The aerosol particulate matter collecting device includes a shell, a first electric field component, a second electric field component and the collection unit. The first electric field component is connected to the shell and forms a first electric field area, the second electric field component is connected to the shell and forms a second electric field area, the second electric field component includes a first plate and a second plate, and the electric property of the first plate is opposite to that of the first electric charges; a bottom plate of the collection unit is located between the first plate and the second plate, protrusions are arranged on the bottom plate, a flow channel for accommodating collecting liquid is formed in the bottom plate, the protrusions are configured to enable the flow channel to extend along a curve.

An isolation chip for separating and isolating target particles from a bioliquid sample includes a reagent reservoir, a first filtration membrane, a second filtration membrane, a first chamber, and a second chamber. The reagent reservoir includes a first sidewall and a second sidewall opposite to the first sidewall. The first filtration membrane is disposed at an upper portion of the first sidewall. The reagent reservoir defines a first window at a lower portion of the first sidewall. The second filtration membrane is disposed at the second sidewall. The first chamber is connected to the reagent reservoir through the first filtration membrane. The second chamber is connected to the reagent reservoir through the second filtration membrane. A device and a method for detecting the target particles are further provided.

A device for treating air with alpha radioisotope ionization, comprising a frame having an internal surface, the internal surface defining an internal space, a pair of internal brackets arranged within the internal space and removably connected to the frame, each internal bracket arranged to have at least one spacer arranged between the respective bracket and the internal surface of the frame, and at least one alpha ionizing apparatus removably connected to the pair of internal brackets.

A method for preparing a porous nano-fiber heterostructure photocatalytic filter screen includes: preparing a noble metal nanostructure with tunable spectra and a heterostructure composite photocatalyst of a photocatalytic material; and preparing a large area and multilayer porous nano-fiber filter screen structure, while utilizing a scattering enhancement effect of metal nanoparticles in an porous optical fiber to realize repeated conduction of sunlight in the optical fiber and finally interact with the composite photocatalyst on a surface to improve photocatalytic efficiency. Preparation of the heterostructure composite photocatalyst with a wide spectral response of and tunable visible to infrared band spectra is realized, at the same time, with reference to high adsorbability, high light transmission of nanometer fiber and unique optical characteristics of metal nanoparticles, an air purification filter screen with a high sunlight utilization rate and a high catalytic degradation capability is creatively provided.

The present disclosure is directed to ion generator device supports. An ion generator device support is configured to retain an ion generator device in a cavity formed by a plurality of walls of the ion generator device support.

The present invention generally relates to methods and systems for capturing a Lewis acid gas (e.g., CO.sub.2). In some embodiments, the methods and systems utilize an ionic liquid incorporated into one or more electrochemical cells.

A semiconductor waste abatement system for a semiconductor processing system includes a vacuum pump, an abatement apparatus having an abatement chamber in fluid communication with a source of semiconductor waste gas from the semiconductor processing chamber, and with the abatement chamber configured to ionize the waste gas and to exhaust ionized gas. The abatement system further includes a filter apparatus with a filter chamber, which forms a liquid reservoir. The inlet of the filter apparatus is in fluid communication with the outlet of the abatement chamber and the liquid reservoir, and the outlet of the filter apparatus is in communication with the inlet of the vacuum pump, wherein the filter chamber is under a vacuum, and wherein semiconductor waste gas is ionized in the abatement chamber and then filtered by the filter apparatus prior to input to the vacuum pump.

Described herein are various embodiments of an oxygen concentrator system. In some embodiments, oxygen concentrator system includes one or more components that improve the useful lifetime of gas separation adsorbents.

Systems and methods for producing nitrates, nitric acid, salts thereof, or a mixture thereof are disclosed. The systems may include a feed conduit configured for receiving a feed stream comprising molecular oxygen and molecular nitrogen; an inlet conduit configured for receiving an inlet stream; a plasma reactor fluidically coupled to the inlet conduit, the plasma reactor fluidically coupled to a reactor-outlet conduit configured for receiving the reactor-outlet stream, the plasma reactor configured to produce oxidized nitrogen species; and an absorber fluidically coupled to the reactor-outlet conduit, the absorber configured to receive the reactor outlet stream and to produce nitrates, nitrites, nitric acid, salts thereof, or a mixture thereof from the reactor outlet stream. A recycle conduit may be fluidically coupled to the absorber and the inlet conduit, wherein the recycle conduit is configured to receive the gas-phase stream from the absorber and provide the gas-phase stream to the inlet conduit.

An air ionization unit is provided to ionize air to remove particulates and to release cleaned air. Air moves into the air ionization unit where it may be first filtered by an air intake filter. The air is moved, preferably by a fan, into contact with an ion generator, where the air is ionized. One or more (such as two) other fans may be used to provide airflow to (1) at least partially remove ions emanating from the air that has been exposed to the ion generator, and (2) to push the cleaned air through one or more ozone filters and out of the air ionization unit. The air ionization unit may also include an outgoing air filter, and one or more doors to access the air intake filter and/or the air ionization unit.