Devices suitable for use in an advanced oxidation method for organic and inorganic pollutants deploying OH* radicals and ozone is disclosed. Optionally, a first discharge device, providing OH* radicals and second discharge device providing ozone, are combined to provide desirable chemical and biocidal characteristics. Further, efficient mixing systems for transferring the radicals to the target fluid are disclosed.

A method of dissociating hydrogen and oxygen from a water molecule comprises isolating a predetermined volume of water between concentrically-mounted electrodes; applying a magnetic field across the predetermined volume of water, the magnetic field focused radially and attracting diametrically across the electrodes; exciting water molecules in the isolated volume of water to a resonant harmonic frequency; and synchronously applying short burst high voltage, high frequency AC pulse packets to the isolated volume of water to create an electric field. The AC pulse packets have a burst width of up to 1 millisecond and a voltage up to about 10 MV, and generate an oscillating electromotive force which acts on the excited water molecules to dissociate hydrogen and oxygen.

A device for acoustic wave treatment has an open elongated vessel, whose cross-section tapers progressively towards an opening on the top of said vessel, and a piezoelectric element. The vessel is filled with a liquid and the piezoelectric element emits waves into the liquid. The waves are focused near the opening of the vessel and emerge in a duct.

A method for the preparation of zirconia-multi-walled carbon nanotube nanocomposite utilizing Pluronics as templating agents is described. An efficient method for producing hydrogen gas using the nanocomposite as a photocatalyst.

A method for the preparation of zirconia-multi-walled carbon nanotube nanocomposite utilizing Pluronics as templating agents is described. An efficient method for producing hydrogen gas using the nanocomposite as a photocatalyst.

The photoreactor comprises at least one housing (11) for at least one reaction vessel and at least one light source for lighting said at least one reaction vessel, and the photoreactor comprises: a first module (1) provided with said at least one housing (11) for at least one reaction vessel and comprising a cooling/heating circuit (15) for regulating the temperature of said at least one reaction vessel; a second module (2) provided with said at least one light source; and a thermal insulating layer (5) placed between the first module (1) and the second module (2). It improves reproducibility of the reactions by temperature and light intensity control.

The present invention provides a method of controlling back reactions or recombination reactions of product molecules formed in a dissociation reaction of reactant molecules of a fluid sample, in a reaction chamber. The method comprises introducing the fluid sample into the reaction chamber through one or more inlets, initiating the dissociation reaction of the reactant molecules of the fluid sample in the reaction chamber to form the product molecules, creating a patterned flow of the fluid sample in the reaction chamber to reduce/minimize disordered and/or turbulent mixing of the reactant molecules and/or product molecules in the fluid sample, and conveying the fluid sample comprising the product molecules out from the reaction chamber through one or more outlets.

A sterilization apparatus is provided with: a light source, which has a semiconductor light-emitting element that emits ultraviolet light; a housing, which forms a flow passage through which a fluid subject to sterilization passes; a light receiving unit, which receives a portion of the ultraviolet light emitted from the light source and detects the amount of ultraviolet light that has been received; and a control unit, which controls the output of the semiconductor light-emitting element based on information regarding the amount of ultraviolet light acquired from the light receiving unit. The housing has an incidence portion on which ultraviolet light becomes incident and a reflection portion, which reflects the ultraviolet light at the inner surface thereof. The light receiving unit is provided at a position where the light receiving unit can receive the portion of ultraviolet light that has been transmitted through the reflection portion.

A method and a system for producing a change in a medium disposed in an artificial container. The method places in a vicinity of the medium at least one of a plasmonics agent and an energy modulation agent. The method applies an initiation energy through the artificial container to the medium. The initiation energy interacts with the plasmonics agent or the energy modulation agent to directly or indirectly produce the change in the medium. The system includes an initiation energy source configured to apply an initiation energy to the medium to activate the plasmonics agent or the energy modulation agent.

A method for the preparation of zirconia-multi-walled carbon nanotube nanocomposite utilizing Pluronics as templating agents is described. An efficient method for producing hydrogen gas using the nanocomposite as a photocatalyst.