Controlled preparation of high quality WS<sub>2</sub> nanostructures by a microwave-assisted solvothermal method

Yan, Haiting; Li, Jianhui; Liu, Daomeng; Jing, Xunan; Wang, Daquan; Meng, Lingjie

doi:10.1039/c8ce00057c

Cited by 27 publications

(14 citation statements)

References 45 publications

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“…The microscopic structures of the obtained composites were further investigated using high-resolution transmission electron microscopy (HRTEM), and the results are displayed in Figure 3. Initially, the interlayer spacing of WS 2 nanosheets displayed in the Figure 3a, measured to be 0.616 nm, can be ascribed to the (0 0 2) plane of WS 2 [28]. For the sample with a short partial oxidation time of 5 min, a new lattice fringe with d = 0.375 nm appears beside the interlayer spacing of 0.616 nm according to Figure 3b, ascribed to the characteristic interplane distance of the (020) crystallographic plane of WO 3 .…”

Section: Characterizationsmentioning

confidence: 96%

“…">Synthesis of WS 2 , WS 2 /WO 3 Heterostructures and WO 3The preparation procedures of WS 2 , WS 2 /WO 3 hybrids, and WO 3 are illustrated in Figure 1. The WS 2 microflowers were first synthesized by using a solvothermal method [28]. In general, WCl 6 (0.894 g) was dissolved in NMP (70 mL), and this suspension was stirred for 10 min to obtain a dark brown solution.…”

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confidence: 99%

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Partial Oxidation Strategy to Synthesize WS2/WO3 Heterostructure with Enhanced Adsorption Performance for Organic Dyes: Synthesis, Modelling, and Mechanism

Wang

et al. 2020

Nanomaterials

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In this work, a facile oxidation strategy was developed to prepare novel tungsten disulfide/tungsten trioxide (WS2/WO3) heterostructures for adsorbing organic dyes efficiently by combining the hydrophilic property of WO3 and the superior dye affinity of WS2. The structural and elemental properties of the synthesized hybrid materials were systematically investigated, and the results demonstrated the retained flower-like morphology of the primitive WS2 and the successful introduction of WO3. Furthermore, surface properties such as a superior hydrophilicity and negative-charged potential were also demonstrated by a water contact angle characterization combined with a Zeta potential analysis. The performance of the obtained WS2/WO3 hybrid materials for removing Rhodamine B (RhB) from wastewater was evaluated. The results showed that the maximum adsorption capacity of the newly synthesized material could reach 237.1 mg/g. Besides, the adsorption isotherms were also simulated by a statistical physics monolayer model, which revealed the non-horizontal orientation of adsorbates and endothermic physical interaction. Finally, the adsorption mechanism and the recyclability revealed that the partial oxidation strategy could contribute to a higher adsorption capacity by modulating the surface properties and could be applied as a highly efficient strategy to design other transition metal dichalcogenides (TMDs) heterostructures for removing organic dyes from wastewater.

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Section: Characterizationsmentioning

confidence: 96%

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confidence: 99%

Partial Oxidation Strategy to Synthesize WS2/WO3 Heterostructure with Enhanced Adsorption Performance for Organic Dyes: Synthesis, Modelling, and Mechanism

Wang

et al. 2020

Nanomaterials

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“…In this procedure, the solvothermal product of sodium and ethanol was pyrolyzed, and then single‐layer graphene could be obtained after sonication and clean by water . The fabrication of 2D metal oxides or 2D metal sulfides by hydro/solvothermal reaction was also reported . Wang et al .…”

Section: Synthesis Of 2d Nanomaterialsmentioning

confidence: 99%

Two‐Dimensional Nanomaterials for Photothermal Therapy

2020

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Two‐dimensional (2D) nanomaterials are currently explored as novel photothermal agents because of their ultrathin structure, high specific surface area, and unique optoelectronic properties. In addition to single photothermal therapy (PTT), 2D nanomaterials have demonstrated significant potential in PTT‐based synergistic therapies. In this Minireview, we summarize the recent progress in 2D nanomaterials for enhanced photothermal cancer therapy over the last five years. Their unique optical properties, typical synthesis methods, and surface modification are also covered. Emphasis is placed on their PTT and PTT‐synergized chemotherapy, photodynamic therapy, and immunotherapy. The major challenges of 2D photothermal agents are addressed and the promising prospects are also presented.

