Removal of toluene and SO2 by hierarchical porous carbons: a study on adsorption selectivity and mechanism

New Porous Carbon Material Derived from Carbon Microspheres Assembled in Hollow Carbon Spheres and Its Application to Toluene Adsorption

“…At the same time, Huang et al also discovered that the optimal pore size for toluene adsorption was 0.7−2 nm. 49 As described in Figure 3 and Table 2, C 0.1 @ HCS had the largest pore volume of 0.7−3.5 nm, which was also beneficial for toluene adsorption. 26 Figure S4 displays that more oxygen-containing functional groups such as C�O and C−O−C were introduced into HCS when CSs were formed inside HCS, which facilitated the polarity of the carbon framework and promoted the adsorption capacity for the polar toluene.…”

“…Figure S4 displays that more oxygen-containing functional groups such as CO and C–O–C were introduced into HCS when CSs were formed inside HCS, which facilitated the polarity of the carbon framework and promoted the adsorption capacity for the polar toluene . At the same time, the oxygen-containing functional groups would form a strong interaction with aromatic ring p-electrons of toluene when they were close to each other, which was also conducive to capture toluene. , Compared with commercial activated carbon and other adsorbents, C 0.1 @HCS also had higher toluene adsorption capacity ,,,, (Table ).…”

Boosting SO2 Capture within Nitrogen-Doped Microporous Biocarbon Nanosheets

“…In recent decades, numerous porous materials, such as porous carbon (PC), zeolites, and metal organic frameworks (MOFs), have been designed and studied to meet the needs of industrial desulfurization processes. − Among them, MOF materials have developed rapidly in recent years, which represent extremely high adsorption efficiency under extremely low pressure (10.2 mmol/g at 0.1 bar) . Besides, the unique properties of biomass-derived carbon for the removal of acid gases can be attributed to its low cost and good thermal and chemical stabilities, which rival other porous solids. − Although CO 2 adsorption onto PC has been studied in detail, − the capture and storage of SO 2 by PC at low partial pressures have received little attention. , In addition, deep desulfurization at low partial pressures is more important and challenging in practical applications .…”

Micromeso Hierarchical Porous Ultrathin Nitrogen-Doped Carbon Nanosheets with Rough Surfaces for Efficient Gas Adsorption and Separation

“…6,9−11 These gas components can be utilized more efficiently to achieve remarkable economic benefits with the effective separation of natural gas. 12,13 Gas adsorptionseparation and storage technologies have been regarded as economical and environmentally friendly methods to tackle the above situations. 14−17 Adsorbents are the core of this technology and play a decisive role in the effect of gas adsorption separation.…”

“…The greenhouse effect caused by carbon dioxide (CO 2 ) emission is becoming one of the biggest environmental problems in this century. − Although the developed reduction technologies can convert CO 2 into valuable products, such as carbon monoxide, methanol, and glucose, ,, stable and high-purity CO 2 sources are required. Moreover, natural gas, mainly composed of methane (CH 4 ), produces less CO 2 than other fossil fuels and has been utilized worldwide. ,, Ethane (C 2 H 6 ) and propane (C 3 H 8 ) components derived from natural gas are crucial raw materials for preparing ethylene and propylene. ,− These gas components can be utilized more efficiently to achieve remarkable economic benefits with the effective separation of natural gas. , Gas adsorption-separation and storage technologies have been regarded as economical and environmentally friendly methods to tackle the above situations. − Adsorbents are the core of this technology and play a decisive role in the effect of gas adsorption separation. − , …”