The present disclosure relates to a method for making a ceramic mini-tube configured for use in a fluid modification system. The method involves using an electrospinning system to receive a quantity of precursor solution. The electrospinning system creates an electric field which causes the precursor solution, when emitted, to be stretched into a fiber jet. The fiber jet is deposited on a collector resulting in a fiber mat. The fiber mat is removed from the collector, wherein the fiber mat is formed into a shape. The fiber mat is further processed so that the fiber mat retains a desired shape. A heat treatment operation is then performed to convert the fiber mat into a ceramic structure having the desired shape.

A process for preparing an electride compound, comprising (i) providing a precursor compound comprising an oxidic compound of the garnet group; (ii) heating the precursor provided in (i) under plasma forming conditions in a gas atmosphere to a temperature of the precursor above the Httig temperature of the precursor, obtaining the electride compound.

A method for decontamination of a toxic substance is disclosed. The method includes fabricating a plurality of nanomotors, and putting the plurality of nanomotors in contact with a contaminant solution comprising the toxic substance. Fabricating the plurality of nanomotors includes preparing a mesoporous silica template, forming the plurality of nanomotors within the mesoporous silica template, and separating the plurality of nanomotors from the mesoporous silica template. The mesoporous silica template includes a plurality of channels, where each channel of the plurality of channels have a diameter less than about 50 nm and a length of less than about 100 nm, and each nanomotor of the plurality of nanomotors is formed within a channel of the plurality of channels. Putting the plurality of nanomotors in contact with the contaminant solution includes adding hydrogen peroxide (H.sub.2O.sub.2) and the plurality of nanomotors to the contaminant solution.

It is an object of the present invention to provide a photocatalyst-carrying mesh sheet which firmly supports anatase type titanium oxide as a photocatalyst to prevent peeling, and increases opportunities for contact with the photocatalyst to significantly improve a purification treatment efficiency provided by the photocatalyst and to suppress manufacturing cost. A photocatalyst-carrying mesh sheet (S1) is disclosed, which includes: a net-form titanium sheet (11) having a periodic pattern; a titanium oxide film (3) formed on a surface of the net-form titanium sheet (11); and an anatase type titanium oxide particle (4) supported on the titanium oxide film (3).

A method for preparing an SCR catalyst may include: (1) placing a first aqueous solution containing a titanium oxide and a tungstate in an electric field environment, adjusting the pH value of the first aqueous solution, and adjusting the current direction of the electric field environment to obtain a first mixture; (2) providing a second mixture by, in the electric field environment, adding dropwise a second aqueous solution containing a soluble salt of one or more active components, a copper-organic polyamine complex and a dispersant to the first mixture, and adjusting the current direction; and (3) processing the second mixture to obtain the SCR catalyst. The one or more active components may be selected from Ce, Zr, Cu, Fe, Pr and Sc.

The invention relates to a method for applying titanium dioxide-based photocatalytic coatings to a carrier material without using binders. The invention also relates to the use of a coating. According to the invention, a titanium dioxide suspension together with a carrier liquid is sprayed onto a hot carrier in the form of a fine aerosol so that the carrier liquid flash evaporates and titanium dioxide particles of the titanium dioxide suspension are flash sintered onto the carrier material, water being used as the carrier liquid and the carrier material having a temperature of 150 to 250 C. during spraying. According to the invention, a porous and yet stable layer for a catalyst for an efficient and rapid degradation of pollutants is produced.

A hydrocracking catalyst for petroleum hydrocracking is provided, the hydrocracking catalyst provided in a form of at least one fiber, and the at least one fiber comprising at least one zeolite and at least one metal oxide. Methods are also provided to form the hydrocracking catalyst in the form of at least one fiber, particularly electrospinning.

The invention includes apparatus and methods for instantiating and quantum printing materials, such as elemental metals, in a nanoporous carbon powder.

A self-cleaning fabric having a photocatalyst responsive to UV, visible and IR irradiations for inactivating harmful microorganisms via photocatalysis.

The present invention combines the advantages of fabrication of semiconductor heterostructure (Ag.sub.3PO.sub.4WO.sub.3) with plasmonic metals (Pt and Ag) with optical interference to optimize the visible light photo response of plasmonic metals deposited semiconductor (PtAg/Ag.sub.3PO.sub.4WO.sub.3) for visible light assisted H.sub.2 generation utilizing the aqueous bio-alcohols. Crystalline Ag.sub.3PO.sub.4 and WO.sub.3 nanofibers were synthesized by microwave and electrospinning methods. Three different WO.sub.3 nanofibers composition (5, 10 and 15 wt. %) were used to obtain Ag.sub.3PO.sub.4/WO.sub.3 nanocomposite heterostructures, which are effective visible light active photo catalysts. Further, a simple, enviro-friendly, and cost-effective biogenic synthesis method have been achieved using Salvia officinalis extract to decorate Pt and Ag metal nanoparticles on the surface of Ag.sub.3PO.sub.4WO.sub.3 composites. Presence of bioactive agents in the extract are responsible for the Pt and Ag.sub.3PO.sub.4 reduction and for prevention of the Pt nanoparticles from aggregation in aqueous medium.