Effect of Radiation of Moon on the physical property of Jalkhumbhi (Water hyacinth) Bhasma as a functional nanomaterials for its applications as medicine and in other areas of Science & Technology

Abstract Jalkhumbhi Bhasma as Nanomaterials is prepared using ecofriendly green approach in Pushya nakshtra and Rohini nakshtra. The crystal structure was evaluated, using modern scientific tools. X-ray diffaraction measurement shows that crystalline size and lattice constant of Jalkhumbhi bhasma prepared in Push and Rohini nakshtra were found, 26.62 nm and 54.55 nm and lattice constant 6.312A, 6.301A and respectively. This reveals the effect of radiation of moon alter the crystal structure. The Fourier transform infrared spectroscopy(FTIR) measurement shows functional group present in the materials are of the compound of K, Cl, C-Cl, NH2, C-O-C, C=O, Ca, and Ca(OH)2 respectively. The magnitude of force constant between the atoms are 2.51307 N/cm, 4.16005 N/cm and 2.61932 N/cm, 4.20074 N/cm respectively in both the nakshtras, which measure the interatomic strength. The photoluminescence spectra (PL) reveals that the broad emission of radiation spectrum from both the materials lie in the visible region, showing broad blue emission. The energy band gap value for the most significant intense peak corresponding to 481 nm (2.55 eV) corresponding to 350 nm excitation of radiation and 501 nm (2.475 eV) for 370 nm. The optical property shows that prepared Jalkhambhibhasma may be useful as semiconductor electronics nanomaterials, which were prepared using eco-friendly approach. This may open a new window for material science and pharmaceutical sectar for the production of such materials for electronic based industries, in addition, to using as an evidence based medicine. The effect of natural radiation of moon changes the crystal structure and properties of materials, which are beneficial for health as well as in other areas of science and technology due to its crystalline size and optical properties.

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A new stepped tetranuclear copper(II) complex: synthesis, crystal structure and photoluminescence properties

Acta Crystallographica Section C Structural Chemistry ◽

10.1107/s2053229617004946 ◽

2017 ◽

Vol 73 (5) ◽

pp. 393-398 ◽

Cited By ~ 5

Author(s):

Elif Gungor

Keyword(s):

Crystal Structure ◽

Solid State ◽

Uv Light ◽

Visible Region ◽

Blue Emission ◽

Green Emission ◽

Photoluminescence Properties ◽

X Ray Diffraction ◽

Vis Spectroscopy ◽

Ft Ir

Binuclear and tetranuclear copper(II) complexes are of interest because of their structural, magnetic and photoluminescence properties. Of the several important configurations of tetranuclear copper(II) complexes, there are limited reports on the crystal structures and solid-state photoluminescence properties of `stepped' tetranuclear copper(II) complexes. A new CuII complex, namely bis{μ3-3-[(4-methoxy-2-oxidobenzylidene)amino]propanolato}bis{μ2-3-[(4-methoxy-2-oxidobenzylidene)amino]propanolato}tetracopper(II), [Cu4(C11H13NO3)4], has been synthesized and characterized using elemental analysis, FT–IR, solid-state UV–Vis spectroscopy and single-crystal X-ray diffraction. The crystal structure determination shows that the complex is a stepped tetranuclear structure consisting of two dinuclear [Cu2(L)2] units {L is 3-[(4-methoxy-2-oxidobenzylidene)amino]propanolate}. The two terminal CuII atoms are four-coordinated in square-planar environments, while the two central CuII atoms are five-coordinated in square-pyramidal environments. The solid-state photoluminescence properties of both the complex and 3-[(2-hydroxy-4-methoxybenzylidene)amino]propanol (H2 L) have been investigated at room temperature in the visible region. When the complex and H2 L are excited under UV light at 349 nm, the complex displays a strong blue emission at 469 nm and H2 L displays a green emission at 515 nm.

