A substance is treated using a device having: (a) a volute or cyclone head, (b) a throat connected to the volute or cyclone head, (c) a parabolic reflector connected to the throat, (d) a first wave energy source comprising a first electrode within the volute or cyclone head that extends through the outlet into the opening of the throat along the central axis, and a second electrode extending into the parabolic reflector and spaced apart and axially aligned with first electrode, and (e) a second wave energy source disposed inside the throat, embedded within the throat or disposed around the throat. The substance is directed to the inlet of the volute or cyclone head and irradiated with one or more wave energies produced by the first and second wave energy sources as the substance passes through the device.

The present invention relates to an air purifier, and more particularly, to a portable or vehicle-mounted air purifier. The present invention is advantageous for effectively capturing and sterilizing airborne virus particles by generating OH radicals with sterilizing capabilities through the application of a light source and a photocatalyst containing a light-responsive material.

Provided is a photocatalytic air purifier which includes, in a housing, a photocatalyst that purifies air and a light source that irradiates the photocatalyst with light exerting a photocatalytic action, in which the photocatalyst is elastically supported in the housing. Also provided is an air purification method comprising: using a photocatalytic air purifier including, in a housing, a photocatalyst that purifies air and a light source that irradiates the photocatalyst with light exerting a photocatalytic action; elastically supporting the photocatalyst in the housing; and vibrating the photocatalyst.

The present disclosure relates to a composition that includes tetrakis(4-hydroxyphenyl)ethylene (THPE), an amino polymer, and a substrate that includes a metal oxide, where the substrate has a pore volume, and the THPE and the amino polymer are positioned within the pore volume.

Disclosed is a hybrid system of carbon dioxide compact separation membrane and carbon recycling for an urban power plant for effluent carbon dioxide concentration control, including a blower into which an exhaust gas is input and which distributes the exhaust gas, a photo-culture process unit which receives the exhaust gas from the blower, performs a photo-culture process using microalgae, and discharges a first treatment gas, a mixing tank into which the exhaust gas supplied from the blower and the first treatment gas are input, a separation membrane process unit which receives a second treatment gas mixed in the mixing tank, and separates a third enriched gas from the second treatment gas using a plurality of separation membranes, a mineralization reaction unit which mineralizes carbon dioxide using the third enriched gas separated in the separation membrane process unit and discharges a third treatment gas to the mixing tank, a sensor unit which measures a carbon dioxide concentration discharged from each process using a plurality of sensors, and a control unit which controls operations of the photo-culture process unit, the separation membrane process unit and the mineralization reaction unit according to a carbon dioxide content of the inflow exhaust gas.

An air purifying coating system and method for making same having a carrier agent and a diatomic frustule particle dispersion combined with the carrier agent. The diatomic frustule particle dispersion may include diatomic frustule zinc oxide particles, diatomic frustule titanium dioxide particles, or combinations thereof. The coating system may include 70-99.9 weight percent carrier agent and 0.1-30 weight percent diatomic frustule particle dispersion. The carrier agent of the coating system may include a cleaning agent or a polishing agent. The diatomic frustule particle dispersion may include 1-35 micron particle size diatomic frustule particles combined with water and dispersion additive. The dispersion may further include an anti-settling additive, a rheology additive, and/or or a defoamer.

A device and method for passive collection of atmospheric CO2 is disclosed. The device includes a chamber having an inner wall, an outer wall. an annular void between the inner and outer walls. and a sump connecting the annular void and an inner cylinder. The device also includes a capture structure having a sorbent material and movable between open and closed configurations. The device includes a water delivery device with a pump and a water applicator positioned within the annular void to dispense water onto the outer wall. The pump transfers water from the sump to the applicator. The open configuration includes the sorbent exposed and allowed to capture CO2. The closed configuration includes the capture structure being enclosed inside the chamber such that a heated water vapor releases captured CO2. The vapor is created by the solar heating of the outer wall and the water dispensed within.

Provided is a catalyst filter including: a filter frame defining a plurality of first recesses therein; and a photocatalyst provided in each of the plurality of first recesses, where the photocatalyst includes a support including a metal compound and metal nanoparticles including aluminum (Al) or silver (Ag), and the metal nanoparticle is embedded in the support.

A water generation unit configured to extract water from ambient air is provided. The water generation unit comprises a housing defining therewithin an extraction chamber, and comprising one or more sidewalls defining a housing opening, the housing further comprises a liquid-passable housing bottom comprising a perforated plate configured to support thereon a thermoresponsive sorbent medium; an air-supply arrangement configured to introduce ambient air into the extraction chamber via the housing opening, the air-supply arrangement comprising a circulation device configured to create an airflow into the extraction chamber from the ambient air; a heating arrangement configured to facilitate heating of the extraction chamber by solar radiation impinging thereon; and an accumulation arrangement comprising an accumulation element disposed below the housing bottom, the accumulation element being configured to facilitate accumulation of water which passes from the extraction chamber through the perforated plate.

A portable air purifier of the present invention includes a housing and a purification module accommodated inside the housing, the purification module including an upper case, a lower case, a support, a blower fan, and a purification unit. In the portable air purifier, the support is formed in a replaceable type to be attachable to and detachable from the upper case and the lower case, which makes it possible to manufacture various types of portable air purifiers to correspond to different air purification types by replacing a minimum number of parts, thereby making manufacturing processes easy and reducing manufacturing costs.