Publications

An MnO₂–Ti₃C₂T_x MXene nanohybrid: an efficient and durable electrocatalyst toward artificial N₂ fixation to NH₃ under ambient conditions

The MnO₂–Ti₃C₂T_x MXene nanohybrid is efficient for ambient electrocatalytic N₂-to-NH₃ fixation with an NH₃ yield of 34.12 μg h⁻¹ mg_cat⁻¹ and a faradaic efficiency of 11.39%.

Impact of anchoring groups for improving the binding nature of organic dyes toward high efficient dye sensitized solar cells

Green Synthesis, Characterization, Antibacterial Activity of Heterocyclic Compounds from Chalcone on Basis of in vitro and Quantum Chemistry Calculation

Room temperature preparation of lignocellulosic biomass supported heterostructure (Cu+Co@OPF) as highly efficient multifunctional nanocatalyst using wetness co-impregnation

(2Z)-3-(3,4-Dimethoxyphenyl)-2-(4-methylphenyl)acrylonitrile

(2Z)-3-(3,4-dimethoxyphenyl)-2-(4-methylphenyl)acrylonitrile (3) was prepared by Knoevenagel condensation of 3,4-dimethoxybenzaldehyde (1) and 4-methylphenylacetonitrile (2) in ethanol using KOH as a base [1,2].[...]

Development, Characterization and Electromechanical Actuation Behavior of Ionic Polymer Metal Composite Actuator based on Sulfonated Poly(1,4-phenylene ether-ether-sulfone)/Carbon Nanotubes

This paper presents the development of new cost-effective hybrid-type sulfonated poly(1,4-phenylene ether-ether-sulfone) (SPEES) and functionalized single-walled carbon nanotubes (SWNT) based actuators produced by the film-casting method followed by chemical reduction of Pt ions as electrodes. The preparation of SPEES was investigated in details and sulfonation of polymer was characterized by ion exchange capacity (IEC), Fourier-transform infrared (FTIR) and degree of sulfonation measurements. SPEES having degree of sulfonation of 126% was blended with SWNT and used to fabricate IPMC actuator. The chemical composition and detailed structure of SPEES-SWNT ionic polymer membranes were confirmed by FTIR, EDX and transmittance electron microscopy (TEM) analysis. Scanning electron microscopy (SEM) micrographs revealed the homogeneously distributed layers of Pt electrodes on the surfaces of IPMC membrane. The electrochemical and electromechanical properties of SPEES-SWNT-Pt-based IPMC actuator shows a better actuation performance than conventional IPMC actuators in terms of higher IEC, Proton conductivity, higher current density, electrochemical impedance spectroscopy (EIS), and large bending deflection. The robust, flexible and mechanically strong membranes prepared by the synergistic combination of SPEES and SWNT may have considerable potential as actuator materials for robotic and biomimetic applications.

Nanocomposites‐based nitrated polyethersulfone and doped ZnYNiO for selective As³⁺ sensor application

Abstract The contamination of arsenic (As 3+ ) cation in drinking water is one of the most well‐known sources for human arsenic poison. Due to its high toxicity to human, there is a need to develop an efficient and low‐cost method to detect it in aquatic environment. A sensor of nitrated polyethersulfone (PES‐NO 2 ) doped with ZnYNiO nanocomposites was successfully fabricated. PES‐NO 2 was synthesized in this study using H 2 SO 4 : HNO 3 while ZnYNiO nanoparticles were fabricated using wet‐chemical technique under low temperature and basic condition. The results of Fourier transform infrared spectroscopy (FT‐IR) and X‐ray diffraction (XRD) analysis did confirm the interactions between the doped nanoparticles and nitro functions grafted on PES backbone. The developed polymeric nanocomposite (PES‐NO 2 ‐ZnYNiO) was then used as a superb coating sensor for As 3+ . The working electrode of desire heavy metal ion sensor was fabricated by glassy carbon electrode (GCE) coated with PES‐NO 2 ‐ZnYNiO nanocomposites as layer of thin film. To estimate the cationic sensor performances, a calibration curve obtained from current versus electrolyte (selective As 3+ ion) concentration relation was plotted. The linearity of calibration curve is found over the linear dynamic range (LDR) of 0.1 nM~0.1 mM. The slope of calibration curve is used to measure the sensitivity and detection limit (DL) of As 3+ cation sensor, and these are 9.8101 μA μM −1 cm −2 and 96.77 ± 4.84 pM, respectively. Therefore, the As 3+ ion sensor is found as selective with good sensitivity, reproducible with high accuracy, validated in real environmental samples, long‐term stability in aqueous medium, and highly active with short response time.

