Characterization and photocatalytic activity of SiO2-TiO2 mixed oxide nanoparticles prepared by sol-gel method Ali Mahyar*‚ Mohammad Ali Behnajady & Naser Modirshahla Department of Applied Chemistry‚ Faculty of Science‚ Islamic Azad University‚ Tabriz Branch‚ Tabriz‚ Iran Email: alimahyar@hotmail.com Received 9 August 2010; revised and accepted 15 November 2010 SiO2-TiO2 mixed oxides have been prepared by sol-gel technique from titanium tetraisopropoxide and tetraethylorthosilicate. The prepared materials
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Thin Layer Chromatography of Unknown Samples and Paprika By: Uyen Huynh Date: June 18‚ 2014 Lab Partners: Philip Murray Professor and section: M. Pandey‚ CHM2210L.601 Data: Analysis of Drug Store Items Knowns Rf Values Aspirin .91 cm Acetaminophen .85 cm Ascorbic Acid .86 cm Unknown .97 cm Identity of unknown mixture Acetaminophen Analysis of Paprika Pigments Spot Number Rf Color 1 1 Red-orange 2 1 Red-orange Calculations
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Soc 1998;75:1735 – 40. Jiang J.-Q.‚ Graham NJD‚ Harward C. Comparison of polyferric sulphate with other coagulants for the removal of algae and algae-derived organic matter. Water Sci Technol 1993;27:221 – 30. Kaya VM‚ Picard G. Stability of chitosan gel as entrapment matrix of viable Scenedesmus bicellularis cells immobilized on screens for tertiary treatment of wastewater. Bioresour Technol 1996;56:147 – 55. Koopman B‚ Lincoln EP. Autoflotation harvesting of algae from high rate pond effluents. Agric
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Diels-Alder Synthesis of Exo-Norbornene-cis-5‚6-Dicarboxylic Anhydride for Organic Chemistry Laboratory Instruction Kyle Myers and Dr. James Roark University of Nebraska at Kearney‚ Department of Chemistry‚ Kearney‚ NE 68849 Abstract A technique for the Diels-Alder synthesis of endo-norbornene-cis-5‚6dicarboxylic anhydride and its stereoisomer‚ exo-norbornene-cis-5‚6-dicarboxylic anhydride‚ is explained. To prove that each stereoisomer was made in the experiment and to distinguish between the
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Introduction Achieving a satisfactory comfort level for pilot and passengers is a primary goal when developing any aircraft environmental control system. Methods to meet this goal will differ depending on the size of aircraft‚ due to the changing volume of airflow there several way for air condition system for a aircraft. The best choice for small aircraft vapour cycle cooling system(VCCS) been used. Vapour cycle refrigeration is the predominant means of air-conditioning in small - and medium-size
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Have you ever wondered what colored dyes go into your favorite candies? Chromatography can solve that for you. Chromatography is a separation technique used by scientists for separating both organic and inorganic compounds. There are four different types of chromatography: thin layer‚ liquid‚ gas‚ and paper‚ but for this lab paper chromatography will be used. Who invented chromatography? A Russian botanist named Mikhail Semyonovich Tsvet invented chromatography in 1901 while doing research on plant
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Asymmetric Epoxidation of Dihydronaphthalene with a Synthesized Jacobsen’s Catalyst Justin Lindsey 12/08/96 Chem 250 GG Professor Tim Hoyt TA: Andrea Egans Abstract. 1‚2 diaminocyclohexane was reacted with L-(+)-tartaric acid to yield (R‚R)-1‚2-diaminocyclohexane mono-(+)-tartrate salt. The tartrate salt was then reacted with potassium carbonate and 3‚5-di-tert-butylsalicylaldehyde to yield (R‚R)-N‚N’-Bis(3‚5-di-tert-butylsalicylidene)-1‚2-cyclohexanediamine‚ which was then reacted with Mn(OAc)2*4H2O
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Chapter 1 INTRODUCTION Currently Kenya has taken a major initiative on developing the infrastructures such as express highways‚ power projects and industrial structures‚ to meet the vision 2030 in the requirements of globalization in the construction of buildings and other structures. Concrete is the premier construction material across the world and the most widely used in all types of civil engineering works‚ including infrastructure‚ low and high-rise buildings‚ defense installations‚ environment
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Biosynthesis‚ characterization and applications of biosurfactant produced by Pseudomonas cepacia using de-oiled rice-bran Garima Bhardwaj1‚ Swaranjit Singh Cameotra2‚ Harish Kumar Chopra1* 1*Department of Chemistry‚ Sant Longowal Institute of Engineering and Technology‚ Longowal - 148106‚ Distt. Sangrur (Pb.)‚ India. E-mail: hk67@rediffmail.com Fax: 91-1672-280072; Tel: 91-1672-305204 (O) 2Institute of Microbial Technology‚ Sector-39-A‚ Chandigarh-160036‚ India Abstract: Pseudomonas cepacia MTCC
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Materials and methods Preparation of saponins from sea cucumber: Saponins were isolated from the sea cucumber‚ Holothuria thomasi (purchased from Hurghada‚ Red sea‚ Egypt and identified by Zoology department‚ Faculty of science‚ Tanta‚ Egypt)‚ according to the method described by Hu et al.‚ (2010) with some modification. Air-dried body walls (750 g) of sea cucumber were grinded into powder and extracted with eight liter with refluxing ethanol. The combined extracts were evaporated with rotary evaporator
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