Morphologic control of Sb-rich Sb<sub>2</sub>Se<sub>3</sub> to adjust its catalytic hydrogenation properties for p-nitrophenol

Tang, Aidong; Long, Minnan; Liu, P.; Tan, Lin; He, Zhen

doi:10.1039/c4ra11068d

Cited by 12 publications

(11 citation statements)

References 26 publications

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“…In a typically catalytic procedure, p -nitrophenol aqueous solution (100 μL 0.025 mol/L) was mixed with 20 ml of deionized water, and the following procedures remain the same as our previous works [30]. …”

Section: Methodsmentioning

confidence: 99%

Preparation and Enhanced Catalytic Hydrogenation Activity of Sb/Palygorskite (PAL) Nanoparticles

Tan

Tang

et al. 2017

Nanoscale Res Lett

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A Sb/palygorskite (PAL) composite was synthesized by a facile solvothermal process and applied in catalytic hydrogenation of p-nitrophenol for the first time. It was found that the Sb nanoparticles with the sizes of 2–5 nm were well dispersed on the fiber of PAL, while partial aggregated Sb nanoparticles with sizes smaller than 200 nm were also loaded on the PAL. The Sb/PAL composite with 9.7% Sb mass amounts showed outstanding catalytic performance by raising the p-nitrophenol conversion rate to 88.3% within 5 min, which was attributed to the synergistical effect of Sb and PAL nanoparticles facilitating the adsorption and catalytic hydrogenation of p-nitrophenol.Electronic supplementary materialThe online version of this article (doi:10.1186/s11671-017-2220-8) contains supplementary material, which is available to authorized users.

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Section: Methodsmentioning

confidence: 99%

Preparation and Enhanced Catalytic Hydrogenation Activity of Sb/Palygorskite (PAL) Nanoparticles

Tan

Tang

et al. 2017

Nanoscale Res Lett

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“…From B-and C-film (Figure 1a), it was possible to verify a strong tendency for the formation of rods when the H 2 SeO 3 concentration in the electrolytic bath was increased in relation to the IC. [30] Therefore, we can conclude that it is convenient to maintain the bath with an Sb-rich composition (as the IC-bath). This change in morphology indicates that the concentration of Se in the bath greatly interferes with the film nucleation and growth kinetics.…”

Section: Effect Of the Precursor Concentration In The Electrolytic Bathmentioning

confidence: 99%

“…TANG et al had previously reported similar behaviour in the Se-rich samples when observing microrods from 100 to 300 nm in length obtained by a hydrothermal method using sodium borohydride as reductant. [30] Therefore, we can conclude that it is convenient to maintain the bath with an Sb-rich composition (as the IC-bath).…”

Section: Effect Of the Precursor Concentration In The Electrolytic Bathmentioning

confidence: 99%

“…The band gaps of the films B and C were slightly lower than those observed for the IC-film. This effect could be related with the increase of Se in Sb-antisites (Se Sb ) defects created by the Se-rich environment, [31] which can also explain the lower photocurrent density of the films B and C. According to TANG et al, [30] Se impurities on Sb 2 Se 3 films may create recombination centres, and these have a negative effect on a film's photoelectrocatalytic performance.…”

Section: Effect Of the Precursor Concentration In The Electrolytic Bathmentioning

confidence: 99%

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Electrodeposition Conditions Effect Sb₂Se₃ Thin‐Film Properties

2019

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Sb 2 Se 3 is presented as a promising light absorber material of low-cost and good photoelectrocatalytic activity. Among the different synthetic methods for this semiconductor, electrodeposition has gained attention. In this context, a study of the electrodeposition parameters is an important aspect for obtaining films with optimized photocatalytic characteristics. Thus, in this work, we studied the effect of precursor concentration, the total charge of deposition, the type of supporting electrolyte, bath temperature, and the deposition potential on obtaining antimony selenide thin films electrochemically and on the morphological, structural, and optoelectronic properties of these films. One of the most interesting observations was the huge impact of these parameters on the morphology. The Serich films showed a tendency to have a rod-like morphology and relatively better stability to photocorrosion. The thickness of the film is another parameter that hugely affected the photocatalytic properties. From the evaluation of the photocurrent values presented by the films, the optimized electrodeposition parameters were found.