Assessment of mixed micellization behavior of amitriptyline hydrochloride and TX-165 surfactant mixture in various media (aqueous/NaCl/urea)

Optical solitons in magneto-optic waveguides for the concatenation model

The current paper focuses on the retrieval of solitons in magneto-optic waveguides for the concatenation model having Kerr law of nonlinear refractive index.The simplest equation approach as well as the extended simplest equation method collectively reveal a full spectrum of soliton solutions to the model.The parameter constraints guarantee the existence of such solitons.

Perovskite’s potential functionality in a composite structure

Applications of Ion Exchange Materials in Chemical and Food Industries

One-Pot quaternization strategy for novel Poly(pyridinium-acetamide) ionic polymers as potential anticancer and anti-microbial agents

Sonochemical Synthesis of Mg-TiO2 nanoparticles for persistent Congo red dye degradation

(2E)-3-(3,5-Dimethyl-1-phenyl-1H-pyrazol-4-yl)-1-(2,5-dimethyl-3-thienyl)prop-2-en-1-one

The title compound, (2E)-3-(3,5-dimethyl-1-phenyl-1H-pyrazol-4-yl)-1-(2,5-dimethyl-3-thienyl)prop-2-en-1-one (3) was synthesized in high yield by aldol condensation of 3-acetyl-2,5-dimethylthiophene and 3,5-dimethyl-1-phenylpyrazole-4-carboxaldehyde in ethanolic NaOH at room temperature. Its structure was fully characterized by elemental analysis, IR, 1H NMR, 13C NMR and EI-MS spectral analysis.

Synthesis of novel pyrazole incorporating a coumarin moiety (PC) for selective and sensitive Co²⁺detection

An efficient regioselective synthesis of a novel pyrazole derivative containing a coumarin moiety was achieved, which was electrodeposited as PC/Nafion/GCE sensor probe to detect the selective Co²⁺ions for the safety of environment and healthcare fields.

Photoinduced intramolecular charge transfer and photophysical characteristics of (2Z)-3-[4-(dimethylamino) phenyl]-2-(2-methylphenyl) prop-2-ene-nitrile (DPM) in different media

Ternary NiCoP nanosheet array on a Ti mesh: a high-performance electrochemical sensor for glucose detection

Electrode design is of significant importance in the construction of enhanced electrochemical sensing platforms, and nanoarrays are an attractive architecture in molecule detection with large specific surface area and easy access for target molecules. In this communication, we report on the development of a ternary NiCoP nanosheet array on a Ti mesh (NiCoP/Ti) as a non-noble metal efficient catalyst electrode for electro-oxidation of glucose in alkaline electrolytes. As an electrochemical sensor for glucose detection, NiCoP/Ti shows a fast response time of less than 3 s, a low detection limit of 0.13 μM (S/N = 3), and a high sensitivity of 14 586 μA mM^-1 cm^-2. This sensor is also stable with high selectivity, specificity and reproducibility, and its application for real sample analysis is also demonstrated successfully.

Microwave Assisted Synthesis, Optical Properties and Physicochemical Investigations on the Powerful Fluorophore: Donor (D) -π-Acceptor (A) Chalcone