A method and system for carbon capture through a voltage-swing is provided. The present invention may include capturing carbon dioxide from a gas mixture through physisorption by applying a positive electrical charge to a sorbent to increase the sorbent's selectivity and adsorption and liberating the carbon dioxide from the sorbent by removing the positive electrical charge from the sorbent and applying a desorption method to the sorbent.

In one aspect, the disclosure relates to methods for hydrogen storage and a composition comprising hydrogenated graphene formed by the disclosed methods. In one aspect, the method comprises: irradiating a graphene sample with electrons at energies of about 1 keV to about 40 keV at about 1 atm of pressure, thereby forming hydrogenated graphene. Also disclosed herein is a method for releasing stored hydrogen, comprising heating a hydrogenated graphene sample formed by a method disclosed herein at a temperature of about 240 C. to about 300 C. Also disclosed herein is a system for hydrogenating graphene, comprising a graphene sample and an electron accelerator configured to irradiate the graphene sample with electrons in ambient air at about 1 atm of pressure. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.

There is provided a dielectric barrier electrical discharge apparatus, system and method. The apparatus comprises at least two electrodes arranged in use to provide at least one anode and at least one cathode an electric field thereby being establishable therebetween, the at least two electrodes being separated to allow a fluid to be present between the electrodes in use. At least one of the electrodes has a dielectric portion connected to at least part of said electrode, and a sub-macroscopic structure is connected to at least one of the electrodes or dielectric portion.

A surgical treatment system for contaminated air streams having particulate contamination, polar contamination and/or nonpolar contamination in the gas or vapor stream. A surgical smoke plume treatment system and method provide or define a multi-stage treatment process that mechanically filters the air stream, followed by nonpolar decontamination and then polar decontamination or treatment. The system may be used stand alone or incorporated and used with other surgical instruments or incorporated into an air handler adapted to decontaminate an air stream. A desiccant may optionally be used to remove water from the air stream.

Air purification apparatuses and methods are provided. An air purification apparatus includes an air purification chamber and a supply chamber coupled to the air purification chamber. The air purification chamber includes a purification reactor, a first electron accelerator that irradiates a first electron beam to the purification reactor, and a second electron accelerator that irradiates a second electron beam to the purification reactor. The supply chamber includes a power supply that supplies power to each of the first electron accelerator and the second electron accelerator. The second electron accelerator is opposite to the first electron accelerator across the purification reactor.