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Structural, Morphological, Vibrational, Thermal and Optical Properties of ZnS Quantum Dots in the Polymer Matrix

Current Alternative Energy ◽

10.2174/2405463103666190704160914 ◽

2019 ◽

Vol 3 (1) ◽

pp. 50-58

Author(s):

Feroz A. Mir ◽

Owais I. Mir ◽

Rayees A. Zargar

Keyword(s):

Polymer Matrix ◽

Quantum Confinement ◽

Quantum Confinement Effect ◽

Visible Region ◽

Blue Emission ◽

Confinement Effect ◽

Optical Data ◽

Drying Time ◽

Zinc Blend ◽

Ft Ir

Background: Nanotechnology is believed to be a future for new human generations. Among different emerging materials, the Nanocomposites (NCs) would be on front line. The aim of the current study is provide a way to synthesis the ZnS-polyacrylamide NCs with emphasizes on the effect of aging in polymer on its various physical properties. Objectives: To prepare and study the properties of ZnS-Polymer NCs with drying time in polymer matrix. Methods: ZnS-polyacrylamide NCs samples were synthesized by adding aqueous suspension of ZnS Nanoparticles (NPs) in Sol of acrylamide: bisacrylamide copolymer. These samples were characterized by X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), thermogravimetric analysis (TGA), Fourier transform infrared (FT-IR), UV-Vis, and Photoluminescence (PL) spectroscopy. Results: From XRD data analysis, nano phase and zinc blend structure of the material is confirmed. From SEM images, the pristine ZnS NPs show spherical morphology, and this texture is still preserved in the polymer composites. FT-IR confirms that there is strong interaction between polymer chain and ZnS NPs. The TGA results indicate that the incorporation of the NPs impacts the thermal properties of the ZnS-polymer NCs and displaying higher thermal stability than the pure polymer matrix. The optical data predicts the band gap and Quantum Confinement Effect (QCE) and reduction of ZnS NPs within the polymer matrix. These NCs show emission in blue region with decreases in intensity with drying time. Conclusion: ZnS NPs incorporated in polyacrylamide ware prepared by copolymer technique. Structural analysis confirms zinc blend structure. The vibration spectra of composites samples predicts an interaction between different functional groups of polymer with the metal sulfide. These NCs show an enhanced thermally stability. The observed optical band show a red shift and quantum confinement effect. Size calculated by XRD and optical data shows good correlation with each other. The PL spectra of the NCs exhibits a broad blue emission with excitation (λex = 320 nm). The visible region emission could be originating from the radiative recombination involving defect states within the ZnS nanocrystals energy band.

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Blue emission of ZrO2:Tm nanocrystals with different crystal structure under UV excitation

Journal of Non-Crystalline Solids ◽

10.1016/j.jnoncrysol.2007.08.064 ◽

2008 ◽

Vol 354 (14) ◽

pp. 1559-1563 ◽

Cited By ~ 38

Author(s):

Hongwu Zhang ◽

Xiaoyan Fu ◽

Shuyun Niu ◽

Qin Xin

Keyword(s):

Crystal Structure ◽

Blue Emission ◽

Uv Excitation

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Crystal Structure and Physical Property of (BEDT-TTF)2(IBr2)2(1,1,2-Trichloroethane)0.5

Chemistry Letters ◽

10.1246/cl.1988.1211 ◽

1988 ◽

Vol 17 (7) ◽

pp. 1211-1214 ◽

Cited By ~ 3

Author(s):

Hideki Yamochi ◽

Hatsumi Urayama ◽

Gunzi Saito ◽

Kokichi Oshima ◽

Atsushi Kawamoto ◽

...