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“…More and more emerging composites will offer a perspective for new entries into novel structures and high technology applications 15 – 23 . Sb 2 Se 3 , one of a typical 1D nanostructured material in the group V–VI binary semiconductors, has attracted considerable attention due to its unique photovoltaic 24 , electrochemical properties 25 and efficient catalytic performance 26 . The synthesis of Sb 2 Se 3 using facile hydrothermal or solvothermal method has been extensively studied 25 – 29 .…”

Section: Introductionmentioning

confidence: 99%

Sb2Se3 assembling Sb2O3@ attapulgite as an emerging composites for catalytic hydrogenation of p-nitrophenol

Tan

Tang

Zou

et al. 2017

Sci Rep

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The construction and application of a new type of composite material are achieved more and more attention. However, expected Sb 2 Se 3 /attapulgite composites aim to use the low price, and high adsorption of attapulgite in assembling Sb 2 Se 3 is quite difficult to be acquired by a facile and benign environmental hydrothermal method. In this manuscript, we developed a new way for preparation of an emerging composite by means of Sb 2 O 3 as a media linking Sb 2 Se 3 and attapulgite together, and finally won an emerging composite Sb 2 Se 3 /Sb 2 O 3 @attapulgite, which presented an excellent catalytic properties for catalytic hydrogenation of p-nitrophenol. It was noted that the Sb 2 Se 3 /Sb 2 O 3 @ attapulgite composites exhibited a high conversion rate for the hydrogenation of p-nitrophenol that was up to 90.7% within 15 min, which was far more than the 61.5% of Sb 2 Se 3 sample. The excellent catalytic performance was attributed to the highly dispersion Sb 2 Se 3 microbelts and Sb 2 Se 3 @Sb 2 O 3 @ attapulgite rods, which would improve the adsorption of the reactant species and facility electronic transfer process of the catalytic hydrogenation of p-nitrophenol.General one-dimensional (1D) nanomaterials such as carbon nanotubes, metal or semiconducting nanowires and their composites which have been widely applied in catalysis 1-5 , energy conversion and storage devices 6-12 , gas sensors 13, 14 etc. More and more emerging composites will offer a perspective for new entries into novel structures and high technology applications [15][16][17][18][19][20][21][22][23] . Sb 2 Se 3 , one of a typical 1D nanostructured material in the group V-VI binary semiconductors, has attracted considerable attention due to its unique photovoltaic 24 , electrochemical properties 25 and efficient catalytic performance 26 . The synthesis of Sb 2 Se 3 using facile hydrothermal or solvothermal method has been extensively studied [25][26][27][28][29] . A large number of advanced techniques have been developed to fabricate one-dimensional (1D) nanostructured composites with well-controlled morphology and chemical composition. Among these methods, hydrothermal method seems to be the simplest and most versatile technique capable of generating 1D nanostructures (mainly nanorods, nanoflakes) 30,31 . However, application of Sb 2 Se 3 was limited since relatively low catalytic activity of rod-like bulk Sb 2 Se 3 with small specific area and easy aggregation of Sb 2 Se 3 nanoparticles with good property but slightly poor stability. Therefore, one of method for inhibiting aggregation and enhancing stability was to assemble the functional material onto another support material, such as carbon materials 32,33 , metal oxides 34,35 , natural clay mineral 36,37 , and so on. However, the synthesis of Sb 2 Se 3 nanocomposites using facile and benign environment hydrothermal method has not been extensively studied. In particular, in a Sb 2 Se 3 structures unit, (Sb 4 Se 6 ) n ribbons grow along the (001) direction through covalent Sb-Se bonds, while h...

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Morphologic control of Sb-rich Sb₂Se₃ to adjust its catalytic hydrogenation properties for p-nitrophenol

Abstract: Sb-rich Sb2Se3 with hollow sphere morphology is an efficient catalyst for the hydrogenation of p-nitrophenol.

Cited by 12 publications

References 26 publications

Preparation and Enhanced Catalytic Hydrogenation Activity of Sb/Palygorskite (PAL) Nanoparticles

Preparation and Enhanced Catalytic Hydrogenation Activity of Sb/Palygorskite (PAL) Nanoparticles

Electrodeposition Conditions Effect Sb₂Se₃ Thin‐Film Properties

Sb2Se3 assembling Sb2O3@ attapulgite as an emerging composites for catalytic hydrogenation of p-nitrophenol

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Morphologic control of Sb-rich Sb2Se3 to adjust its catalytic hydrogenation properties for p-nitrophenol

Abstract: Sb-rich Sb2Se3 with hollow sphere morphology is an efficient catalyst for the hydrogenation of p-nitrophenol.

Cited by 12 publications

References 26 publications

Preparation and Enhanced Catalytic Hydrogenation Activity of Sb/Palygorskite (PAL) Nanoparticles

Preparation and Enhanced Catalytic Hydrogenation Activity of Sb/Palygorskite (PAL) Nanoparticles

Electrodeposition Conditions Effect Sb2Se3 Thin‐Film Properties

Sb2Se3 assembling Sb2O3@ attapulgite as an emerging composites for catalytic hydrogenation of p-nitrophenol

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Morphologic control of Sb-rich Sb₂Se₃ to adjust its catalytic hydrogenation properties for p-nitrophenol

Electrodeposition Conditions Effect Sb₂Se₃ Thin‐Film Properties