Abstract: A substrate, at least one surface of which is partially or entirely flat, the substrate having: a substrate molded from first substrate-forming particles; second substrate-forming particles partially or entirely filled into first pores which are formed by the first substrate-forming particles on at least one surface of the substrate; and a polymer partially or entirely filled into second pores remaining in a region in which the second substrate-forming particles are filled. Also disclosed is a method for preparing a thin or thick film, including the aligning non-spherical seed crystals on a flat portion of at least one surface of the substrate such that an a-axis, a b-axis, and/or a c-axis are oriented according to a certain rule; and exposing the aligned seed crystals to a solution for enabling the growth of the seed crystals to thereby form and grow a film from the seed crystals using a secondary growing technique.

Abstract: The present disclosure relates to a reducing method of carbon dioxide using sunlight and hydrogen, and an apparatus therefor.

Abstract: A synthetic gel for crystal growth, which induces only secondary growth from the surface of a silicalite-1 or zeolite beta seed crystal and cannot induce crystal nucleation in the synthetic gel for crystal growth or on the surface of the seed crystal. The synthetic gel contains fumed silica, tetraethylammonium hydroxide (TEAOH), [(NH4)2SiF6], KOH, and H2O, or contains tetraethylorthosilicate (TEOS), tetraethylammonium hydroxide (TEAOH), hydrogen fluoride, and H2O.

Abstract: The present disclosure relates to a novel copper silicate molecular sieve, and a novel method for producing the molecular sieve, which is capable of synthesizing the copper silicate molecular sieve with a high yield.

Abstract: Provided are a method for preparing a thin film or a thick film, including: a first step of providing a porous substrate capable of supplying silicon; a second step of applying zeolite seed crystals onto the surface of the porous substrate; a third step of coating the seed crystals-applied porous substrate with an aqueous solution containing a structure-directing agent; and a fourth step of forming and growing a film from the seed crystals by the secondary growth above a temperature at which moisture inside the seed crystals-applied porous substrate prepared in the third step can form steam, and a film prepared by the method. The film manufacturing method of the present invention is a simple manufacturing process, and thus has high reproducibility and high throughput. Since a synthetic gel is not used and a solution is used, the unnecessary consumption of materials, environmental pollution, and waste of a synthetic gel can be prevented while not necessitating drying and washing of a film.

Abstract: The present disclosure relates to a preparing method of a zeolite core/silica zeolite shell composite, which includes adding a zeolite seed crystal into a gel solution containing a silicon-source compound, a structure directing agent and a fluorine anion-source compound, and then, crystallizing the gel solution for growing a silica zeolite shell containing a crystal structure which is coherent with that of the zeolite seed crystal; a zeolite core/silica zeolite shell composite prepared by the preparing method above; and catalytic use of the zeolite core/silica zeolite shell composite.

Abstract: The present application relates to a porous thin film having holes, wherein the holes are formed in the top part and/or the bottom part of the thin film and the holes are linked to the pores of the thin film; and the present invention also relates to a production method for a porous thin film having holes, comprising the use of a particle alignment layer as a mould.

Abstract: The present disclosure relates to an apparatus for a reduction reaction of carbon dioxide using solar energy and a reducing method of carbon dioxide for reacting carbon dioxide gas and hydrogen gas with each other by using solar energy.

Abstract: The present invention relates to a method for preparing composites of substrate-molecular sieve, in particular, to a method for preparing a composite of substrate-molecular sieve, which comprises applying a physical pressure to molecular sieve crystals against a substrate to form a chemical bond between the molecular sieve crystal and the substrate. The present invention requiring no solvents, reactors and other equipments enables molecular sieve crystals to be stably attached to the surface of substrates through various chemical bonds, particularly ionic present invention ensures the synthesis of substrate-molecular sieve composites with enhanced attachment rate, degree of lateral close packing (DCP) and attachment strength in more time-saving and energy-saving manners. The present method works well for molecular sieve crystals with lager sizes (e.g., more than 3 ?m) with no generation of parasitic crystals.

Abstract: The present disclosure relates to a reducing method of carbon dioxide using sunlight and hydrogen, and an apparatus therefor.

Abstract: The present application relates to a porous thin film having holes, wherein the holes are formed in the top part and/or the bottom part of the thin film and the holes are linked to the pores of the thin film; and the present invention also relates to a production method for a porous thin film having holes, comprising the use of a particle alignment layer as a mold.

Abstract: The present invention provides a method for manufacturing a bowl-shaped structure, a bowl-shaped structure manufactured thereby, and a bowl array using the bowl-shaped structure, wherein the method for manufacturing the bowl-shaped structure comprises the following steps: putting into contact a first substrate, on which a particle alignment layer is formed, and a second substrate so as to transfer the particle alignment layer to the second substrate; forming a particle-thin film complex by coating the particle alignment layer that is transferred on the second substrate with a thin film formation substance; removing a portion of the thin film formation substance from the complex to expose particles, and then removing the exposed particles to form a template having a hole; and forming the bowl-shaped structure by coating a first substance on the surface of the hole of the template and then removing the template.

Abstract: The present application relates to a hydrogen ion transport membrane, which is formed by using a porous thin film having a plurality of holes which are regularly aligned, a membrane for generating hydrogen, and a method for manufacturing the hydrogen ion transport membrane and the membrane for generating hydrogen.

Abstract: The present disclosure relates to a novel composite structure for artificial photosynthesis reaction and an integrated reaction device for artificial photosynthesis including the same, and a novel composite structure for water splitting reaction and an integrated reaction device for water splitting including the same.

Abstract: The present application relates to a method for dispersing quantum dots (QDs) or quantum wires in zeolite, to zeolite containing quantum dots or quantum wires dispersed by the method, and to a method for stabilizing quantum dots or quantum wires in zeolite.

Abstract: The present invention provides a method for preparing a thin or thick film, comprising the steps of: (1) arranging non-spherical seed crystals on a substrate such that all the a-, b- and c-axes of each seed crystal are oriented under a predetermined rule; and (2) forming and growing the film from the seed crystals through secondary growth by exposing the arranged seed crystals of step (1) to a seed crystal growth solution. The invention also provides a film prepared by the method. According to the invention, crystals or films larger than the seed crystals can be prepared.

Abstract: The present application relates to a porous thin film having holes, wherein the holes are formed in the top part and/or the bottom part of the thin film and the holes are linked to the pores of the thin film; and the present invention also relates to a production method for a porous thin film having holes, comprising the use of a particle alignment layer as a mould.

Abstract: The present invention relates to a novel method for producing titanium dioxide particles, and titanium dioxide particles produced thereby, and more specifically, to a novel method for producing titanium dioxide particles capable of producing titanium dioxide particles having uniform particle size through chemical reaction at a temperature equal to or lower than room temperature and can easily control the size of titanium dioxide particles, and titanium dioxide particles produced thereby, having a uniform particle size.

Abstract: The present disclosure relates to a novel method of preparing a vanadosilicate molecular sieve, and a vanadosilicate molecular sieve and their derivatives prepared by the same method. The preparing method of a vanadosilicate molecular sieve includes forming a vanadosilicate molecular sieve by a hydrothermal reaction of a reaction mixture containing a silicon source, a base, a V5+-containing compound as a vanadium source, a reducing agent, a salt and water.

Abstract: The present disclosure relates to a particle and a method for manufacturing the particle, in particular, a particle in various shapes having a size ranging from several nanometers (nm) to tens of micrometers (?m), and a method for manufacturing the particle.