Physical Chemistry
نویسندگان
چکیده
The approaches range from theoretical studies – including statistical physics of non-equilibrium systems – to the organic synthesis of molecules and macromolecules, and they include many experimental studies on biological and biomimetic systems in which the parameters can be changed. A variety of microscopical techniques are used such as optical, multiphoton, electron and atomic force microscopy, as well as other experimental techniques like microfluidics in a clean-room environment, optical tweezers and magnetic tweezers and micromanipulation.
منابع مشابه
Application of Photo-Fenton System (UV/ H2O2/ Fe2+) for Efficient Decolorization of Azo-Dye Acid Yellow 17 in Aqueous Solution
Herein we report, the robustness of UV/H2O2/Fe2+ system for efficient decolorization of azo-dye Acid Yellow (AY17) solution. It has been found that 88% AY17 decolorized by UV/H2O2/Fe2+ system in 25 minutes under the following optimized conditions; [dye] = 0.14 mM, [H2O2] =1.0 mM, [Fe<s...
متن کاملThermal and catalytic degradation study of polyethylene and investigation the catalytic effect of X-Zeolite and Silica-Alumina on degradation kinetic
The thermal degradation of polyethylene (PE) was carried out in the absence and presence ofcatalystes X-Zeolite and Silica-Alumina at different temperatures. The optimum PE/Catalysisratio was 0.25:0.05 g/g, which produced highest degradation value. PE and PE/Catalysis werecharacterized by thermogravimetric analysis. The thermal degradation properties of polymerhave been studied by Infrared spec...
متن کاملPotentiometric Determination of Acidity Constants of Some Synthesized Organic Compounds in Organic-Water Media
The acidity constants of some synthesized protonated pyrazolo quinazoline compounds were determined potentiometrically at ionic strength of 0.1 M in DMF: water (60:40 v/v) system at different temperatures (298.15 K to 318.15 K). The pKa values have been found to increase with increasing electron-donating nature of substitutions. Some thermodynamics parameters such as enthalpy (ΔH°), Gibb’s free...
متن کاملChemical and Physical Indicators in Drinking Water and Water Sources of Boroujerd Using Principal Components Analysis
Abstract Background and Objective: Quality control of drinking water is important for maintaining health and safety of consumers, and the first step is to study the water quality variables. This study aimed to evaluate the chemical and physical indicators, water quality variables and qualitative classification of drinking water stations and water sources in Boroujerd. Material and Methods...
متن کاملNickel Hydrogenation Composite Catalysts Modified by Zirconium in Competitive Benzene Hydrogenation: Effect of Modifiers
A co-impregnation method was applied to the Ni/Zr-HMS/HZSM-5 catalyst (with various amounts of zirconium) during the hydrogenation of benzene. The physicochemical properties of the prepared nickel catalyst were characterized using X - ray diffraction, X - ray fluorescence, Fourier transform infrared spectroscopy, ultraviolet-visible diffuse reflectance spectroscopy, temperature-programmed desor...
متن کاملStudy on the Thermal Decomposition Kinetics and Calculation of Activation Energy of Degradation of Poly(o-toluidine) Using Thermogravimetric Analysis
Thermo Gravimetric Analysis (TGA) analysis was employed to investigate activation energy (Ea) for the process of degrading of poly(o-toluidine) (POT) applying Horwitz & Metzger, Coats & Redfern and Chan et al., methods. POT was synthesized by chemical oxidative polymerization method using Ammonium per Sulphate (APS) as an oxidant while Dodecylbenzene Sulphonic Acid (DBSA) and sul...
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