MnS coupled with ultrathin MoS2 nanolayers as heterojunction photocatalyst for high photocatalytic and photoelectrochemical activities

Chen, Xuan; Zhang, Jun; Zeng, Jinghui; Shi, Yuxuan; Lin, Song-Yun; Huang, Guozhou; Wang, Hongbo; Kong, Zhe; Xi, Junhua; Ji, Zhenguo

doi:10.1016/j.jallcom.2018.08.319

Cited by 72 publications

(34 citation statements)

References 42 publications

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“…It is wealth to notice that in the photoelectrochemical results, MS displays a better performance than FS. 19 However, as the VB of MoSe 2 and FeSe 2 is very nearly (0.94 and 0.93 eV for MoSe 2 and FeSe 2 , respectively), photogenerated holes will not transfer between the two semiconductors to avoid carriers' recombination. These two results are not contradiction.…”

Section: Photocatalytic and Photoelectrochemical Resultsmentioning

confidence: 99%

“…29-0914). 19,20 The chemical reaction equation for obtaining MoSe 2 and FeSe 2 can be ascribed to be the following: The photocurrent density is the second cycle of the photocurrent response in an electrolyte (μA/cm 2 ). However, compared with the standard spectrogram, the relative strength of the peaks of MS is different.…”

Section: Microstructure and Morphologymentioning

confidence: 99%

“…As the grain size of MoSe 2 in MS and composites is similar, the slightly decline of crystallinity of composites can be ascribed to the surface covered by FeSe 2 instead of lattice defect that will not weaken the photocatalytic performance. 19,20 The chemical reaction equation for obtaining MoSe 2 and FeSe 2 can be ascribed to be the following: The photocurrent density is the second cycle of the photocurrent response in an electrolyte (μA/cm 2 ).…”

Section: Microstructure and Morphologymentioning

confidence: 99%

“…The combustion product is water and free of pollution. [16][17][18][19][20][21][22][23][24][25][26][27][28] Compared with metal sulfides, metallic selenides have narrower bandgap and higher carrier mobility, but they are rarely studied. 1 In the process of photoelectrochemical hydrogen production, the most important is the choice of photocatalysts.…”

Section: Introductionmentioning

confidence: 99%

“…15 Among them, metal sulfides such as SnS 2 , MoS 2 , MnS, In 2 S 3 , and ZnS have narrow bandgap and high carrier mobility, and their photoelectrochemical properties are obviously better than those of metal oxides. [16][17][18][19][20][21][22][23][24][25][26][27][28] Compared with metal sulfides, metallic selenides have narrower bandgap and higher carrier mobility, but they are rarely studied. MoSe 2 is a two-dimensional material with a bandgap of only 1.7 eV, capable of absorbing sunlight at all UV-visible wavelengths.…”

Section: Introductionmentioning

confidence: 99%

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Constructing 1D/2D heterojunction photocatalyst from FeSe ₂ nanorods and MoSe ₂ nanoplates with high photocatalytic and photoelectrochemical performance

et al. 2019

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Although the traditional metal oxide catalyst has high activity and strong degradation ability, the forbidden bandgap is generally larger, and the utilization rate of sunlight is much low. Moreover, the high internal resistance inhibits carrier transfer, so the photoelectrochemical performance needs to be improved. Selenides with narrow bandgap and low internal resistance are promising candidates for photocatalysts. A new type of 1D/2D selenide heterojunction was constructed by compositing MoSe 2 and FeSe 2 , two kinds of narrow bandgap metal selenides. In this 1D/2D heterojunction, MoSe 2 presents a three-dimensional network structure, which can effectively collect and transport optical carriers, and it is an ideal heterostructure as a substrate loaded with 1D FeSe 2 nanorods. Moreover, this heterojunction has good light absorption characteristics and can achieve full spectrum absorption of ultraviolet and visible light. This FeSe 2 /MoSe 2 composite has photocatalytic performance more than 3.4 times that of MoSe 2 , and its photoelectrochemical performance is more than 2 times. The experimental results show that FeSe 2 / MoSe 2 is an ideal composite system with great potential in photocatalysis.

