نتایج جستجو برای: uv vis spectrophotometer

تعداد نتایج: 83388  

Journal: :Journal of physics 2022

Abstract Strontium Titanate is a perovskite oxide with remarkable properties as photocatalyst. The synthesis of material Neodymium doping (Sr 0.97 Nd 0.03 TiO 3 ) has been completed by means the co-precipitation procedure. Samples were sintered at temperatures 900°C and 1000°C for 4 hours to investigate their properties. X-Ray Diffraction (XRD), Fourier-Transform Infrared spectroscopy (FTIR), U...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بوعلی سینا - دانشکده علوم پایه 1391

پلی آنیلین، پلی آنیلین/تیتانیوم دی اکسید، پلی آنیلین/روی اکسید و نانو کامپوزیت پلیمری رسانای جدید پلی آنیلین/تیتانیوم دی اکسید+روی اکسید بوسیله الکتروپلیمریزاسیون درجا روی سطح الکترود طلا سنتز شده اند. پلی آنیلین و فیلم های نانو کامپوزیتی توسط تکنیک ولتامتری چرخه ای، اسپکتروسکوپی ft-ir ، اندازه گیری مقاومت درجا، اسپکتروسکوپی uv-vis درجا و میکروسکوپ های الکترونی روبشی و عبوری بررسی شدند. اختلاف ...

Journal: :Open Engineering 2022

Abstract Bismuth ferrite (BiFeO 3 ) is an interesting multiferroic material due to its ferroelectric properties at room temperature. In this study, Bi 1− x Pr FeO and BiFeO films were grown on quartz substrates by the chemical solution deposition method 600 o C of annealing Variation in molar concentration was set ( = 0.03, 0.05, 0.1, 0.2) investigate their crystal structure optical characteris...

Journal: :Catalysts 2022

Herein, reduced graphene-oxide-supported ZrO2 and Y2O3 (rGO-ZrO2 rGO-Y2O3) nanocomposites were synthesized by hydrothermal method used as the catalysts for photodegradation of picric acid. The structural morphological properties samples characterized using an X-ray diffractometer (XRD), scanning electron microscope (SEM) with energy dispersive absorption spectroscopy (EDAX), UV-Vis spectrophoto...

Journal: :Al Kimiya: Jurnal Ilmu Kimia dan Terapan 2023

This study focuses on the degradation of phenol in aqueous solutions using photolysis and sonolysis methods. It investigates impact catalyst mass, types light (UV-A, UV-C, visible light), (RHAC, TiO2, TiO2/RHAC), processing time degradation. The are analyzed before after Spectrophotometer UV-Vis HPLC. research aims to understand factors influencing provide a basis for further studies enhance ef...

Journal: :iranian journal of pharmaceutical sciences 0
hamid rza akbari hasanjani azad university, north tehran branch mahmoud reza sohrabi azad university, north tehran branch parviz abdolmaleki tarbiat modares university

the uv-spectrophotometric method of analysis was proposed for simultaneous determination of fluoxetine (flx) and sertraline (srt). considering the strong spectral overlap between uv-vis spectra of these compounds, a previous separation should be carried out in order to determine them by conventional spectrophotometric techniques. here, full-spectrum multivariate calibrations adaptive neuro-fuzz...

Journal: :Journal of environmental sciences 2015
Palaniselvam Kuppusamy Solachuddin J A Ichwan Narasimha Reddy Parine Mashitah M Yusoff Gaanty Pragas Maniam Natanamurugaraj Govindan

In this present study, we reported broccoli (Brassica oleracea L.) as a potential candidate for the synthesis of gold and silver nanoparticles (NPs) in green chemistry method. The synthesized metal nanoparticles are evaluated their antimicrobial efficacy against different human pathogenic organisms. The physico-chemical properties of gold nanoparticles were analyzed using different analytical t...

Journal: :Journal of Synchrotron Radiation 2005

2005
Kenneth Knoblauch

A simple method is introduced for analyzing error score distributions from the Farnsworth-Munsell 100-Hue test. The method involves fitting a sine wave directly to the error distribution, and produces estimates of three parameters that characterize the severity of the defect, the degree of bipolarity, and the orientation of the axis of bipolarity, if one is present. The method produces good est...

2013
Chang Kook Hong Hyun-Seok Ko Eun-Mi Han Je-Jung Yun Kyung-Hee Park

We have successfully introduced green phosphors LaPO4:Ce, Tb (G4) or (Mg, Zn)Al11O19:Eu (G2) into TiO2 photoelectrode of dye-sensitized solar cells. The conversion efficiency of the G4-doped device was enhanced by 30% compared with the pristine TiO2 photoelectrode. The green phosphor doped at 5-wt.% ratio contributed to the reduction of resistances of the surface and interface of the photoelect...

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