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“…To address the limitations of the hydrothermal synthesis of 2D TMDs, microwave, and magnetic field‐assisted hydro/solvothermal methods have been explored. [ 233–235 ] For instance, Yan et al [ 233 ] reported a facile and scalable microwave‐assisted solvothermal method for synthesizing 2D WS 2 nanosheets in N‐methyl‐2‐pyrrolidone (NMP) using tungsten hexachloride and elemental S as the precursors. Microwave heating is the heating of materials caused by a dielectric loss in an electromagnetic field.…”

Section: The Preparation Of 2d Materialsmentioning

confidence: 99%

Scalably Nanomanufactured Atomically Thin Materials‐Based Wearable Health Sensors

Zhang

Jiang

2021

Small Structures

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Wearable multimodal sensors could enable the continuous, non‐invasive, precise monitoring of vital human signals critical for remote health monitoring and telemedicine. Atomically thin materials with intriguing physical characteristics, rich chemistry, and extreme sensitivity to external stimuli are attractive for implementing high‐performance wearable sensors. Despite the increased interest and efforts in 2D materials‐based wearable sensors, reducing the manufacturing and integration costs while improving the product performance remains challenging. Previous review articles provided good coverage discussing the material and device aspects of 2D materials‐based wearable devices. However, few reviews discussed the status quo, prospects, and opportunities for the scalable nanomanufacturing of 2D materials wearable sensors for health monitoring. To fill this gap, the recent advances in 2D materials‐based wearable health sensors are reviewed. The structure design, fabrication processing, the mechanisms of 2D materials‐based wearable health sensors, and their applications for human health monitoring are discussed. More significantly, a systematic discussion of the state‐of‐the‐art and technological gaps for enabling future design and nanomanufacturing of 2D materials wearable health sensors are provided. Finally, the challenges and opportunities associated with the scalable nanomanufacturing of 2D wearable health sensors are discussed.

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Controlled preparation of high quality WS₂ nanostructures by a microwave-assisted solvothermal method

Abstract: WS2 nanomaterials including nanosheets, nanocones and nanoworms were successfully synthesized by a facile and efficient microwave-assisted solvothermal method.

Cited by 27 publications

References 45 publications

Partial Oxidation Strategy to Synthesize WS2/WO3 Heterostructure with Enhanced Adsorption Performance for Organic Dyes: Synthesis, Modelling, and Mechanism

Partial Oxidation Strategy to Synthesize WS2/WO3 Heterostructure with Enhanced Adsorption Performance for Organic Dyes: Synthesis, Modelling, and Mechanism

Two‐Dimensional Nanomaterials for Photothermal Therapy

Scalably Nanomanufactured Atomically Thin Materials‐Based Wearable Health Sensors

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Controlled preparation of high quality WS2 nanostructures by a microwave-assisted solvothermal method

Abstract: WS2 nanomaterials including nanosheets, nanocones and nanoworms were successfully synthesized by a facile and efficient microwave-assisted solvothermal method.

Cited by 27 publications

References 45 publications

Partial Oxidation Strategy to Synthesize WS2/WO3 Heterostructure with Enhanced Adsorption Performance for Organic Dyes: Synthesis, Modelling, and Mechanism

Partial Oxidation Strategy to Synthesize WS2/WO3 Heterostructure with Enhanced Adsorption Performance for Organic Dyes: Synthesis, Modelling, and Mechanism

Two‐Dimensional Nanomaterials for Photothermal Therapy

Scalably Nanomanufactured Atomically Thin Materials‐Based Wearable Health Sensors

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Controlled preparation of high quality WS₂ nanostructures by a microwave-assisted solvothermal method