A photocatalytic composition is disclosed that includes a silver halide in combination with one or more rare earth elements. The composition may be used for the photocatalytic degradation of pollutants.

A photocatalyst injection system including: a reactor primary system coolant collection section collecting a reactor primary system coolant containing a noble metal or noble metal ion from a reactor primary system; a photocatalyst addition section adding a photocatalyst to the collected reactor primary system coolant; an ultraviolet irradiation section irradiating, with ultraviolet rays, the coolant to which the photocatalyst has been added for producing, in the coolant, a noble metal-carrying photocatalyst in which the noble metal is carried on a surface of the photocatalyst; and a noble metal-carrying photocatalyst injection section injecting the coolant containing the noble metal-carrying photocatalyst into the reactor primary system.

The invention provides a lighting device (1) comprising (i) a light source (10) configured to generate light source light (11), and (ii) a light converter (100) configured to convert at least part of the light source light (11) into visible converter light (121), wherein the light converter (100) comprises a polymeric host material (110) with light converter nanoparticles (120) embedded in the polymeric host material (110), wherein the polymeric host material (110) is based on radical polymerizable monomers, wherein the polymeric host material comprises a poly acrylate polymer and wherein the light converter nanoparticles (120) comprise Ag (silver) nanoparticles having mean dimensions below 3 nm.

The present invention discloses high pressure flow reactor vessels and associated systems. Also disclosed are processes for producing thiol compounds and sulfide compounds utilizing these flow reactor vessels.

The present investigation is development of the TiO.sub.2 nanotubes concept of preparation of and their composite with fine dispersion of copper. The inventions also relates to identify a method for optimum amount of photocatalyst required for efficient and maximum hydrogen production reported than earlier (H.sub.2=99,823 μmol.Math.h.sup.−1.Math.g.sup.−1 catalyst) from glycerol-water mixtures under solar light irradiation. A method is disclosed to produce CuO/TiO.sub.2 nanotubes with high sustainability and recyclable activity for hydrogen production.

According to an embodiment of the present invention, an apparatus for ionizing air includes a first reflector and a first target. The first reflector receives direct UV energy (from a UV emitter) and reflects it to form reflected UV energy. The first target has an inner face that also receives direct UV energy (from the UV emitter). The first target also has an outer face that receives the reflected UV energy from the first reflector. The faces of the first target are coated with a photo-catalytic coating. The first target may also have passages between the faces.

Some of the present reactors and systems include a reactor body having a substantially-planar bottom and one or more sidewalls extending from the bottom to define a recess, the reactor body defining inlet(s) and outlet(s) for liquid and gas, and a lid configured to be coupled to the reactor body to cover the recess such that the interface between the reactor body and the lid is substantially sealed, where at least one of the reactor body and the lid is configured to transmit incident ultraviolet light into the recess, and where the reactor body is configured to receive a photocatalyst in the recess such that at least a portion of liquid delivered to the recess through the liquid inlet(s) can react with the photocatalyst in the presence of the ultraviolet light to generate gas. Some reactors and systems include liquid and gas circulation systems having pumps and conduits.

To provide a polymer material having properties that allow the polymer material to replace a polyimide and a polyamide synthesized from a petroleum raw material, said polymer material being synthesized from a raw material derived from natural molecules. [Solution] This polymer material is obtained by polymerizing a polymer raw material comprising a dimer of 4-amino cinnamic acid or a dimer of a 4-amino cinnamic acid derivative, which are natural molecules, wherein the carboxyl group is protected by an alkyl chain. The TGA curve of a polyamide acid (PAA-1) and a polyimide (PI-1) according to the present invention is shown in FIG. 5.

Methods for forming melt processable, actinic radiation polymerizable and crosslinkable adhesives are described. In certain versions, the adhesives or pre-adhesive compositions include two initiators and are polymerized and/or crosslinked by exposure to actinic radiation such as UV light or electron beam radiation. Also described are pre-adhesive compositions including polymerizable monomers, articles including the adhesives, and various methods and systems related to the adhesives and their application. In addition, various apparatuses are described for polymerizing or crosslinking the compositions.

Various ultraviolet (UV) reactors and their methods of fabrication are disclosed. One exemplary process comprises forming a set of parallel channels in a slab of ultraviolet transparent material. The process also comprises providing a reactor substrate with an input manifold and an output manifold. The process also comprises joining the slab of ultraviolet transparent material and the reactor substrate. The input manifold, output manifold, and set of parallel channels are in fluid communication after the joining step. The process also comprises providing a planar ultraviolet light source isolated from the set of parallel channels by the shaped slab of ultraviolet-transparent material. The set of parallel channels and a defining plane of the planar ultraviolet light source are parallel in the assembled ultraviolet reactor.