4.5 Article

MoS2 nanoparticles and h-BN nanosheets from direct exfoliation of bulk powder: one-step synthesis method

期刊

MATERIALS RESEARCH EXPRESS
卷 1, 期 3, 页码 -

出版社

IOP PUBLISHING LTD
DOI: 10.1088/2053-1591/1/3/035038

关键词

MoS2; h-BN; nanoparticles; nanosheets; optical properties

资金

  1. Department of Science and Technology (Government of India) [Sr/S2/RJN-130/2012]
  2. NCL-MLP project [028626]
  3. DST-SERB Fast-track Young scientist project [SB/FT/CS-116/2013]
  4. INUP IITB project - DeitY, MCIT, Government of India

向作者/读者索取更多资源

We report facile synthesis of MoS2 nanoparticles and h-BN nanosheets using ultrasonication method in suitable solvents such as N-Methyl-2-pyrrolidone and ethylene glycol, respectively. The average size of MoS2 nanoparticles observed from TEM analysis were 4-5 nm and about a few hundreds of nm for h-BN nanosheets. Raman spectroscopy carried out on nanoparticle samples confirms the formation of MoS2 nanoparticles and h-BN nanosheets. UV-vis absorption and photoluminescence (PL) measurements carried out on the products show typical absorption and luminescence spectra of MoS2 and h-BN. Further, we attempted to decorate gold nanoparticles on nanosheets of MoS2 and h-BN which show subsequent change in Raman spectra due to charge transfer interaction.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.5
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

Article Chemistry, Physical

Photosensitive WS2/ZnO Nano-Heterostructure-Based Electrocatalysts for Hydrogen Evolution Reaction

Pratik M. Pataniya, Dattatray Late, C. K. Sumesh

Summary: This study presents WS2/ZnO (WZO) nano-heterostructures with optimized materials properties for high-performance photoelectrocatalytic activity, showing faster hydrogen evolution reaction (HER) compared to pristine WS2 and ZnO. The catalyst has stable HER activity for chrono-amperometry of 25 h and cyclic voltammetry of 2000 cycles, demonstrating visible light-sensitive catalytic activity with significantly reduced over potential. Additionally, the research reports a self-powered and fast photodetection ability with a responsivity of 6.7 mA/W and a maximum photoresponsivity of 1.34 A/W.

ACS APPLIED ENERGY MATERIALS (2021)

Article Chemistry, Multidisciplinary

Theoretical investigation on the adsorption of melamine in Al12/B12-N12/P12 fullerene-like nanocages: a platform for ultrasensitive detection of melamine

Jamelah S. Al-Otaibi, Y. Sheena Mary, Y. Shyma Mary, Ravi Trivedi, Brahmananda Chakraborty

Summary: Surface-enhanced Raman scattering is used to enhance the Raman signal of biomolecules with nanosized metal substrates. Nanomaterials like nanocages and nanoclusters have various applications in sensing materials and medical devices. Quantum chemical calculations were used to study the sensing parameters of melamine adsorbed on Al12/B12-N12/P12 nanocages, showing charge transfer and enhanced second hyperpolarizability.

CHEMICAL PAPERS (2022)

Article Chemistry, Physical

Polaron assisted electrical transport and fertile field emission response in polycrystalline LiNi0.33Co0.33Mn0.33O2 with theoretical insight by density functional theory

Subrata Karmakar, Pratap Mane, Chetan D. Mistari, Mahendra A. More, Brahmananda Chakraborty, Dhrubananda Behera

Summary: Polycrystalline LiCo0.33Ni0.33Mn0.33O2 compounds were synthesized and studied for their conduction mechanism and field emission properties. Various techniques were used to analyze the structural and electronic properties, revealing the creation of polarons and localized states in high temperatures. The material exhibited a colossal dielectric permittivity and excellent field emission characteristics, showing potential for practical applications.

