Significant progress has been made in direct air capture (DAC) in recent years. Evidence
suggests that the large-scale deployment of DAC by adsorption would be technically …

CO 2 is one of the major anthropogenic greenhouse gases in the atmosphere contributing to
global warming (Blamey et al., 2010; Mikkelsen et al., 2010). In the last half-century, the …

This review focuses on important stability issues facing amine-functionalized CO2
adsorbents, including amine-grafted and amine-impregnated silicas, zeolites, metal–organic …

Silica materials are used in a wide range of applications such as catalysis, photocatalysis,
CO2 capture, and environmental remediation. These nanomaterials (NMs) have been …

In the ongoing research campaign to reduce the global atmospheric CO2 concentration,
technologies are being developed to enable the capture of CO2 from dilute sources and …

Direct air capture (DAC) emerges as a new technology that can contribute to “negative
carbon emission”. Recent progress in surface chemistry and material synthesis has allowed …

A unified CO2–amine reaction mechanism applicable to absorption in aqueous or
nonaqueous solutions and to adsorption on immobilized amines in the presence of both dry …

CO2 is 45 to 50 times more concentrated in soil than in air, resulting in global diffusive fluxes
that outpace fossil fuel combustion by an order of magnitude. Despite the scale of soil CO2 …

The minimization of escalating atmospheric emission level of CO 2 is alarming. Intensive
research has been done to study the gas storage properties of the porous materials …

The nature of the surface species formed through the adsorption of CO2 on amine‐grafted
mesoporous silica is investigated through in situ FTIR spectroscopy with the aid of 15N …