Spectroscopy

Nanometric composite TiO2, TiO2-SiO2 (TS10) and AgTiO2-SiO2 (A4TS10) powder photo-catalysts have been synthesized via sol-gel assisted with hydrothermal treatment method and employed for aqueous phenol decomposition under sunlight irradiation. Characteristics of those samples are analyzed by using X-ray diffraction (XRD), Fourier transformed infrared spectroscopy (FT-IR), Energy dispersive X-ray (EDX), Transmission electron microscope (TEM), Brunauer-EmmettTeller (BET) surface area and UV-Vis absorption method.

5p vijaguar 16-11-2022 5 0   Download

Fourier Transformed Infrared Spectroscopy (FTIR) and Scanning Electron Microscopy (SEM) coupled with Energy Dispersive X-ray Spectroscopy (EDS) were used for the ‘‘in vitro’’ evaluation of the bioactivity. The obtained results confirmed that the ceramic powder can be used as biomaterial for bone tissue engineering due to its high bioactivity expressed by the rapid formation of a biological carbonated hydroxyapatite layer on its surface after ‘‘in vitro’’ assay.

4p vijaguar 16-11-2022 1 0   Download

Plastic materials are defined as including the whole of organic polymers owning plasticity. Their production increases rapidly due to their superior properties and applications in our life. Currently, the annual production of plastic is estimated at nearly 400 million tons.

8p vipagani 24-10-2022 5 1   Download

Organic additives, i.e., fatty acid amide compounds, are typically used to reduce the viscosity of asphalt mixture at high-temperatures working operation. Present work focuses on preparing fatty acid amide from waste cooking oil and its characterization as an additive for bitumen.

8p viporsche 25-10-2022 10 1   Download

Silicon quantum dots (Si QD) with visible light emission has attracted much attention as a promising replacement, due to the properties of being non-toxic, earthabundant, and environmentally friendly, as well as the ease of integration into wellestablished industrial silicon processes.

4p vipagani 20-10-2022 2 1   Download

The study "Starch recovery from turmeric powder (Curcuma longa) after ethanol curcumin extraction in comparison to the conventional method" aimed to recover starch from the waste generated from the curcumin extraction by using ethanol.

10p tieuvulinhhoa 22-09-2022 4 1   Download

Several investigations contributed to developing the Electrical Resistivity Spectroscopy equipment used to evaluate meat standards. In the prior research, a method for effectively calculating the power resistance spectra of pork meat was devised. This method was successfully implemented. Electrodes fabricated from medical knitting needles and the term means syringes were used in this study to measure the energy-dispersive spectra of flesh.

10p vibentley 08-09-2022 14 1   Download

(BQ) Ebook part 1 presents the following content: Chapter 1: Self-Assembling Cyclic Peptide-Based Nanomaterials; Chapter 2: Designer Nanomaterials for the Production of Energy and High Value-Added Chemicals; Chapter 3: Supramolecular Receptors for Fullerenes; Chapter 4: Click Chemistry: A Quote for Function; Chapter 5: Supramolecular Interactions and Smart Materials: C–X…X′–M Halogen Bonds and Gas Sorption in Molecular Solids; Chapter 6: Application of Advanced Solid-State NMR Techniques to the Characterization of Nanomaterials: A Focus on Interfaces and Structure; Chapter 7: New Tools for ...

248p runordie7 30-08-2022 5 1   Download

Bacterial blight is one of the most devastating rice diseases that causes huge economic loss worldwide. The cause of rice blight is Gram negative bacteria Xanthomonas oryzae pv. oryzae (X. oryzae pv. oryzae).

9p vipriyankagandhi 27-07-2022 4 1   Download

In the paper "A Raman Spectroscopy Study of Disorder and Local Vibrational Modes in \({\rm{L}}{{\rm{a}}_{{\rm{0:7}}}}{\rm{S}}{{\rm{r}}_{{\rm{0:3}}}}{\rm{M}}{{\rm{n}}_{{\rm{1 - x}}}}{{\rm{M}}_{\rm{x}}}{{\rm{O}}_{\rm{3}}}\) (M=Fe, Co)", the authors present results of Raman scattering and X-ray diraction studies of \({\rm{L}}{{\rm{a}}_{{\rm{0:7}}}}{\rm{S}}{{\rm{r}}_{{\rm{0:3}}}}{\rm{M}}{{\rm{n}}_{{\rm{1 - x}}}}{{\rm{M}}_{\rm{x}}}{{\rm{O}}_{\rm{3}}}\) (M=Fe, Co) manganites. Some Mn atoms were replaced by Fe and Co with x in the range of 0.0 { 0.75.

