Oxygen surface groups analysis of carbonaceous samples pyrolysed at low temperature

Hotová, Gabriela; Slovák, Václav; Soares, O.S.G.P.; Figueiredo, José; Pereira, M.F.R.

doi:10.1016/j.carbon.2018.03.067

Cited by 53 publications

(28 citation statements)

References 13 publications

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“…25 Also, activated carbon has been commonly used as adsorbents for volatile organic compounds (VOCs), due to the hydrophobic surface that is appropriate for adsorption of organic compounds. 26 In recent years, it has attracted attention as a low cost solution with a number of useful features (chemisorption, high surface area, material hardness, etc.). 27,28 Its surface area range is between 800 and 1200 m 2 g À1 .…”

Section: Introductionmentioning

confidence: 99%

“…The presence of surface oxygens can inuence the adsorption properties of AC, as a result of the formation of additional and diverse binding sites. 3,26 Chemical or thermal treatments can be used to manipulate the proportion of oxygen surface groups. In contrast to heating, oxidation/activation can be used for increasing the number of oxygen surface groups.…”

Section: Introductionmentioning

confidence: 99%

“…In contrast to heating, oxidation/activation can be used for increasing the number of oxygen surface groups. 26 Cu-BDC MOF contains copper nodes interconnected by 1,4benzene dicarboxylate (BDC) coordinated as 2D layers within the bulk crystal. The Cu-BDC MOF is oen water stable and can be used as an adsorbent to remove pollutants and gas storage.…”

Section: Introductionmentioning

confidence: 99%

“…2 To date, a number of studies have addressed the reduction of toluene just under certain circumstances such as concentration. 3,8,26,35,36 These studies did not perform an optimization of essential variables regarding the adsorption capacity. The present study thus addresses this knowledge gap with the aim to provide a comprehensive study of the adsorption behavior of toluene under various operational parameters.…”

Section: Introductionmentioning

confidence: 99%

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Toluene adsorption on porous Cu–BDC@OAC composite at various operating conditions: optimization by response surface methodology

et al. 2020

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Toluene adsorption on porous Cu–BDC@OAC composite at various operating conditions: optimization by response surface methodology

et al. 2020

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“…The latter signal is sourced from the products of vacuum pyrolysis of Cx groups and some A and L groups. Red-Ox transformations can also produce H2O, CO, and CO2 [23]. But, the main pyrolysis product at high temperatures is CO sourced from the Ph groups [24,25].…”

Section: Resultsmentioning

confidence: 99%

CO₂ adsorption on pristine, oxidized, and diethylamine-functionalized activated carbon sorbents

et al. 2020

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Adsorption is currently the most promising capture technology to shorten atmospheric emissions of carbon dioxide (CO2). In this article, we report on the adsorption of CO2 onto pristine, oxidized, and aminated activated carbon (AC) sorbents. From our findings, some functionalized AC sorbents have shown very promising results in the CO2 capture process. Their maximum adsorption capacity measured by the thermogravimetric method at 20 °C varies between 2.2 and 3.9 mmol CO2/g depending on the content of diethylamino and oxygen-containing groups. The functionalization of the carbon surface with diethylamino groups improves the adsorption capacity by 30-40%. The CO2 adsorption little depends on the texture parameters of the pristine AC sorbents. In the range from 20 to 100 °C, the CO2 thermodesorption showed the effective regeneration of the sorbents. The aminated carbon surface demonstrates the best CO2 adsorption but binds the adsorbed molecules stronger than the oxidized surface, which limits the sorbent regeneration.

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KOH Activated Carbon Coated 3D Wood Solar Evaporator with Highest Water Transport Height and Evaporation Rate for Clean Water Production

Zhang,

Hu,

Guo

et al. 2024

Advanced Science

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The water evaporation rate of 3D solar evaporator heavily relies on the water transport height of the evaporator. In this work, a 3D solar evaporator featuring a soil capillary‐like structure is designed by surface coating native balsa wood using potassium hydroxide activated carbon (KAC). This KAC‐coated wood evaporator can transport water up to 32 cm, surpassing that of native wood by ≈8 times. Moreover, under 1 kW m−2 solar radiation without wind, the KAC‐coated wood evaporator exhibits a remarkable water evaporation rate of 25.3 kg m−2 h−1, ranking among the highest compared with other reported evaporators. The exceptional water transport capabilities of the KAC‐coated wood should be attributed to the black and hydrophilic KAC film, which creates a porous network resembling a soil capillary structure to facilitate efficient water transport. In the porous network of coated KAC film, the small internal pores play a pivotal role in achieving rapid capillary condensation, while the larger interstitial channels store condensed water, further promoting water transport up more and micropore capillary condensation. Moreover, this innovative design demonstrates efficacy in retarding phenol from wastewater through absorption onto the coated KAC film, thus presenting a new avenue for high‐efficiency clean water production.

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Oxygen surface groups analysis of carbonaceous samples pyrolysed at low temperature

Cited by 53 publications

References 13 publications

Toluene adsorption on porous Cu–BDC@OAC composite at various operating conditions: optimization by response surface methodology

Toluene adsorption on porous Cu–BDC@OAC composite at various operating conditions: optimization by response surface methodology

CO₂ adsorption on pristine, oxidized, and diethylamine-functionalized activated carbon sorbents

KOH Activated Carbon Coated 3D Wood Solar Evaporator with Highest Water Transport Height and Evaporation Rate for Clean Water Production

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Oxygen surface groups analysis of carbonaceous samples pyrolysed at low temperature

Cited by 53 publications

References 13 publications

Toluene adsorption on porous Cu–BDC@OAC composite at various operating conditions: optimization by response surface methodology

Toluene adsorption on porous Cu–BDC@OAC composite at various operating conditions: optimization by response surface methodology

CO2 adsorption on pristine, oxidized, and diethylamine-functionalized activated carbon sorbents

KOH Activated Carbon Coated 3D Wood Solar Evaporator with Highest Water Transport Height and Evaporation Rate for Clean Water Production

Contact Info

Product

Resources

About

CO₂ adsorption on pristine, oxidized, and diethylamine-functionalized activated carbon sorbents