Search Results - thomas pinnavaia

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Composite Polymer Membranes Containing Mesoporous Metal Oxide Additives

Executive SummaryThe world is facing a shortage of clean and safe water, and membrane filtration is a widely used industrial application to transform non-potable into potable water.  MSU researchers have developed novel high flux, compaction-resistant and durable polymer composite membranes for sustainable, cost-effective drinking water purification...
Published: 3/14/2017   |   Inventor(s): Thomas Pinnavaia, Volodymyr Tarabara
Keywords(s):   Category(s): Advanced Materials

Catalytic Applications of Mesoporous Metallosilicate Molecular Sieves and Method for Their Preparation

IntroductionCatalysis of larger molecules would proceed more quickly with larger pores that would allow for more flux into and out of the pores. In addition, one of the most important methods for converting hydrocarbons to useful industrial chemical, intermediates, and pharmaceuticals is catalytic oxidation. Current oxidation routes result in large...

Nano-layered Silicates with High Chemical Reactivity

IntroductionThe smectite family of layered silicate minerals, the so-called "swelling clays," have theoretical surface areas of 700 meters per gram or larger. However, accessing this surface area for important materials applications such as catalysis, adsorption, and polymer-clay nanocomposite formation is not readily achievable; the elementary one-nanometer...

A Method for the Cost-Effective Preparation of Organofunctional, Mesostructure Molecular Sieves for Toxic, Heavy Metal Ion Trapping and Heterogeneous Catalysis

IntroductionThe ability to create lower cost, industrial strength catalytic materials with desired pore sizes and with a chemically modified surface of organic groups can improve efficiency and selectivity in existing industrial processes that modify vast volumes of fluid. Template agents (usually organic molecules or ions) direct the crystallization...

Ultrastable Porous Aluminosilicate Structures and Derived Compositions for Industrial Catalysis

IntroductionThe ability to create industrial strength catalytic materials with desired pore sizes can improve efficiency in existing industrial processes that modify vast volumes of fluid. Tunable pore sizes of interest 'in catalysis' include micropores (pore diameters up to 2 nm) and mesopores (2 to 50 nm).Description of TechnologyThis technology is...
Published: 9/24/2010   |   Inventor(s): Thomas Pinnavaia, Yu Liu, Wenzhong Zhang
Keywords(s): Catalyst, Kaolin, Mesoporous, Metakaolin, Micropores, Zeolite Category(s): Chemicals, Materials, Nanotechnology

Ultrastable Organofunctional Microporous to Mesoporous Silica Compositions for Industrial Catalysis

IntroductionThe ability to create industrial strength catalytic materials with desired pore sizes and with a chemically modified surface of organic groups can improve efficiency and selectivity in existing industrial processes that modify vast volumes of fluid. Template agents (usually organic molecules or ions) direct the crystallization of the zeolite...

Improved Alumina Catalyst

IntroductionAlumina has been used as a catalyst in a wide variety of industrial processes for many years. Even modest improvements in alumina catalysts can have a significant impact on efficiencies of production of a very wide variety of chemical compounds. There is a continuing commercial need for new tailored alumina catalysts that can more efficiently...

Higher Efficiency Process for Preparing Clays for Use in Nanocomposites

IntroductionPolymer-clay nanocomposites are used in such applications as packaging films, containers, automobile trim and injection-molded components. Homostructured mixed ion clays used in such nanocomposites require a relatively slow and complicated process to be prepared. The existing process for preparing homoionic organoclays (a critical component...
Published: 9/23/2010   |   Inventor(s): Thomas Pinnavaia, Zhen Wang
Keywords(s): Homostructured, Intercalation, Layered Silicates, Nanocomposites, Polymers Category(s): Chemicals, Mechanical, Nanotechnology

Hydrophobic Mesoporous Silica Composition

IntroductionThere is a need for improvements in the preparation of porous materials that are active for binding metals from solution on an industrial scale. The materials have the composition of organic-inorganic metal oxides and prior art is difficult to synthesize or to achieve ideal porosity for metal binding.Description of TechnologyThis technology...
Published: 9/17/2010   |   Inventor(s): Thomas Pinnavaia, Louis Mercier
Keywords(s): Heavy Metal Sorbent, Mesoporous, Organosilica, Purification Category(s): Chemicals, Nanotechnology, Materials