Engineering sulfur-rich MoS2 adsorbent with abundant unsaturated coordination sulfur sites for gaseous mercury capture from high-concentration SO2 smelting flue gas

Chemical Engineering Journal, Год журнала: 2024, Номер 483, С. 149122 - 149122

Опубликована: Фев. 1, 2024

Язык: Английский

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Fluorescence Probe for Detection of Malathion Using Sulfur Quantum Dots@Graphitic‐Carbon Nitride Nanocomposite

Luminescence, Год журнала: 2025, Номер 40(2)

Опубликована: Янв. 31, 2025

ABSTRACT A novel fluorescence‐based sensor has been developed for the sensitive detection of malathion, an organophosphorus pesticide, using sulfur‐doped quantum dots (SQDs) embedded within graphitic carbon nitride (g‐C₃N₄) nanosheets. The SQDs were synthesized through a hydrothermal method, whereas g‐C₃N₄ nanosheets produced via exfoliation process. resulting SQDs@g‐C₃N₄ nanocomposite demonstrated outstanding performance malathion in food samples, exhibiting wide linear range 10–120 μM and exceptionally low limit 0.02 μM. This sensitivity allows accurate rapid pesticide monitoring at trace levels. sensor's was optimized by varying experimental conditions, ensuring that it provided high sensitivity, excellent stability, impressive selectivity toward even complex matrices.

Язык: Английский

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Analysis of XGaO3 (X = Ba and Cs) cubic based perovskite materials for photocatalytic water splitting applications: a DFT study

Heliyon, Год журнала: 2023, Номер 9(3), С. e14112 - e14112

Опубликована: Фев. 26, 2023

Energy conversion has become an important technology for meeting energy production and consumption in the modern era. Water splitting solar cell technologies are projected to close gap between demand consumption. Therefore, XGaO3 (X = Ba Cs) compounds having characteristics i.e., electrical, optical, mechanical, structural depicted by using a density functional theory (DFT) based CASTEP software with ultrasoft pseudo-potential plane-wave Generalized Gradient Approximation Perdew Burke Ernzerhof exchange correlation (GGA-PBE). According findings, all of these have cubic "pm3m" structure space group 221. The CsGaO3 BaGaO3 direct indirect band gaps, respect electronic band-structure recreations. Density states like total (TDOS) partial (PDOS) commend extent localization electrons numerous bands. optical properties explored adjusting dispersion curve/relation theoretical dielectric function (DF) scale corresponding peaks. As result, materials could be used consume light visible zone via photo catalysis. combination can produce effective results, so remarkable potential application sensing water splitting.

Язык: Английский

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First-principles calculations to investigate structural, electronic, elastic and optical properties of radium based cubic fluoro-perovskite materials

Heliyon, Год журнала: 2023, Номер 9(2), С. e13687 - e13687

Опубликована: Фев. 1, 2023

Perovskite materials play a vital role in the field of material science via experimental as well theoretical calculations. Radium semiconductor are considered backbone medical fields. These high technological fields to be used controlling decay ability. In this study, radium-based cubic fluoro-perovskite XRaF3 (where X = Rb and Na) calculated using DFT (density functional theory). compounds nature with 221 space groups that construct on CASTEP (Cambridge-serial-total-energy-package) software ultra-soft PPPW (pseudo-potential plane-wave) GGA (Generalized-Gradient-approximation)-PBE (Perdew-Burke-Ernzerhof) exchange-correlation functional. The structural, optical, electronic, mechanical properties calculated. According structural properties, NaRaF3 RbRaF3 have direct bandgap 3.10eV 4.187eV RbRaF3, respectively. Total density states (DOS) partial (PDOS) provide confirmation degree electrons localized distinct bands. is semiconductors insulator, according electronic results. imaginary element dispersion dielectric function reveals its wide variety energy transparency. both compounds, optical transitions examined by fitting damping ratio for notional scaling appropriate peaks. absorption conductivity compound better than which make it suitable solar cell applications increasing efficiency work function. We observed mechanically stable structure. criteria stability also met estimated elastic potential application medical.The band gap, necessary conditions applications. Here, literature was reviewed check computational translational insight into relationships between novel compounds.

Язык: Английский

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Novel metal sulfide sorbents for elemental mercury capture in flue gas: A review

Fuel, Год журнала: 2023, Номер 357, С. 129829 - 129829

Опубликована: Сен. 19, 2023

Язык: Английский

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On the Bioconvective Aspect of Viscoelastic Micropolar Nanofluid Referring to Variable Thermal Conductivity and Thermo-Diffusion Characteristics

Bioengineering, Год журнала: 2023, Номер 10(1), С. 73 - 73

Опубликована: Янв. 5, 2023

The bioconvective flow of non-Newtonian fluid induced by a stretched surface under the aspects combined magnetic and porous medium effects is main focus current investigation. Unlike traditional aspects, here viscoelastic behavior has been examined combination both micropolar second grade fluid. Further thermophoresis, Brownian motion thermodiffusion along with variable thermal conductivity, have also utilized for boundary process. solution nonlinear fundamental problem figured out via convergent approach Mathematica software. It noted that this model based on theoretical assumptions instead any experimental data. efficiency simulated determined comparing previously reported results. engineering parameters' are computationally evaluated some definite range.

Язык: Английский

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Synergistic effect of graphene nanosheets and copper oxide nanoparticles on mechanical and thermal properties of composites: Experimental and simulation investigations

Materials Science and Engineering B, Год журнала: 2022, Номер 289, С. 116248 - 116248

Опубликована: Дек. 29, 2022

Язык: Английский

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Boosting the HER activity of three-phase a-MoSx/Ni3S2/Ni3N heterojunction via simultaneous structural control and heterointerface engineering

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 161077 - 161077

Опубликована: Фев. 1, 2025

Язык: Английский

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l-Cysteine and silver nitrate based metal sulfide and Zeolite-Y nano adsorbent for efficient removal of mercury (II) ion from wastewater

Applied Surface Science, Год журнала: 2022, Номер 611, С. 155777 - 155777

Опубликована: Ноя. 20, 2022

Язык: Английский

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S-scheme heterojunction CeO2/TiO2 modified by reduced graphene oxide (rGO) as charge transfer route for integrated photothermal catalytic oxidation of Hg0

Fuel, Год журнала: 2023, Номер 343, С. 127973 - 127973

Опубликована: Март 3, 2023

Язык: Английский

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