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Section: Photocatalytic and Photoelectrochemical Resultsmentioning

confidence: 99%

Section: Microstructure and Morphologymentioning

confidence: 99%

Section: Microstructure and Morphologymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Constructing 1D/2D heterojunction photocatalyst from FeSe ₂ nanorods and MoSe ₂ nanoplates with high photocatalytic and photoelectrochemical performance

et al. 2019

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One‐Pot Hydrothermal Synthesis of Core–Shell MnS@MoS₂ Heterojunction for Enhanced Microwave Absorption

Tian

Wang

Wang³

et al. 2023

Adv Eng Mater

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Facile Hydrothermal Synthesis of Visible‐Light‐Driven MnS/rGO Nanocomposite for Photocatalytic Degradation of Methylene Blue Dye

Saleem

Alharbi

Ashiq

et al. 2023

Physica Status Solidi (a)

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The ever-increasing pollution and environmental crisis are causing threats to aquatic life and safe and pollution-free water for human needs. This pollution has significant sources, such as industrial waste and other materials disposed of directly or indirectly into water sources that cause pollution. The major part of these wastes is the organic dyes used in many industries such as textile, food, paints, pharmaceuticals, and paper. [1,2] Around 700 000 dyes are produced yearly worldwide and most of them are directly released into canals and other water bodies, causing health issues like diarrhea, skin irritation, breathing problems, and cancer. [3][4][5][6] The dyes are very attractive to human eyes and have a wide variety of uses commercially, but opposite to this, these are very hazardous to life. These dyes are toxic, carcinogenic, and affect the photosynthesis process by coloring the water, inhibiting light penetration, and ultimately disturbing photosynthesis and the primary source of food production in plants, both on land and water. But mostly, the water bodies are heavily affected as fatalities occur and many other diseases are introduced. This proposes a challenge for scientists to resolve this issue to minimize the wastewater pollution coming from industries. [7] Many techniques have been developed to overcome these lifethreatening issues, like photolytic oxidation-reduction, adsorption, photolysis, coagulation, aerobic and anaerobic degradation (biodegradation, i.e., by bacteria), filtration, biosorption, and ion exchange method. [8,9] But all these have limitations and produce secondary pollutants and other contaminants. These methods

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MnS coupled with ultrathin MoS2 nanolayers as heterojunction photocatalyst for high photocatalytic and photoelectrochemical activities

Cited by 72 publications

References 42 publications

Constructing 1D/2D heterojunction photocatalyst from FeSe ₂ nanorods and MoSe ₂ nanoplates with high photocatalytic and photoelectrochemical performance

Constructing 1D/2D heterojunction photocatalyst from FeSe ₂ nanorods and MoSe ₂ nanoplates with high photocatalytic and photoelectrochemical performance

One‐Pot Hydrothermal Synthesis of Core–Shell MnS@MoS₂ Heterojunction for Enhanced Microwave Absorption

Facile Hydrothermal Synthesis of Visible‐Light‐Driven MnS/rGO Nanocomposite for Photocatalytic Degradation of Methylene Blue Dye

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MnS coupled with ultrathin MoS2 nanolayers as heterojunction photocatalyst for high photocatalytic and photoelectrochemical activities

Cited by 72 publications

References 42 publications

Constructing 1D/2D heterojunction photocatalyst from FeSe 2 nanorods and MoSe 2 nanoplates with high photocatalytic and photoelectrochemical performance

Constructing 1D/2D heterojunction photocatalyst from FeSe 2 nanorods and MoSe 2 nanoplates with high photocatalytic and photoelectrochemical performance

One‐Pot Hydrothermal Synthesis of Core–Shell MnS@MoS2 Heterojunction for Enhanced Microwave Absorption

Facile Hydrothermal Synthesis of Visible‐Light‐Driven MnS/rGO Nanocomposite for Photocatalytic Degradation of Methylene Blue Dye

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Constructing 1D/2D heterojunction photocatalyst from FeSe ₂ nanorods and MoSe ₂ nanoplates with high photocatalytic and photoelectrochemical performance

Constructing 1D/2D heterojunction photocatalyst from FeSe ₂ nanorods and MoSe ₂ nanoplates with high photocatalytic and photoelectrochemical performance

One‐Pot Hydrothermal Synthesis of Core–Shell MnS@MoS₂ Heterojunction for Enhanced Microwave Absorption