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157 articles for “UV-Spectroscopic”
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Removal of Lead and Zinc from Industrial Waste water by Amla leaves Nano-bioadsorbent
Abstract: In the present research work, amla leaves (Phyllanthusemblica) were used for preparing nanobioadsorbent to remove heavy metals viz. Lead (Pb) and Zinc (Zn) present in wastewater. The major advantage of using amla leaves as bioadsorbent is its easy availability, abundance, low cost, biodegradable and eco-friendly nature. Prepared bioadsorbent was characterized by infrared spectroscopy (IR), SEM and BET techniques. Variation in the experimental conditions such as pH, adsorbent dosage, stirring speed …
Published in Journal of Water Pollution & Purification Research · Vol. 9, Issue 1, 2022 · pp. 6–15 Read article
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MYCOSYNTHESIS OF SILVER NANOPARTICLES AND INVESTIGATION OF THEIR ANTIMICROBIAL ACTIVITY
Abstract: The silver nanoparticles were formed in contact with the cell free filtrate of Alternaria alternata. The nanoparticles were characterised by means of UV-Vis spectrophotometer, Transmission electron microscopy (TEM), Dynamic Light Scattering (DLS), Energy-dispersive X-ray (EDX), X-ray Diffraction (XRD) and Fourier Transform Infra-red Spectroscopy (FTIR). The synthesized silver nanoparticles showed an absorbance maximum at 420 nm in the visible range. Transmission electron microgram and particle size distribution curve showed the formation …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 1, Issue 1, 2011 · pp. 17–26 Read article
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Enhancement of anticorrosion performance on aluminium substrate by novel nanocomposites of PANI/Bi2O3.CO.ZnO/CNT
Abstract: PANI/Bi2O3.CO.ZnO nanocomposites were prepared in presence of bismuth cobalt oxide nanoparticles at 25oC using ammonium persulphate as an oxidant in an in situ polymerisation with aqueous solution of camphor sulphonic acid (SDBS). These nanocomposites were characterized by XRD, FTIR, TEM, UV and SEM. The performance of PANI, PANI/Bi2O3.CO.ZnO nanocomposites and PANI/Bi2O3.CO.ZnO/CNT nanocomposites as anticorrosion protective coating on Al in 0.5 M HNO3 was studied by using potentiodynamic polymerisation technique and …
Published in Journal of Polymer & Composites · Vol. 6, Issue 2, 2018 · pp. 31–41 Read article
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Properties of ZnO Thin Film deposited on Flexible Substrate using RF Sputtering
Abstract: Semiconductor materials demand is increased in recent years, due to new emerging technologies. There is need to find the alternate for silicon in electronics industry, as silicon is brittle in nature and has low efficiency, which makes it unsuitable for transparent and flexible device. Zinc oxide (ZnO) is emerging as popular choice of researchers due to its wide range of properties, abundancy and non-toxicity. This work explores the properties of …
Published in Journal of Polymer & Composites · Vol. 12, Issue 4, 2024 · pp. 50–56 Read article
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Bio Materials and Nanotechnology: Green Tea (Waste)– Aluminium Nanoparticles (Gt-Al Nps) For Methylene Blue Adsorption
Abstract: This study examines the adsorption of Methylene Blue (MB) dye from aqueous solutions using Aluminium Nanoparticles synthesized with green tea powder as a biological reducing agent. Methylene Blue, an aromatic phenothiazine dye, is widely applied in medical diagnostics and various industrial processes, but its uncontrolled release into water bodies leads to environmental pollution due to its intense colour, stability, and potential toxicity. Therefore, identifying an efficient and eco-friendly adsorbent for …
Published in Journal of Materials & Metallurgical Engineering · Vol. 15, Issue 3, 2025 · pp. 96–107 Read article
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Spectroscopic and Electrical Studies of Conducting Polyaniline Composites Embedded Nanostructure Zinc Sulfide