Keyword(s):

Crystal Structure ◽

Physical Property

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Electronic and Magnetic Properties of Li1.5Mn0.5As Alloys in the Cu2Sb Structure

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.702.231 ◽

2013 ◽

Vol 702 ◽

pp. 231-235 ◽

Cited By ~ 1

Author(s):

C.Y. Fong ◽

Liam Damewood ◽

L.H. Yang ◽

C. Felser

Keyword(s):

Crystal Structure ◽

Magnetic Properties ◽

Ab Initio ◽

Lattice Constant ◽

Magnetic Moments ◽

The Other ◽

Half Metallicity ◽

Ionic Model ◽

Half Metals ◽

Ferromagnetic Metals

We investigated two formula-units of Li1.5Mn0.5As alloys, such as Li3MnAs2, in the Cu2Sb crystal structure using an ab-initio algorithm. By interchanging Mn with each Li located at different positions of the Li4As2unit cell, four separate alloys are formed. At the optimized lattice constant, two of these alloys are predicted to be ferromagnetic metals and the other two are half metals. The possibility of half metallicity in the first two is also explored. Both the modified Slater-Pauling-Kübler rule and the ionic model can characterize the magnetic moments of the half metals.

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K3Eu5(PO4)6: hydrothermal synthesis, crystal structure and photoluminescence properties

Acta Crystallographica Section C Structural Chemistry ◽

10.1107/s2053229619007794 ◽

2019 ◽

Vol 75 (7) ◽

pp. 883-890 ◽

Cited By ~ 1

Author(s):

Ya-Li Xue ◽

Ai-Yun Zhang ◽

Xiao-Yang Han ◽

Xiao-Qi Cui ◽

Ling Deng ◽

...

Keyword(s):

Crystal Structure ◽

Hydrothermal Synthesis ◽

Uv Light ◽

Three Dimensional ◽

Visible Region ◽

Monoclinic Space Group ◽

Photoluminescence Properties ◽

X Ray Diffraction ◽

Strong Luminescence ◽

Light Excitation

An anhydrous orthophosphate, K3Eu5(PO4)6 (tripotassium pentaeuropium hexaphosphate), has been prepared by a high-temperature solid-state reaction combined with hydrothermal synthesis, and its crystal structure was determined by single-crystal X-ray diffraction analysis (SC-XRD). The results show that the compound crystallizes in the monoclinic space group C2/c and the structure features a three-dimensional framework of [Eu5(PO4)6]∞, with the tunnel filled by K+ ions. The IR spectrum, UV–Vis spectrum and luminescence properties of polycrystalline samples of K3Eu5(PO4)6, annealed at temperatures of 650, 700, 750, 800 and 850 °C, were investigated. Although with a full Eu3+ concentration (9.96 × 1021 ions cm−3), the self-activated phosphor K3Eu5(PO4)6 shows s strong luminescence emission intensity with a quantum yield of 37%. Under near-UV light excitation (393 nm), the series of samples shows the characteristic emissions of Eu3+ ions in the visible region from 575 to 715 nm. The sample sintered at 800 °C gives the strongest emission and its lifetime sintered at 800 °C (1.88 ms) is also the longest of all.

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Investigation on the Effect of the Substrate Temperature on the Photoelectric Properties of the Ga Doped ZnO Film

Materials Science Forum ◽

10.4028/www.scientific.net/msf.852.1066 ◽

2016 ◽

Vol 852 ◽

pp. 1066-1069 ◽

Cited By ~ 1

Author(s):

Hong Tao Zhao ◽

Yi Qiao Shi ◽

Min Tian

Keyword(s):

Crystal Structure ◽

Grain Size ◽

Magnetron Sputtering ◽

Substrate Temperature ◽

Hall Mobility ◽

Silica Glass ◽

Visible Region ◽

Zno Film ◽

Photoelectric Properties ◽

Doped Zno

The Ga doped ZnO film (GZO) was fabricated via magnetron sputtering on the substrate of silica glass. The effect of substrate temperature on the photoelectric properties of GZO film, such as morphology, grain size, crystal structure and transparency was studied. The results showed us that the crystallinity of GZO film was improved by increasing the substrate temperature . The GZO film exhibited high transmittance (above 80% in the visible region) at the substrate temperature higher than 200°C. The lowest resistivity of 4.45×10-4Ω·cm and highest hall mobility of 11.7 cm2 v-1s-1 were obtained when the substrate temperature was 300°C.

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