Download or read book Synthesis and Characterization of Molybdena and Phosphate Doped Silica titania Oxidative Catalyst for Epoxidation of Styrene written by Suhaila Hayon and published by . This book was released on 2014 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Molybdena Doped Titania Supported on TUD C as Oxidative Catalyst in 1 octene Epoxidation written by Mohamad Ridzwan Mansur and published by . This book was released on 2015 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis and Characterization of Transition Metal Doped Titania Silica Aerogels as Photocatalysts written by Yin Yin Tan and published by . This book was released on 2008 with total page 97 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis and Characterization of Platinum Doped Titania and Silver Doped Titania for Photo catalytic Degradation of Pre treated Palm Oil Mill Effluent written by Mohd Rizauddin Deraman and published by . This book was released on 2015 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis and Characterization of Titania based Catalysts for Photocatalytic Applications written by Shawn Kendale Blue and published by . This book was released on 2003 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt: Studies the synthesis of two types of titanium-based catalysts, ultrasonically treated titania powder and zeolite-supported TiO2. The synthesized catalysts are characterized utilizing both SEM (Scanning Electron Microscopy) and elemental analysis. The synthesized catalysts are then kinetically characterized in the degradation of direct black 38 azo dye.
Download or read book N Pentane and 1 Pentene Selective Oxidation Over Molybdena and Vanadia Catalysts Supported on Sol Gel Titania Silica Mixed Oxides written by Rama Venkatachalam and published by . This book was released on 2000 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis Physicochemical Characterization and Catalytic Evaluation of Three dimensionally Ordered Macroporous Metal Oxide Catalysts and Photocatalysts written by Mohammed Abdulmajeed Al-Daous and published by . This book was released on 2003 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis and Characterization of Carbon coated Titania by In situ Polymerization of Styrene by Using Aqueous Hydrogen Peroxide written by Shazliana Mohamad @ Mat Yasin and published by . This book was released on 2011 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis of Titanium Catalyst Containing Polystyrene and Its Catalytic Activity in Epoxidation of 1 octene with Using Hydrogen Peroxide written by Mohd. Hayrie Mohd. Hatta and published by . This book was released on 2011 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis and Characterization of Binary Titania silica Mixed Oxides written by Sridhar Budhi and published by . This book was released on 2010 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis and Characterization of Metal Doped Titanium Dioxide Transition Metal Phosphides Sulfides and Thiophosphates for Photocatalysis and Energy Applications written by Nathaniel Coleman (Jr.) and published by . This book was released on 2015 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis covers synthetic investigations, characterization, and applications of transition metal doped titanium dioxide materials and transition metal phosphide/sulfide structures. Both areas are useful in heterogeneous catalysis, battery energy storage, and in semiconductor light to energy conversion. Two main synthesis routes have been investigated: 1) rapid solid state metathesis (SSM) of transition metal oxides, phosphides, sulfides, and thiophosphates, and 2) sealed ampoule routes of transition metal phosphides and thiophosphates. SSM reactions tend to yield kinetically controlled multiphase products while sealed ampoule routes gave more thermodynamically favorable single phase materials. Approximately 10 mol% of many first row transition metals (M = Cr, Mn, Fe, Co, Ni, Cu) were targeted for doping into TiO2, using MClx, and sodium peroxide in SSM reactions, targeting an ideal mixed phase of M0.1Ti0.9O2. X-ray diffraction showed rutile TiO2 forms and no separate dopant metal phases were seen until subsequent 1000 °C annealing in air. EDS, ICP, and XPS analysis showed slightly lower than the targeted M:Ti ratios however, the manganese sample had more than the ideal 10 mol % of dopant. DRS data showed estimated bandgap energies of the doped samples within 1.33-2.55 eV. Magnetic susceptibility showed small paramagnetic responses from all samples that increase upon annealing. SEM showed that the doped SSM-TiO2 samples were mixtures of aggregates and blocky particles. The synthesized doped titanias were tested for methylene blue and methyl orange photodegradation under UV and visible light and for H2 generation from water reduction under UV light. The doped titania samples absorb significant amounts of methylene blue dye in the dark with the manganese doped TiO2 sample being the most absorbent. Degradation of methylene blue under UV illumination was observed, however, only modest degradation under visible light was observed.
Download or read book Synthesis of Carbon Support Catalyst Containing Titanium Dioxide in Oxidation of Styrene written by Hayati Mohamad Mukhair and published by . This book was released on 2010 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modification of Titania silica based Epoxidation Catalysts and Its Effect on Surface Processes written by Andreas Gisler and published by . This book was released on 2003 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mechanistic Analysis of Styrene Epoxidation Catalyzed by Manganese Porphyrins and Molecular Squares written by María Catalina Curet-Arana and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Experiments were performed with free Mn-porphyrin systems and with the porphyrins inside the molecular squares as catalysts for the epoxidation of styrene using iodosylbenzene as the oxidant. Results indicate that the catalyst is more stable when it is encapsulated in the molecular squares, and complete conversion of the limiting reactant could be obtained.
Download or read book Synthesis of Titanium Containing Aluminophosphate Molecular Sieve in Catalytic Oxidation of Styrene written by Nurliana Roslan and published by . This book was released on 2012 with total page 85 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis Characterization and Catalytic Activity of Silica Supported Bimetallic Copper Catalysts for Organic Oxidation Reactions and the Study of Benzylation of Triketones written by Nuwan Dileepa De Silva and published by . This book was released on 2013 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dissertation describes research work on development of bimetallic heterogeneous catalysts for oxidation of organic compounds. Binuclear metal complexes are an interesting class of compounds due to their catalytic activity. The approach involves anchoring a triketone ligand to Cab-O-Sil via a linker. Specifically, silica gel was allowed to react with p-chloromethylphenyltrimethoxysilane followed by coupling with deprotonated triketone compounds. The viability of this approach was verified by performing the benzylation reaction of triketones with benzyl halides under basic conditions. The benzylation of 2,4,6-heptanetrione and 1,5-diphenyl-1,3,5-pentanetrione is achieved with benzyl bromide using n-tetrabutylammonium fluoride as base. These benzylation reaction conditions were used to attach the triketones to the surface-attached linker. Once the ligand is attached to the silica gel, the catalyst is formed by coordinating two copper(II) ions from solution to the deprotonated triketone. The coordination of copper(II) ions to the triketone was monitored using UV-vis spectroscopy. The modified silica gel is characterized by diffuse reflectance infrared Fourier spectroscopy (DRIFTS), and thermal gravimetric analysis (TGA) at the different stages of catalyst formation. All techniques indicated significant attachment of linker and triketone to the support. The oxidation of 3,5-di-tert-butyl catechol (DTBC) and benzyl alcohol was carried out under aerobic conditions using these catalysts. The kinetics of the DTBC oxidation and benzyl alcohol oxidation was studied using bimetallic and monometallic catalytic systems. The copper complexes of the triketone ligands were also evaluated as catalysts for the oxidation of DTBC. New bimetallic metal complexes with triketone ligands having a benzyl group were synthesized and characterized by high resolution mass spectroscopy and IR spectroscopy. In addition to a detailed description of the synthesis and characterization of new triketone compounds, and the heterogeneous catalyst systems, a comparison of the kinetics of the oxidation of DTBC using these catalysts will be discussed.
Download or read book Preparation and Characterization of Photocatalyst Titanium Dioxide TiO2 Nanoparticles on Silica Gel Supports and Its Application in Phenol Degradation written by Zhi Hua Lee and published by . This book was released on 2000 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
