A nanocomposite and a method of its preparation. The nanocomposite includes a nickel titanate, titanium dioxide including anatase TiO.sub.2 and rutile Ti.sub.0.936O.sub.2, a zinc titanate, and carbon. The nanocomposite includes 20 atom percentage (%) to 40 atom % titanium, 5 to 15 atom %, and 5 atom % to 15 atom % zinc, each based on a total number of atoms in the nanocomposite. The nanocomposite is used in a method of photodegrading an organic pollutant.

A nanocomposite and a method of its preparation. The nanocomposite includes a nickel titanate, titanium dioxide including anatase TiO.sub.2 and rutile Ti.sub.0.936O.sub.2, a zinc titanate, and carbon. The nanocomposite includes 20 atom percentage (%) to 40 atom % titanium, 5 to 15 atom %, and 5 atom % to 15 atom % zinc, each based on a total number of atoms in the nanocomposite. The nanocomposite is used in a method of photodegrading an organic pollutant.

An object of the present invention is to provide means for releasing oxygen at a temperature lower than conventional means in an exhaust gas purification catalyst. A CeZr composite oxide is provided, which has a crystallite diameter of 6.5 nm or less and a BET specific surface area of 90 m.sup.2/g or more.

An organo-template free method for the manufacture of a ferrierite (FER) zeolite and the ferrierite producible by the method. The method comprises (i) forming a reaction gel comprising an aluminium source, sodium and/or potassium hydroxide, and silica sol; and (ii) heating the reaction gel to a temperature and for a duration suitable for the growth of the FER zeolite. The reaction gel does not comprise seed crystals. Moreover the reaction gel does not comprise an organic structure directing agent (OSDA). The ferrierite (FER) zeolite has the following features: a) a SAR of between 11 and 20; b) a BET surface area of between 320 and 380 m.sup.2/g; and c) a micropore volume of between 0.1 and 0.2 cm.sup.3/g.

An organo-template free method for the manufacture of a ferrierite (FER) zeolite and the ferrierite producible by the method. The method comprises (i) forming a reaction gel comprising an aluminium source, sodium and/or potassium hydroxide, and silica sol; and (ii) heating the reaction gel to a temperature and for a duration suitable for the growth of the FER zeolite. The reaction gel does not comprise seed crystals. Moreover the reaction gel does not comprise an organic structure directing agent (OSDA). The ferrierite (FER) zeolite has the following features: a) a SAR of between 11 and 20; b) a BET surface area of between 320 and 380 m.sup.2/g; and c) a micropore volume of between 0.1 and 0.2 cm.sup.3/g.

The present invention relates to a composition comprising a non-zeolitic oxidic material comprising alumina; an 8-membered ring pore zeolitic material comprising one or more of copper and iron, wherein the framework structure of the zeolitic material comprises a tetravalent element Y, a trivalent element X and oxygen, wherein the molar ratio of Y:X, calculated as YO.sub.2X.sub.2O.sub.3, is in the range of from 2:1 to 40:1; wherein at least part of the outer surface of the zeolitic material is covered by a layer comprising the non-zeolitic oxidic material; wherein Y comprises one or more of Si, Sn, Ti, Zr and Ge and X comprises one or more of Al, B, In and Ga.

The present invention relates to a composition comprising a non-zeolitic oxidic material comprising alumina; an 8-membered ring pore zeolitic material comprising one or more of copper and iron, wherein the framework structure of the zeolitic material comprises a tetravalent element Y, a trivalent element X and oxygen, wherein the molar ratio of Y:X, calculated as YO.sub.2X.sub.2O.sub.3, is in the range of from 2:1 to 40:1; wherein at least part of the outer surface of the zeolitic material is covered by a layer comprising the non-zeolitic oxidic material; wherein Y comprises one or more of Si, Sn, Ti, Zr and Ge and X comprises one or more of Al, B, In and Ga.

A modified catalyst support is described in the form of titania particles with a volume-median diameter in the range 100 to 1000 m modified with one or more refractory oxides of metals selected from the group consisting of zirconium, lanthanum, cerium, yttrium and neodymium, wherein the total refractory oxide content of the modified catalyst support is in the range of 0.1 to 15% by weight, and the modified catalyst support has a pore volume in the range of 0.2 to 0.6 cm.sup.3/g and an average pore diameter in the range of 30 to 60 nm. The modified catalyst support may be used to prepare cobalt Fischer-Tropsch catalysts suitable for use in fixed bed processes.

A modified catalyst support is described in the form of titania particles with a volume-median diameter in the range 100 to 1000 m modified with one or more refractory oxides of metals selected from the group consisting of zirconium, lanthanum, cerium, yttrium and neodymium, wherein the total refractory oxide content of the modified catalyst support is in the range of 0.1 to 15% by weight, and the modified catalyst support has a pore volume in the range of 0.2 to 0.6 cm.sup.3/g and an average pore diameter in the range of 30 to 60 nm. The modified catalyst support may be used to prepare cobalt Fischer-Tropsch catalysts suitable for use in fixed bed processes.

A Mg.sub.0.6Ti.sub.2.4O.sub.5/MgTiO.sub.3/tetragonal TiO.sub.2/orthorhombic TiO.sub.2/CdO/C nanocomposite material includes an orthorhombic Mg0.6Ti.sub.2.4O.sub.5 phase; a hexagonal magnesium titanate (MgTiO.sub.3) phase, a tetragonal titanium dioxide (TiO.sub.2) phase, a cubic cadmium Oxide (CdO) phase, and an orthorhombic TiO.sub.2 phase. The Mg.sub.0.6Ti.sub.2.4O.sub.5/MgTiO.sub.3/Tetragonal TiO.sub.2/Orthorhombic TiO.sub.2/CdO/C nanocomposite material has a granular morphology including spherical particles having an average particle diameter ranging from 50 nanometer (nm) to 130 nm. Furthermore, a method of production includes calcination of metal precursors.