Abstract: Embodiments of the present invention encompass methods of forming graphene from graphene oxide and/or graphite oxide using tomato juice.

Abstract: A multi-walled titanium-based nanotube array containing metal or non-metal dopants is formed, in which the dopants are in the form of ions, compounds, clusters and particles located on at least one of a surface, inter-wall space and core of the nanotube. The structure can include multiple dopants, in the form of metal or non-metal ions, compounds, clusters or particles. The dopants can be located on one or more of on the surface of the nanotube, the inter-wall space (interlayer) of the nanotube and the core of the nanotube. The nanotubes may be formed by providing a titanium precursor, converting the titanium precursor into titanium-based layered materials to form titanium-based nanosheets, and transforming the titanium-based nanosheets to multi-walled titanium-based nanotubes.

Abstract: The present invention applies carbon nanotubes to catalyst particles, thereby providing catalyst particles which are usable in fluidized bed reactions, have high catalytic activity, and are easy to handle. The catalyst particles are carbon nanotube-coated catalyst particles which each comprise a carrier particle and a coating layer disposed on the surface of the carrier particle, wherein the carrier particles are flowable in fluidized beds and the coating layer comprises carbon nanotubes which have metal nanoparticles supported thereon and/or which have been doped with nitrogen or boron. The carbon nanotube-coated catalyst particles are flowable in fluidized bed reactions.

Abstract: [Object] To provide an adsorbent, an adsorbent sheet, and a carbon/polymer composite for adsorbing a virus having further improved virus adsorption capability. [Solving Means] An adsorbent for adsorbing a virus according to the present invention has a specific surface area value as measured by the nitrogen BET method of 10 m2/g or more and a pore volume as measured by the BJH method of 0.1 cm3/g or more. An adsorbent sheet for adsorbing a virus according to the present invention includes a porous carbonaceous material having a specific surface area value as measured by the nitrogen BET method of 10 m2/g or more and a pore volume as measured by the BJH method of 0.1 cm3/g or more. A carbon/polymer composite for adsorbing a virus according to the present invention includes a porous carbonaceous material having a specific surface area value as measured by the nitrogen BET method of 10 m2/g or more and a pore volume as measured by the BJH method of 0.1 cm3/g or more; and a binder.

Abstract: A process for purifying semiconducting single-walled carbon nanotubes (sc-SWCNTs) extracted with a conjugated polymer, the process comprising exchanging the conjugated polymer with an s-tetrazine based polymer in a processed sc-SWCNT dispersion that comprises the conjugated polymer associated with the sc-SWCNTs. The process can be used for production of thin film transistors and chemical sensors. In addition, disclosed herein is use of an s-tetrazine based polymer for purification of semiconducting single-walled carbon nanotubes (sc-SWCNTs).

Abstract: The present invention refers to a process for the preparation of an aqueous solution comprising at least one earth alkali hydrogen carbonate and its uses. The process may be carried out in a reactor system comprising a tank (1) equipped with a stirrer (2), at least one filtering device (4) and a grinding device (18).

Abstract: Methods of making a carbon nanotube material and uses thereof are described. The methods can include obtaining a carbon-containing polymeric matrix shell having a single discrete void space defined by the carbon-containing polymeric matrix shell or having an encapsulated core and subjecting the carbon-containing polymeric matrix shell to a graphitization process to form a shell having a carbon nanotube network from the matrix. The resulting carbon nanotube material includes a shell having a network of carbon nanotubes and either (i) a single discrete void space defined by the network of carbon nanotubes or (ii) the encapsulated core surrounded by the network of carbon nanotubes.

Abstract: A method of making heteroatom-doped activated carbon is described in this application. Specifically, it describes a process that utilizes liquid furfuryl-functional-group compounds as starting materials, which are then used to dissolve the heteroatom containing source compounds, before being polymerized into solids using catalysts. The polymerized solids are then carbonized and activated to make the heteroatom-doped activated carbon. Electric double-layer capacitors (EDLC) were fabricated with activated carbons doped with boron and nitrogen, and tested for performance. Also, the boron and nitrogen content in the activated carbons was confirmed by chemical analysis.

Abstract: The present disclosure is directed to methods for producing a single-walled carbon nanotube in a chemical vapor deposition (CVD) reactor. The methods comprise contacting liquid catalyst droplets and a carbon source in the reactor, and forming a single walled carbon nanotube at the surface of the liquid catalyst droplets.

Abstract: A method for manufacturing graphene-based material is disclosed. A graphene oxide dispersion includes graphene oxide dispersed in solvent. A hydrogen sulfide gas is introduced to the graphene oxide dispersion at a reacting temperature to achieve a graphene dispersion. The hydrogen sulfide reduces graphene oxide into graphene, and elemental sulfur produced from the hydrogen sulfide is deposited on surfaces of the graphene. The solvent and elemental sulfur are removed to achieve a graphene composite material.

