One-step hydrothermal synthesis of high-percentage 1T-phase MoS2 quantum dots for remarkably enhanced visible-light-driven photocatalytic H2 evolution

Li, Xitao; Lv, Xinding; Li, Nan; Wu, Jiaojiao; Zheng, Yan‐Zhen; Tao, Xia

doi:10.1016/j.apcatb.2018.10.033

Cited by 145 publications

(71 citation statements)

References 64 publications

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“…The catalytic property of 2H MoS 2 relies on the edge sites while 1T benefits from both basal plane and edge sites. Tao and coworkers reported that the 1T MoS 2 quantum dots were synthesized at 180 °C, which have the ultrasmall lateral size of ≈3.3 nm and a yield of 82% . Loading 3 wt% of these 1T MoS 2 quantum dots achieved a high hydrogen production rate of 131.7 mmol h −1 g −1 .…”

Section: Interfacial Activities Of Mos2 For Enhanced Hydrogen Evolutionmentioning

confidence: 99%

“…Loading 3 wt% of these 1T MoS 2 quantum dots achieved a high hydrogen production rate of 131.7 mmol h −1 g −1 . The 1T MoS 2 nanosheets not only possess abundant edge sites and superior electric conductivity but also decrease the conduction band of MoS 2 for efficient electron transfer . Li et al reported the precise control of charge flow by selectively and chemically fitting 1T SL‐MoS 2 on (Bi 12 O 17 ) end‐face of the Bi 12 O 17 C l2 monolayer to construct Janus (Cl 2 )–(Bi 12 O 17 )–(MoS 2 ) bilayer junctions .…”

Section: Interfacial Activities Of Mos2 For Enhanced Hydrogen Evolutionmentioning

confidence: 99%

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A Critical Review on Enhancement of Photocatalytic Hydrogen Production by Molybdenum Disulfide: From Growth to Interfacial Activities

Zhang

Tong

et al. 2019

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Ultrathin 2D molybdenum disulfide (MoS2), which is the flagship of 2D transition‐metal dichalcogenide nanomaterials, has drawn much attention in the last few years. 2D MoS2 has been banked as an alternative to platinum for highly active hydrogen evolution reaction because of its low cost, high surface‐to‐volume ratio, and abundant active sites. However, when MoS2 is used directly as a photocatalyst, contrary to public expectation, it still performs poorly due to lateral size, high recombination ratio of excitons, and low optical cross section. Besides, simply compositing MoS2 as a cocatalyst with other semiconductors cannot satisfy the practical application, which stimulates the pursual of a comprehensive insight into recent advances in synthesis, properties, and enhanced hydrogen production of MoS2. Therefore, in this Review, emphasis is given to synthetic methods, phase transitions, tunable optical properties, and interfacial engineering of 2D MoS2. Abundant ways of band edge tuning, structural modification, and phase transition are addressed, which can generate the neoteric photocatalytic systems. Finally, the main challenges and opportunities with respect to MoS2 being a cocatalyst and coherent light–matter interaction of MoS2 in photocatalytic systems are proposed.

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Section: Interfacial Activities Of Mos2 For Enhanced Hydrogen Evolutionmentioning

confidence: 99%

Section: Interfacial Activities Of Mos2 For Enhanced Hydrogen Evolutionmentioning

confidence: 99%

A Critical Review on Enhancement of Photocatalytic Hydrogen Production by Molybdenum Disulfide: From Growth to Interfacial Activities

Zhang

Tong

et al. 2019

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“…[ 1–4 ] Precious metal catalysts are capable of accelerating HER and OER with negligible overpotentials; however, their cost ineffectiveness and scarce storage restrict large‐scale application for electrocatalysis and photocatalysis. [ 5–8 ] Accordingly, the search of efficient and earth‐abundant catalysts to minimize the dynamic overpotential for electrocatalytic HER/OER and accelerate the migration of photoinduced electrons for photocatalytic water splitting has become the hotspot of catalysis field.…”

Section: Introductionmentioning

confidence: 99%

Large‐Size, Porous, Ultrathin NiCoP Nanosheets for Efficient Electro/Photocatalytic Water Splitting