JOURNAL OF ALLOYS AND COMPOUNDS (2022)

Article Chemistry, Physical

Scandium decorated C24 fullerene as high capacity reversible hydrogen storage material: Insights from density functional theory simulations

Vikram Mahamiya, Alok Shukla, Brahmananda Chakraborty

Summary: Scandium decorated C-24 fullerene can adsorb up to six hydrogen molecules with an average adsorption energy of -0.35 eV per H-2, making it a promising high-capacity hydrogen storage device.

APPLIED SURFACE SCIENCE (2022)

Article Chemistry, Physical

Compression tuned crystalline and amorphous phases of Gd2Si2O7: Raman spectroscopic and first-principles studies

Swayam Kesari, Brahmananda Chakraborty, A. K. Rajarajan, Antara Vaidyanathan, Rekha Rao

Summary: Compounds with polymorphism at ambient conditions exhibit interesting structural transitions under different thermodynamic conditions. Gd2Si2O7 is a silicate that shows polymorphism at ambient conditions, with significant structural changes at high pressures leading to different phases.

JOURNAL OF ALLOYS AND COMPOUNDS (2022)

Article Biochemistry & Molecular Biology

Theoretical model study of adsorbed antimalarial-graphene dimers: doping effects, photophysical parameters, intermolecular interactions, edge adsorption, and SERS

Zakir Ullah, Prasad M. Sonawane, Y. Sheena Mary, Y. Shyma Mary, Pratap Mane, Brahmananda Chakraborty, David G. Churchill

Summary: The discovery and application of new optical techniques are essential for future diagnostics and therapy applications, such as predicting features in surface-enhanced Raman spectroscopy and drug delivery, highlighting the importance of studying chromophore-chromophore interactions.

JOURNAL OF BIOMOLECULAR STRUCTURE & DYNAMICS (2022)

Article Engineering, Electrical & Electronic

PVA-coated miniaturized flexible fiber optic sensor for acetone detection: a prospective study for non-invasive diabetes diagnosis

Ajay Kumar, Dnyandeo Pawar, Dattatray J. Late, Rajesh Kanawade

Summary: This study proposes and investigates a Fabry-Perot Interferometer-based polyvinyl alcohol-coated sensor platform for non-invasive detection of acetone vapor at room temperature, for the prospective study of diabetes diagnosis. The sensor is simple, miniaturized, flexible, cost-effective, and highly sensitive for low acetone vapor concentration detection.

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS (2022)

Article Chemistry, Physical

Promising 2D/2D MoTe2/Ti3C2Tx Hybrid Materials for Boosted Hydrogen Evolution Reaction

Pratik Shinde, Pratap Mane, Dattatray J. Late, Brahmananda Chakraborty, Chandra Sekhar Rout

Summary: Hydrogen generation through water splitting is considered efficient in creating high-purity hydrogen. Two-dimensional materials have shown to be efficient electrocatalysts for the hydrogen evolution reaction.

ACS APPLIED ENERGY MATERIALS (2021)

Review Chemistry, Analytical

Recent Developments and Future Perspective on Electrochemical Glucose Sensors Based on 2D Materials

Sithara Radhakrishnan, Seetha Lakshmy, Shilpa Santhosh, Nandakumar Kalarikkal, Brahmananda Chakraborty, Chandra Sekhar Rout

Summary: This review article discusses the application of enzymatic and nonenzymatic glucose sensors made from 2D materials. It explores the construction of sensors, their usage, and various tuning approaches for improving sensor performance. The article also looks into the future plans for wearable and flexible electrochemical glucose sensors based on 2D materials.

