A method and a system for producing a change in a medium. The method places in a vicinity of the medium at least one energy modulation agent. The method applies an initiation energy to the medium. The initiation energy interacts with 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 energy modulation agent.

This document describes self-cleaning devices. In one aspect, a self-cleaning device includes a rigid or semi-rigid surface covered with a photocatalyst, one or more light sources disposed under or above the surface, and a triggering mechanism that activates a cleaning cycle by activating the one or more light sources.

A point-of-use (POU) water filtration device has a container. A plurality of channels is formed within the container, water entering the container flowing through the plurality of channels. A plurality of Ultraviolet (UV) Light Emitting Diodes (LEDs) is provided. Each of the plurality of UV LEDs illuminating UV light down an associated channel of the plurality of channels.

A disinfection system includes an ultraviolet disinfecting light, a controlling device, and an ultraviolet detecting device. The ultraviolet disinfecting light can be turned on or off under control. The controlling device controls the ultraviolet disinfecting light to be turned on or off. The ultraviolet detecting device is signally connected to the controlling device and is for detecting an intensity of the ultraviolet rays emitted by the ultraviolet disinfecting light. The controlling device controls the ultraviolet disinfecting light to increase an ultraviolet radiation dose of the ultraviolet rays emitted by the ultraviolet disinfecting light after the ultraviolet disinfecting light is turned on and the intensity of the ultraviolet rays is less than a predetermined intensity. An elevator equipment includes a car, a lift control device, and the disinfection system. In this way, the space can be disinfected with the ultraviolet rays to avoid insufficient disinfection effect.

A photoelectric device is disclosed. The photoelectric device includes a first electrode, a second electrode, and an electrolyte disposed between the first electrode and the second electrode. The second electrode includes a transparent layer for allowing light to penetrate into the second electrode, an electron transport layer coupled to the transparent layer, and a genetically hybridized fluorescent silk layer as a photo-sensitizer coupled to the electron transport layer.

Provided are titanium oxide particles having a higher photocatalytic activity, particularly a higher visible light activity as compared to the conventional ones; a dispersion liquid thereof; a photocatalyst thin film formed using such dispersion liquid; a member having such photocatalyst thin film on its surface; and a method for producing the titanium oxide particle dispersion liquid. The titanium oxide particles are those with (1) a tin component and a visible light activity-enhancing transition metal component being solid-dissolved in the particles; and with (2) an iron component, a titanium component and a silicon component being adhered to the surfaces of the particles. The titanium oxide particle dispersion liquid is one with the titanium oxide particles being dispersed in an aqueous dispersion medium.

A treatment system, including a conveyor bed configured to transport a plurality of products; a brushing device located along the conveyor bed and having one or more brushes that include a first antimicrobial compound; a surface treatment device including a lamp configured to emit light of a peak wavelength directed toward a portion of the conveyor bed; and a coating device configured to deliver a coating mixture onto the plurality of products on the conveyor bed.

A chemical disinfection process for vehicles using chlorine dioxide and titanium dioxide with calculated re-treatment formulas and schedules based on bacterial infestation data. Systems and methods that include client devices and servers that monitor and control a chemical disinfection process. The system generates a surety arrangement that facilitates re-treatment and electronic notification alerts to chemical solution vendors, dealers and vehicle owners.

The present disclosure relates to a cleaner station that sucks dust stored in a cleaner into the inside thereof and a method for controlling the cleaner station. The cleaner station according to the embodiment of the present disclosure may include: a housing which is coupled to a cleaner; a dust collection motor which is received within the housing and generates a suction force to suck dust within a dust bin of the cleaner; a dust collector which is received within the housing, is disposed above the dust collection motor, and collects the dust sucked from the inside of the dust bin by the dust collection motor; and a collector external sterilization unit which is received within the housing and is provided to cause a sterilization reaction on foreign substances present outside the dust collector.

The present invention relates to a method for producing an antibacterial photocatalytic ceramic that comprises: —making available at least one amorphous metal; —making available a biomimetic material or a biomaterial based on calcium phosphate; —functionalizing said biomimetic material or said biomaterial based on calcium phosphate, with said at least one amorphous metal, obtaining a functionalized and oriented composite; —adding said functionalized composite to a ceramic mixture, and/or applying said functionalized composite on a ceramic semi-finished product, where ceramic semi-finished product means the ceramic material before baking; —applying said functionalized composite on a ceramic semi-finished product; —baking at a temperature between 600 and 1400° C., preferably between 900 and 1300° C., for a time that varies from 20 to 500 minutes, obtaining an antibacterial photocatalytic ceramic. The present invention further relates to a photocatalytic ceramic material that comprises a biomimetic material having a nanostructured hierarchical structure with macro and micro cavities, within which at least one photocatalytic material selected from metal oxides and/or sulphides in the crystalline form with a rutile-like structure is included, and tiles, sanitary ware and tableware comprising the same.