One-pot synthesis of belt-like Bi2S3/BiOCl hierarchical composites with enhanced visible light photocatalytic activity

Mi, Yuwei; Li, Haiping; Zhang, Yongfang; Zhang, Renjie

doi:10.1016/j.apsusc.2017.06.324

Cited by 69 publications

(24 citation statements)

References 59 publications

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“…The high‐resolution TEM (HRTEM) images (Figure 1e,f) present four different types of lattice fringes. The distances of respective lattice fringes are measured to be about 0.376, 0.595, 0.335, and 0.352 nm, which are well matched to the (120) plane of Bi 2 S 3 , [ 50 ] (002) facet of MoS 2 , [ 51 ] (100) facet of hexagonal CdS, [ 52 ] and (101) plane of the anatase TiO 2 , [ 53 ] respectively. The HRTEM results indicate that these lattice fringes are well‐interfaced with one another with high crystallinity, which can significantly enhance structural stability.…”

Section: Resultsmentioning

confidence: 90%

A High Catalytic Activity Photocatalysts Based on Porous Metal Sulfides/TiO₂ Heterostructures

Qian

Wang

et al. 2020

Adv Materials Inter

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Porous metal sulfides/TiO2 (P‐MST) photocatalysts are successfully prepared via a low‐cost strategy. It is found that the P‐MST possesses a high crystallinity with average pore size of ≈500 nm, which greatly enhances the structural stability as well as catalytic activity. The catalytic properties of the P‐MST are examined by monitoring the degradation of rhodamine B (RhB) under visible‐light irradiation. Particularly, the optimized 7% Bi2S3–CdS–MoS2–TiO2 heterostructures exhibit a remarkable catalytic performance (i.e., the degradation of RhB of ≈98.9%) and long‐term cyclic stability (i.e., the catalytic activity of ≈91.7% even after 30 cyclic test), compared with that of other P‐MST heterostructures. The exceptional catalytic performance may be ascribed to the following benefits: i) the porous structure supplies ample carrier charge transfer channels and lots of surface reaction sites; and ii) the suitable amount of metal sulfides grown on TiO2 have contributed to significant improvement of the electrical conductivity and the light absorption capability.

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Section: Resultsmentioning

confidence: 90%

A High Catalytic Activity Photocatalysts Based on Porous Metal Sulfides/TiO₂ Heterostructures

Qian

Wang

et al. 2020

Adv Materials Inter

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“…Furthermore, In 2 S 3 shows property of high photosensitivity and photoconductivity, stable chemical and physical characteristics, and low toxicity; it has great potential for visible-light-driven photodegradation of pollutants [ 9 , 10 ]. Realistically, the narrow band gap and the rapid recombination of photogenerated electron-hole pairs causing poor quantum yield are similar to other visible light photocatalysts [ 11 – 14 ]. To meet the practical application requirements, it is urgent and important to enhance the photocatalytic efficiency of In 2 S 3 .…”

Section: Introductionmentioning

confidence: 80%

Facile Synthesis of Indium Sulfide/Flexible Electrospun Carbon Nanofiber for Enhanced Photocatalytic Efficiency and Its Application

Liu

Dong

et al. 2017

Scanning

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Heterojunction system has been proved as one of the best architectures for photocatalyst owing to extending specific surface area, expanding spectral response range, and increasing photoinduced charges generation, separation, and transmission, which can provide better light absorption range and higher reaction site. In this paper, Indium Sulfide/Flexible Electrospun Carbon Nanofiber (In2S3/CNF) heterogeneous systems were synthesized by a facile one-pot hydrothermal method. The results from characterizations of SEM, TEM, XRD, Raman, and UV-visible diffuse reflectance spectroscopy displayed that flower-like In2S3 was deposited on the hair-like CNF template, forming a one-dimensional nanofibrous network heterojunction photocatalyst. And the newly prepared In2S3/CNF photocatalysts exhibit greatly enhanced photocatalytic activity compared to pure In2S3. In addition, the formation mechanism of the one-dimensional heterojunction In2S3/CNF photocatalyst is discussed and a promising approach to degrade Rhodamine B (RB) in the photocatalytic process is processed.

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“…The O 1s spectra presented in Figure 14C are best fitted with two peaks located at 530.1 and 531.4 eV. The former peak corresponds to Bi-O species and the latter is attributed to surface hydroxyls respectively [52]. From the XPS analysis results, it can be easily concluded that H2O2 treatment had a negative effect on the bismuthinite surface due to the formation of oxidation products that precipitate on the bismuthinite surface and alter its surface hydrophobicity.…”

Section: Xps Analysismentioning

confidence: 90%

Effect of H2O2 on the Separation of Mo-Bi-Containing Ore by Flotation

Lin

Sun

et al. 2018

Minerals

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Hydrogen peroxide (H2O2) is a strong oxidizer that causes non-selective oxidation of sulfide minerals, and its influence on bismuth sulfide ores is not well-documented. In this study, H2O2 was proposed as an alternative bismuthinite depressant, and its effect on a Mo-Bi-containing ore was intensively investigated by batch flotation tests. Results showed that the addition of H2O2 significantly destabilized the froth phase, thus decreasing the solids and water recovery. The recovery of bismuth in molybdenum concentrate was dramatically decreased to 4.64% by H2O2 compared with that in the absence of H2O2 (i.e., 50.14%). The modified first-order kinetic model demonstrated that the flotation rate of molybdenite slightly declined after H2O2 addition, whereas that of bismuthinite was drastically reduced from 0.30 min−1 to 0.08 min−1 under the same condition. Simulation revealed that H2O2 affected the floatability of both molybdenite and bismuthinite but resulted in more detrimental effect to bismuthinite. Hence, H2O2 has the potential to act as an effective depressant in bismuth sulfide ore flotation.

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One-pot synthesis of belt-like Bi2S3/BiOCl hierarchical composites with enhanced visible light photocatalytic activity

Cited by 69 publications

References 59 publications

A High Catalytic Activity Photocatalysts Based on Porous Metal Sulfides/TiO₂ Heterostructures

A High Catalytic Activity Photocatalysts Based on Porous Metal Sulfides/TiO₂ Heterostructures

Facile Synthesis of Indium Sulfide/Flexible Electrospun Carbon Nanofiber for Enhanced Photocatalytic Efficiency and Its Application

Effect of H2O2 on the Separation of Mo-Bi-Containing Ore by Flotation

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One-pot synthesis of belt-like Bi2S3/BiOCl hierarchical composites with enhanced visible light photocatalytic activity

Cited by 69 publications

References 59 publications

A High Catalytic Activity Photocatalysts Based on Porous Metal Sulfides/TiO2 Heterostructures

A High Catalytic Activity Photocatalysts Based on Porous Metal Sulfides/TiO2 Heterostructures

Facile Synthesis of Indium Sulfide/Flexible Electrospun Carbon Nanofiber for Enhanced Photocatalytic Efficiency and Its Application

Effect of H2O2 on the Separation of Mo-Bi-Containing Ore by Flotation

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A High Catalytic Activity Photocatalysts Based on Porous Metal Sulfides/TiO₂ Heterostructures

A High Catalytic Activity Photocatalysts Based on Porous Metal Sulfides/TiO₂ Heterostructures