Abstract: Simple and low-cost chemical precipitation method was used for the synthesis of ZnS nanoparticles using zinc precursor and DMF as a stabilizing agent. Na2S was used as the source of sulphur ions. Composites of polyaniline and ZnS nanoparticles have been synthesized by in-situ chemical oxidation method by varying weight percentage of synthesized ZnS nanoparticles with aniline monomer. Optical studies in terms of UV-Vis and fluorescence show the positive effect of …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 2, Issue 3, 2012 · pp. 25–32 Read article
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Development and Characterization of Antimicrobial Polymer Composites for Food Packaging Applications
Abstract: The increasing demand for sustainable and antimicrobial food packaging materials has led to extensive research in polymer-based composites. This study focuses on developing a polyethylene terephthalate-ethylene vinyl acetate (PET-EVA) composite reinforced with metal oxide nanoparticles (MONs), including Cu₂O, ZnO, and MgO₂. These nanoparticles were selected for their antimicrobial properties and ability to enhance the functional characteristics of the composite. Structural, chemical, mechanical, and barrier properties were extensively evaluated to determine …
Published in Journal of Polymer & Composites · Vol. 13, Issue 5, 2025 · pp. 86–93 Read article
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Tailoring The Electrochemical Interface of Graphene–Gd₂O₃ Nanocomposites for Advanced Energy Storage
Abstract: Graphene–Gd₂O₃ nanocomposites were synthesized by incorporating varying concentrations of reduced graphene oxide (rGO) into Gd₂O₃ using a straightforward room-temperature solution method. The composites were analyzed using various distinct characterization techniques, including X-ray diffraction (XRD), Fourier-transform infrared (FTIR) spectroscopy, Raman spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). Electrochemical measurements, particularly cyclic voltammetry (CV), demonstrated that the incorporation of graphene significantly enhanced the electrochemical performance …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 369–388 Read article
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Influence of Gd Doping in Structural, Morphological and Optical Properties of Zno Nanostructures Synthesised Via Sol-Gel Processes
Abstract: In this study, nanocrystalline Zn1-xGdx (x=0.0 and 0.03) samples were synthesised via the Sol-gel combustion process. An array of analytical techniques was employed to examine the prepared samples to determine their different physical features. For both pristine and Gd-doped samples, the crystal symmetry is hexagonal with the P63mc space group which is verified via the Rietveld refinement analysis of X-ray diffraction (XRD) data. The atoms' bond length Zn-O and bond …
Published in Journal of Polymer & Composites · Vol. 12, Issue 4, 2024 · pp. 219–225 Read article
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Theoretical Study of Surface Waves in Hexagonal Boron Nitride (hBN)
Abstract: Hexagonal boron nitride (hBN) is a wide bandgap semiconductor material in which Boron (B) and Nitrogen (N) atoms form hexagonal structure and has number of robust properties of technological importance. Boron nitride nanotubes (BNNTs) are very nice area of research in recent years. Its structure is similar to carbon nanotubes (CNTs) where carbon atoms are arranged in hexagon. hBN is also known as White Graphene. Various methods are employed to …
Published in Research & Reviews : Journal of Physics · Vol. 13, Issue 1, 2024 Read article
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Chemical Modifications of Polymer for Improved Anti-Microbial Action
Abstract: Infections caused by pathogenic microorganisms are a significant concern. Polymers, large molecules formed by chemically connecting monomers, have acquired significant interest due to their intrinsic properties. Polymers function as a matrix for the components that contain antibacterial agents. Developing polymers with antibacterial activity is a crucial research area that aims to alleviate the problem of microbe contamination. The antibacterial polymers typically exhibit prolonged effectiveness. Modification of polymers enhances their anti-microbial …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 1919–1931 Read article
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Theoretical Study of Surface Excitations at Planar Surface of Zinc Selenide (ZnSe)
