seeding process. Afterward, the type I nanoparticles aggregated into larger amorphous nanoparticles (type II) in a second hierarchical assembly process and formed superordinate structures (type III). This process was followed by the crystallization of these particles and a layer-like growth of the crystalline particles by an Ostwald ripening process at the expense of the amorphous particles. It was demonstrated that the kinetic control of the reaction allowed tuning of the optical band gap of the amorphous nanoparticles in the range of 2.2–2.0 eV. On the contrary, the optical band gap of the crystalline particles decreased to a value of 1.7 eV and remained constant when the reaction progressed. Based on the proposed formation mechanism, future syntheses for Sb2S3 particles can be developed, allowing tuning of the particle properties in a broad range. In this way, the selective use of this material in a wide range of applications will become possible.

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“…3 [44][45][46]. The polarons hopping between W 6+ and W 5+ /W 4+ afford the photochromism of PbWO 4 ceramics.…”

Section: Resultsmentioning

confidence: 99%

Large reversible upconversion luminescence modification and 3D optical information storage in femtosecond laser irradiation-subjected photochromic glass

et al. 2022

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Fast response, high luminescence contrast, three-dimensional (3D) storage, and nondestructive reading are key factors for the optical storage application of photochromic materials. Femtosecond (fs) laser direct writing technology with multiphoton nonlinear absorption is becoming a useful tool for microprocessing functional units in the 3D space of glass owing to its remarkable advantages, such as a fast processing speed and high processing accuracy. Herein, the photochromism of transparent glass codoped with rare-earth ions was investigated under 800-nm fs laser irradiation, affording a fast response. The photochromic glass achieves an upconversion luminescence (UCL) modification of 92%. The photochromic glass can be bleached back to its original color using heat treatment. The transmittance and UCL modification show excellent reproducibility under alternating stimulations between 800-nm fs laser irradiation and heat treatment. The data can be written in the interior of the transparent photochromic glass using 800-nm fs laser irradiation, facilitating 3D information storage. These results suggest that the 800-nm fs laser irradiation-subjected photochromic glass is an ideal optical data storage medium.

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Uncovering the Mechanism for the Formation of Copper Thioantimonate (Sb^V) Nanoparticles and Its Transition to Thioantimonide (Sb^III)

Cited by 12 publications

References 55 publications

A novel CuSbS2–TiO2 nanoparticles synergy structure for photocatalysis

A novel CuSbS2–TiO2 nanoparticles synergy structure for photocatalysis

Revealing the formation mechanism and band gap tuning of Sb₂S₃ nanoparticles

Large reversible upconversion luminescence modification and 3D optical information storage in femtosecond laser irradiation-subjected photochromic glass

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Uncovering the Mechanism for the Formation of Copper Thioantimonate (SbV) Nanoparticles and Its Transition to Thioantimonide (SbIII)

Cited by 12 publications

References 55 publications

A novel CuSbS2–TiO2 nanoparticles synergy structure for photocatalysis

A novel CuSbS2–TiO2 nanoparticles synergy structure for photocatalysis

Revealing the formation mechanism and band gap tuning of Sb2S3 nanoparticles

Large reversible upconversion luminescence modification and 3D optical information storage in femtosecond laser irradiation-subjected photochromic glass

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Product

Resources

About

Uncovering the Mechanism for the Formation of Copper Thioantimonate (Sb^V) Nanoparticles and Its Transition to Thioantimonide (Sb^III)

Revealing the formation mechanism and band gap tuning of Sb₂S₃ nanoparticles