Abstract: A method for manufacturing graphene-based material is disclosed. A graphene oxide dispersion includes graphene oxide dispersed in solvent. A hydrogen sulfide gas is introduced to the graphene oxide dispersion at a reacting temperature to achieve a graphene dispersion. The hydrogen sulfide reduces graphene oxide into graphene, and elemental sulfur produced from the hydrogen sulfide is deposited on surfaces of the graphene. The solvent and elemental sulfur are removed to achieve a graphene composite material.

Abstract: A process for the preparation of a granulated or pelletized sorption medium from a partially decomposed organic material like peat, followed by low-temperature thermal activation of the sorption medium to produce a high degree of granule or pellet hardness balanced against an efficacious level of ion-exchange and adsorption capacity, followed by chemical treatment of the sorption material via a preselected solution of soluble salts (called “APTsorb II*M”) for use in a wastewater treatment process where competing toxic metal cations are present in the wastewater is provided by this invention.

Abstract: There is provided a method for producing relatively easily handleable exfoliated graphite by exfoliating graphite without complicated steps, and exfoliated graphite obtained by the method. A method for producing exfoliated graphite, comprising steps of preparing a composition which comprises graphite or primary exfoliated graphite and a polymer and in which the polymer is fixed to the graphite or primary exfoliated graphite; and pyrolyzing the polymer contained in the composition to exfoliate the graphite or primary exfoliated graphite and remove the polymer by pyrolysis.

Abstract: A method of producing a graphene-based material, namely a direct sonication assisted method for producing a graphene-based material, in particular comprising 2D porous graphene includes subjecting a mixture of at least one carbide compound and at least one etching compound to sonication. This method enables the production of large amounts of a graphene-based material in a short time at ambient temperature and pressure and without the need for toxic reactants. The obtained porous graphene-based material has excellent electrical conductivity, due to the direct chemical synthesis, and is free of any template and not attached to any substrate. The 2D porous graphene can be directly used without transfer processes. The invention further relates to the graphene-based material obtained or obtainable by the method and the use of the graphene-based material.

Abstract: This invention generally relates to metal chalcogenide nanostructures, methods for their preparation and methods of use. A method is disclosed that transforms zinc chalcogenide nanowires into nanorods or quadrilateral nanostructures in an anneal step. Particular embodiments comprise ZnO nanostructures.

Abstract: Methods of producing high purity powders of submicron particles of metal oxides are presented. The methods comprise providing or forming an alloy of a first metal with a second metal, optionally heating the alloy, subjecting the alloy to a leaching agent to remove the second metal from the alloy and to oxidize the first metal, thus forming submicron oxide particles of the first metal. Collections of high purity, high surface area, submicron particles are presented as well.

Abstract: Synthesis of titanium dioxide nanoparticles using Origanum majorana (O. majorana) herbal extracts may be achieved by mixing Titanium (IV) isopropoxide (TTIP) with O. majorana extracts. The O. majorana herbal extracts may be extracts obtained using boiled water. The TTIP may be mixed with the O. majorana extract at a ratio of 2:1. The resulting paste may be heated and pounded into a powder. The powder may then be calcinated in a muffle furnace, producing O. majorana titanium dioxide nanoparticles. The O. majorana titanium dioxide nanoparticles may be efficient photocatalysts.

Abstract: A porous carbon that can sufficiently adsorb water vapor on a high humidity side is provided. A porous carbon is characterized by having mesopores and micropores and having a water vapor adsorbed amount ratio, as defined by the following expression (1), of 1.8 or higher. It is particularly preferable that the water vapor adsorbed amount ratio as defined by the following expression (1) be 2.0 or higher. It is also preferable that the water vapor adsorbed amount at a relative humidity of 70% be 50 mg/g or greater. Water vapor adsorbed amount ratio=water vapor adsorbed amount at a relative humidity of 90%/water vapor adsorbed amount at a relative humidity of 70%.

Abstract: A plasma treatment method that includes providing treatment chamber including an intermediate heating volume and an interior treatment volume. The interior treatment volume contains an electrode assembly for generating a plasma and the intermediate heating volume heats the interior treatment volume. A work piece is traversed through the treatment chamber. A process gas is introduced to the interior treatment volume of the treatment chamber. A plasma is formed with the electrode assembly from the process gas, wherein a reactive species of the plasma is accelerated towards the fiber tow by flow vortices produced in the interior treatment volume by the electrode assembly.

Abstract: A sorbent composition such as for the removal of a contaminant species from a fluid stream, a method for manufacturing a sorbent composition and a method for the treatment of a flue gas stream to remove heavy metals such as mercury (Hg) therefrom. The sorbent composition includes a porous carbonaceous sorbent such as powdered activated carbon (PAC) and a solid particulate additive that functions as a flow-aid to enhance the pneumatic conveyance properties of the sorbent composition. The solid particulate additive may be a flake-like material, for example a phyllosilicate mineral or graphite.