Yang³

et al. 2020

Adv Funct Materials

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Porous ultrathin 2D catalysts are attracting great attention in the field of electro/photocatalytic hydrogen evolution reaction (HER) and overall water splitting. Herein, a universal pH-controlled wet-chemical strategy is reported followed by thermal and phosphorization treatment to prepare large-size, porous and ultrathin bimetallic phosphide (NiCoP) nanosheets, in which graphene oxide is adopted as a template to determine the size of products. The thickness of the resultant NiCoP nanosheets ranges from 3.5 to 12.8 nm via delicately adjusting pH from 7.8 to 8.5. The thickness-dependent electrocatalytic performance is evidenced experimentally and explained by computational studies. The prepared large-size ultrathin NiCoP nanosheets show excellent bifunctional electrocatalytic activity for overall water splitting, with low overpotentials of 34.3 mV for HER and 245.0 mV for oxygen evolution reaction, respectively, at 10 mA cm −2 . Furthermore, the NiCoP nanosheets exhibit superior photocatalytic HER performance, achieving a high HER rate of 238.2 mmol h −1 g −1 in combination with commonly used photocatalyst CdS, which is far superior to that of Pt/CdS (81.7 mmol h −1 g −1 ). All these results demonstrate large-size porous ultrathin NiCoP nanosheets as an efficient and multifunctional electro/photocatalyst for water splitting.

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“…[13] For example, CdS with narrow bandgap (~2.4 eV) has been well developed for visible-lightdriven photocatalysis, including nanorods, [14] nanoflowers, [15] nanotubes [16] and so on. In addition, MoS 2 nanomaterials (nanosheets, [17] nanoparticles, [18] nanotubes, [19] etc) can also be used as effective photocatalysts, due to wide-spectrum response, large specific surface area and quantum confinement effects. [20][21][22] However, single component sulfide semiconductors show high electron-hole recombination, leading to unsatisfactory photodegradation activities.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of MoS₂/CdS Heterostructures on Carbon‐Fiber Cloth as Filter‐Membrane‐Shaped Photocatalyst for Purifying the Flowing Wastewater under Visible‐Light Illumination

et al. 2019

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The development of effective, visible‐light‐drivable and reusable photocatalysts has drawn great attention for purifying the flowing wastewater. Herein, we have designed and prepared MoS2/CdS heterostructures on carbon fiber (CF) cloth as a novel filter‐membrane‐shaped photocatalyst. With CF cloth as the substrate, the growth of MoS2 nanosheets (thickness: ∼20 nm) and CdS nanoparticles (∼5 nm) have been achieved by using a hydrothermal‐chemical bath deposition two‐step route. CF/MoS2/CdS cloth shows a strong and wide photoabsorption accompanied by a small peak with an edge around 700 nm. Under visible‐light irradiation, CF/MoS2/CdS cloth (area: 4×4 cm2) can expeditiously remove 97.3 % rhodamine B, 55.6 % tetracycline hydrochloride and 68.4 % hexavalent chromium after 100 min, and 97.3 % methylene blue after 70 min. In particular, when CF/MoS2/CdS cloth (diameter: ∼10 cm) is used as a filter‐membrane to photocatalytically degrade the flowing wastewater (10 mg L−1 RhB, rate: ∼1 L h−1), 92.6 % RhB can be eliminated in eight grading pools. Therefore, CF/MoS2/CdS cloth has the capacity to be a recyclable photocatalyst with high efficiency for purifying the flowing wastewater.

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One-step hydrothermal synthesis of high-percentage 1T-phase MoS2 quantum dots for remarkably enhanced visible-light-driven photocatalytic H2 evolution

Cited by 145 publications

References 64 publications

A Critical Review on Enhancement of Photocatalytic Hydrogen Production by Molybdenum Disulfide: From Growth to Interfacial Activities

A Critical Review on Enhancement of Photocatalytic Hydrogen Production by Molybdenum Disulfide: From Growth to Interfacial Activities

Large‐Size, Porous, Ultrathin NiCoP Nanosheets for Efficient Electro/Photocatalytic Water Splitting

Synthesis of MoS₂/CdS Heterostructures on Carbon‐Fiber Cloth as Filter‐Membrane‐Shaped Photocatalyst for Purifying the Flowing Wastewater under Visible‐Light Illumination

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One-step hydrothermal synthesis of high-percentage 1T-phase MoS2 quantum dots for remarkably enhanced visible-light-driven photocatalytic H2 evolution

Cited by 145 publications

References 64 publications

A Critical Review on Enhancement of Photocatalytic Hydrogen Production by Molybdenum Disulfide: From Growth to Interfacial Activities

A Critical Review on Enhancement of Photocatalytic Hydrogen Production by Molybdenum Disulfide: From Growth to Interfacial Activities

Large‐Size, Porous, Ultrathin NiCoP Nanosheets for Efficient Electro/Photocatalytic Water Splitting

Synthesis of MoS2/CdS Heterostructures on Carbon‐Fiber Cloth as Filter‐Membrane‐Shaped Photocatalyst for Purifying the Flowing Wastewater under Visible‐Light Illumination

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Synthesis of MoS₂/CdS Heterostructures on Carbon‐Fiber Cloth as Filter‐Membrane‐Shaped Photocatalyst for Purifying the Flowing Wastewater under Visible‐Light Illumination