4p runordie5 04-07-2022 0 0   Download

In this work, the SnO2 nanofibers (NFs) were directly synthesized through a electrospinning method following the annealing treatment process at 600°C for 3h. The morphological, compositional, crystal properties of material were characterized using field emission scanning electron microscopy (FESEM), energy dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), respectively.

5p vimelindagates 18-07-2022 3 1   Download

Hydroxyapatite (HA) is one of the most important calcium phosphate minerals due to its application in orthopaedics and dentistry. The applications of the synthesized HA powder depend upon the morphology of the HA. In this research, hydroxyapatite crystal nanowires are synthesized by simple hydrothermal method from clamshells.

5p vimelindagates 18-07-2022 2 1   Download

An attempt to prepare a solid polymer electrolyte from jackfruit gum was made. Jackfruit gum (JG) was purified and subjected to epoxidation process. Lithium perchlorate (LiClO4) was dispersed in JG and epoxidized jackfruit gum (EJG). The structural characterizations were made through NMR spectroscopy and gel permeation chromatography.

4p vimelindagates 18-07-2022 1 1   Download

Characterization of chemical structure and determination of composition of Vietnam commercial natural rubbers (CNR) were carried out to investigate the relationship between structure and properties of natural rubber. Five different grades of CNRs used are SVR10, SVR5, SVR3L, SVRCV50 and SVRCV60. The CNRs films were prepared by solution casting technique following by acetone extraction.

5p vimelindagates 18-07-2022 3 1   Download

Bi1-xEuxFeO3 (BEFO) (x = 0.00 ÷ 0.10) materials were prepared by sol-gel method. The crystal structural, Raman scattering, magnetic and optical properties of BEFO were investigated by X-ray diffraction (XRD), Raman scattering spectroscopy, magnetic hysteresis (M-H) loops and fluorescence spectroscopy (FL), respectively.

7p vimelindagates 18-07-2022 5 1   Download

CuO nanorods were prepared by thermal oxidation method in ozone ambient. The effect of annealing temprature in the range from 400 to 600 oC on morphology and structure of nanorods was studied thouroughly by scanning electron microscopy (SEM) and X-ray diffraction, combining with energy dispersive spectroscopy (EDS) and Raman spectroscopy.

7p vimelindagates 18-07-2022 6 1   Download

Lead-free \(B{i_{0.5}}{(N{a_{0.80}}{K_{0.20}})_{0.5}}Ti{O_3}\) (BNKT) particles were synthesized by using sol-gel method. The samples were investigated by X-ray diffractometry (XRD), scanning electron microscope (SEM), energy-dispersive X-ray spectroscopy (EDX), and vibrating sample magnetometer (VSM).

12p vimelindagates 18-07-2022 7 1   Download

This report presented an effective way to synthesize MnO2/graphene nanocomposites using the plasma electrolysis method for photocatalytic degradation of methyl orange dye in water. The morphology, structure, and chemical composition of MnO2/graphene nanocomposites materials were investigated through scanning electron microscopy (SEM), Raman spectra, and Fouriertransform infrared (FTIR) spectroscopy, respectively.

7p vimelindagates 18-07-2022 5 2   Download

Heterostemma grandiflorum Cost. is a flowering plant of Asclepiadaceae family, distributed in Hoa Binh, Hanoi, Ha Nam,... provinces. We have reported first results about chemical constituents and cytotoxicity of H. grandiflorum collected in Me Linh, Hanoi in the previous paper.

7p vimelindagates 18-07-2022 4 1   Download

This study aims to synthesize and characterize Fe3O4@SiO2 sub-nanoparticles (SNPs) with high saturation magnetization (SM). The research process was conducted in simple and environmentally friendly conditions. The results of ultraviolet-visible (UV-Vis) spectroscopy and X-ray diffraction (XRD) analysis presented that the Fe3O4@SiO2 SNPs were well formed and the phase change of Fe3O4 NPs did not happen in Fe3O4@SiO2 SNPs.

5p vichristinelagarde 04-07-2022 5 0   Download