Abstract: ZnSe is a II-VI semiconductor material and has very novel properties. So it is currently demanding for various applications. Dispersion relation is employed here to study the elementary surface excitations at the planar surface of Zinc Selenide (ZnSe) semiconductor. These excitations are of various types such as plasmons, phonons, excitons etc. Plasmons are the quanta of valence electron oscillations, phonons are the quanta of lattice vibrations and excitons are the …
Published in Research & Reviews : Journal of Physics · Vol. 11, Issue 3, 2022 · pp. 1–5 Read article
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Growth, Optical, Mechanical and Electrical Properties of Zinc Sulphate Admixtured N-N’-dimethylurea Single Crystals (DMUZS)
Abstract: AbstractThe single crystals of zinc sulphate admixtured N-N’-dimethylurea (DMUZS) were grown by slow evaporation technique from aqueous solution at room temperature. Good quality crystals of size 16×12×5 mm3 had been obtained after 35 days. The grown crystals were characterized by single crystal XRD analysis to determine the lattice constant of the sample. Powder X-ray diffraction studies confirm the crystalline nature of the grown crystal. Fourier transform infrared (FT-IR) studies were …
Published in Research & Reviews : Journal of Physics · Vol. 7, Issue 1, 2018 · pp. 24–33 Read article
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Effect of Zr, Fe Mono, Bimetallic Nanoparticles on the Electronic Properties of PVA/PVP Polymer blend
Abstract: AbstractThis paper describes the environmentally friendly production of polymer blend nanocomposites (PBNCs) made of polyvinyl alcohol (PVA) and polyvinylpyrrolidone (PVP) and embedded with Zirconium(ZrO2), Iron (Fe2O3), and Zirconium-Iron (Zr-Fe), mono and bimetallic nanoparticles (NPs). FTIR spectroscopy was used to investigate the blend's development, interaction between polymers and nanoparticles, interactions between polymers and one another, and the impact of nanoparticles on interactions within PVA/PVP blend nanocomposites. With the addition of nanoparticles …
Published in Journal of Polymer & Composites · Vol. 11, Issue 1, 2023 · pp. 72–80 Read article
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Coupled Plasmon Phonon Polariton Waves in Cylindrical Zinc Selenide (ZnSe) Semiconductor: A Theoretical Study
Abstract: Zinc Selenide (ZnSe) is a semiconductor material. In this study, Bloch hydrodynamical model is applied as a theoretical tool to investigate the coupling among plasmons, phonons and photons in the Zinc Selenide (ZnSe) semiconductor material. Here the geometrical shape of this semiconductor is taken cylindrical and surrounded with vacuum as a dielectric medium. Plasmons are the quanta of elementary excitations produced by the valence electron oscillations and phonons are the …
Published in Research & Reviews : Journal of Physics · Vol. 11, Issue 2, 2022 · pp. 1–5 Read article
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Orange Peels as Biosorbent for Heavy Metals and Its Application in Water Pollution Remediation Studies
Abstract: Ecosystems and public health are seriously threatened by heavy metal poisoning of water sources, which is growing. Heavy metal removal from wastewater using conventional technologies is either costly, ineffective, or results in secondary pollutants. In this regard, biosorption has become an affordable and environmentally beneficial substitute. The mitigation study of heavy metals from wastewater is crucial for the protection of the environment and human health. Efforts have been made to …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 14, Issue 3, 2024 · pp. 7–14 Read article
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Development and Validation of Spectrophotometric and Colorimetric Method for the Determination of Ritonavir in its Bulk and Pharmaceutical Dosage Form
Abstract: A straightforward, exact, precise and sensitive UV spectrophotometric assay technique and a basic and sensitive colorimetric assay method have been created and validated for the quantitative estimation of Ritonavir from bulk drug and tablet formulations. UV spectrophotometric strategy which includes the assurance of Ritonavir in bulk medication and pharmaceutical dosage forms and has an assimilation greatest at 240 nm in methanol. The Beer's law was obeyed over the concentration range …
Published in Trends in Drug Delivery · Vol. 4, Issue 3, 2017 · pp. 32–41 Read article