BIOSENSORS-BASEL (2022)

Editorial Material Chemistry, Physical

Theoretical and experimental insight into nano-optoelectronics

Dattatray J. Late, Steffen Duhm

ELECTRONIC STRUCTURE (2022)

Article Chemistry, Physical

Post-Ammonia-Treated V2CTX MXene at Different Pressures: Effects on Morphology, Electronic, and Optical Properties

Monidipa Pramanik, Mukta V. V. Limaye, Mahendra S. Pawar, Dattatray J. Late, Shashi B. Singh

Summary: In this study, vanadium carbide (V(2C)Tx) MXene was successfully synthesized and treated with an ammonia solution under different pressures using a hydrothermal process. The results show that the morphology of V(2)CTx MXene changed from uneven multilayered micrometre-size sheets to uniform few-layered nanometer-size sheets as the pressure increased. The optical and electronic properties were influenced by nitrogen-related defects, quantum confinement, and induced lattice strain due to the post-ammonia treatment.

JOURNAL OF PHYSICAL CHEMISTRY C (2023)

Article Chemistry, Analytical

Defect-Engineering of 2D Dichalcogenide VSe2 to Enhance Ammonia Sensing: Acumens from DFT Calculations

Gopal Sanyal, Surinder Pal Kaur, Chandra Sekhar Rout, Brahmananda Chakraborty

Summary: This study presents a theoretical analysis on the improvement of NH3 detection efficiency using layered vanadium di-selenide (VSe2) with the introduction of point defects. It is found that the adsorption energy of VSe2 can be significantly increased by introducing Se vacancies, making it an efficient NH3 sensor.

BIOSENSORS-BASEL (2023)

Article Engineering, Electrical & Electronic

ZnS-rGO nanocomposite: an efficient sun light driven photocatalyst for degradation of methylene blue

Prashant H. Shinde, Yogita Padwal, Sanjeewani R. Bansode, Ratna Chauhan, Shrikant Charhate, Rishi B. Sharma, Hassan Fouad, Chiaki Terashima, Suresh W. Gosavi, Dattatray J. Late

Summary: The zinc sulphide-reduced graphene oxide nanocomposite has been synthesized and investigated for its potential use in photocatalysis for dye degradation. The combination of ZnS and rGO results in enhanced photocatalytic properties, with rGO acting as a support for ZnS nanoparticles and preventing their agglomeration.

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS (2023)

Article Engineering, Electrical & Electronic

ZnS-MoS2 nano-heterostructure: efficient photocatalyst for dye removal under sunlight

Prashant H. Shinde, Yogita Padwal, Yogesh Waghadkar, Hassan Fouad, Chiaki Terashima, Ratna Chauhan, Shrikant Charhate, Muthupandian Ashokkumar, Suresh W. Gosavi, Dattatray J. Late

Summary: We have successfully synthesized ZnS-MoS2 nano-heterostructure via hydrothermal method and studied its photocatalytic activity under sunlight. The nano-heterostructure exhibited efficient charge separation and extended light absorption, leading to the generation of electron-hole pairs for the degradation of MB dye molecules. The optimized ZnS-MoS2 sample synthesized at 48 h showed excellent performance with 97% degradation in 30 min, attributed to enhanced crystallinity, good charge carrier ability, optimal heterojunction formation, and well-defined morphology with reduced defects.

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS (2023)

Article Chemistry, Multidisciplinary

Copper(ii) and cobalt(iii) Schiff base complexes with hydroxy anchors as sensitizers in dye-sensitized solar cells (DSSCs)

Chiteri Gautam, Devyani Srivastava, Gabriele Kociok-Kohn, Suresh W. Gosavi, Vinod K. Sharma, Ratna Chauhan, Dattatray J. Late, Abhinav Kumar, Mohd. Muddassir

Summary: Two Schiff base complexes, [CuL2] (Cu-Sal) and [CoL3] (Co-Sal), were synthesized and characterized. Crystal structure analysis showed a square planar geometry around Cu(ii) and various intermolecular non-covalent interactions in Cu-Sal. Both complexes were used as sensitizers in TiO2 based dye sensitized solar cells (DSSCs), and Co-Sal exhibited better photovoltaic performance than Cu-Sal due to improved light absorption and dye loading.

RSC ADVANCES (2023)

暂无数据