Recent advances in developing engineered biochar for CO2 capture: An insight into the biochar modification approaches

Shafawi, Anis Natasha; Mohamed, Abdul Rahman; Lahijani, Pooya; Mohammadi, Maedeh

doi:10.1016/j.jece.2021.106869

Cited by 93 publications

(36 citation statements)

References 227 publications

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“…40 Aromatic structures in the carbon matrix could also contribute to the physical adsorption through the van der Waals interaction (aromatic π interaction). 41 Figure 4b displays the XPS C 1s spectra before and after CO 2 adsorption. The C 1s spectrum before CO 2 adsorption could be deconvoluted into two peaks, in which a large peak at 284.9 eV was assigned to the sp 3 hybridized carbon, whereas a small peak centered at 286.1 eV was attributed to the C−O linkage.…”

Section: Mg(oh)mentioning

confidence: 74%

“…The physical adsorption of CO 2 is dominated by a micropore-filling effect, in which the micropores with pore sizes in the range of 0.3–0.8 nm are the most effective for the adsorption of CO 2 . Aromatic structures in the carbon matrix could also contribute to the physical adsorption through the van der Waals interaction (aromatic π interaction) …”

Section: Results and Discussionmentioning

confidence: 99%

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Facile Synthesis of MgO Nanoparticle-Embedded Fe/N/S Codoped Carbon Materials from Oily Sludge for Efficient CO₂ Capture

Liu

Shao

2022

ACS EST Eng.

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Oily sludge generated from the modern petrochemical industry is a largescale hazardous solid waste. Pyrolysis with efficient catalysts is considered as a promising technology to convert the oily sludge into value-added chemicals or fuels without significant impact on the environment, but the solid char with spent catalysts does not find an application. In this study, the solid char obtained from catalytic pyrolysis of the oily sludge is applied as an adsorbent for CO 2 capture. The char can be regarded as MgO nanoparticleembedded Fe/N/S codoped carbon (MgO•FeO x @NSC) based on its structure and composition. MgO•FeO x @NSC presents a favorable performance toward CO 2 capture. The maximum CO 2 adsorption capacity is 4.57 mol/kg, and this value remains unchanged for more than 10 cycles of reuse. The mechanism for CO 2 capture is analyzed with Fouriertransform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS). Physical adsorption and chemical interaction are identified as the primary contributors to the CO 2 adsorption with MgO•FeO x @NSC, in which MgO, nitride-N, and sulfide-S are the main species contributing to the chemical interactions between CO 2 and MgO•FeO

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Section: Mg(oh)mentioning

confidence: 74%

Section: Results and Discussionmentioning

confidence: 99%

Facile Synthesis of MgO Nanoparticle-Embedded Fe/N/S Codoped Carbon Materials from Oily Sludge for Efficient CO₂ Capture

Liu

Shao

2022

ACS EST Eng.

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“…Biochars are easy to incorporate into building materials due to their high porosity and specific surface area properties 25 . These properties are affected by the raw material of biochar, pyrolysis temperature, and time 26 . In particular, owing to their excellent chemical stability, biochars have been integrated with cementitious materials in various studies 27,28 .…”

Section: Introductionmentioning

confidence: 99%

“…25 These properties are affected by the raw material of biochar, pyrolysis temperature, and time. 26 In particular, owing to their excellent chemical stability, biochars have been integrated with cementitious materials in various studies. 27,28 Therefore, the application of biochars to interior finishing materials can improve the thermal performance of building materials.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of energy consumption in apartment buildings with biochar and phase‐change material aggregate‐applied artificial stone finishing materials

Kim

Yang

Yun

et al. 2022

Intl J of Energy Research

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Artificial stones for architectural finishing satisfy the aesthetic needs of building occupants and can be easily mixed with other materials. In this study, the thermal inertia of specimens prepared using lightweight aggregate vacuum impregnated with n-octadecane was improved, and the thermal conductivity was improved by mixing biochar having micropores with cement. The applicability of the specimens to apartment buildings in various climatic zones was analyzed. The specimens showed noPCM leakage and were stable in terms of strength and morphology. In addition, they exhibited low thermal conductivity depending on the use of biochar. Simulation results revealed that apartments in the climatic zone with the highest average annual temperature exhibited the highest reduction in cooling energy. The monthly cooling energy reduction was generally evenly distributed in the Bsh, Cfa, and Cfb regions, and the cooling energy decrease was concentrated in cold climate regions, such as in the Dfa and Dfb regions. In the Dfa region, there is a risk of heating energy increasing when the seasons change, and in regions having extreme climatic conditions (ie, excessively hot or cold), the PCM does not change its phase appropriately. Therefore, the application of a PCM appropriate for the climate can help effectively save energy consumption in buildings. Highlights• Biochar and PCM can contribute to the thermoregulation of buildings and increase indoor thermal comfort.• Artificial stone for interior finishing of buildings that integrates biochar and PCM was manufactured.• Building energy simulations for eight climatic zones were performed.• Interior finishes incorporating biochar and PCM contribute to building energy savings.

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“…Producing biochar using waste biomass as a precursor is an effective process for converting waste into a high-value-added product [ 37 ]. The use of biomass has emerged as a promising low-cost solution [ 38 ] for the treatment and management of large volumes of agro-industrial wastes [ 39 , 40 ]. In this sense, biochar comes from a wide range of biomass, such as fruit, legume peels and husks [ 41 , 42 , 43 , 44 , 45 ], bagasse/pomace, fruit pit and shells [ 46 , 47 , 48 , 49 , 50 ], forestry wastes and pruning [ 51 , 52 , 53 ], sludge [ 54 , 55 ] and animal manure [ 56 , 57 ].…”

Section: Introductionmentioning

confidence: 99%

Valorization of Different Fractions from Butiá Pomace by Pyrolysis: H2 Generation and Use of the Biochars for CO2 Capture

et al. 2022

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This work valorizes butiá pomace (Butia capitata) using pyrolysis to prepare CO2 adsorbents. Different fractions of the pomace, like fibers, endocarps, almonds, and deoiled almonds, were characterized and later pyrolyzed at 700 °C. Gas, bio-oil, and biochar fractions were collected and characterized. The results revealed that biochar, bio-oil, and gas yields depended on the type of pomace fraction (fibers, endocarps, almonds, and deoiled almonds). The higher biochar yield was obtained by endocarps (31.9%wt.). Furthermore, the gas fraction generated at 700 °C presented an H2 content higher than 80%vol regardless of the butiá fraction used as raw material. The biochars presented specific surface areas reaching 220.4 m2 g−1. Additionally, the endocarp-derived biochar presented a CO2 adsorption capacity of 66.43 mg g−1 at 25 °C and 1 bar, showing that this material could be an effective adsorbent to capture this greenhouse gas. Moreover, this capacity was maintained for 5 cycles. Biochars produced from butiá precursors without activation resulted in a higher surface area and better performance than some activated carbons reported in the literature. The results highlighted that pyrolysis could provide a green solution for butiá agro-industrial wastes, generating H2 and an adsorbent for CO2.

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Recent advances in developing engineered biochar for CO2 capture: An insight into the biochar modification approaches

Cited by 93 publications

References 227 publications

Facile Synthesis of MgO Nanoparticle-Embedded Fe/N/S Codoped Carbon Materials from Oily Sludge for Efficient CO₂ Capture

Facile Synthesis of MgO Nanoparticle-Embedded Fe/N/S Codoped Carbon Materials from Oily Sludge for Efficient CO₂ Capture

Evaluation of energy consumption in apartment buildings with biochar and phase‐change material aggregate‐applied artificial stone finishing materials

Valorization of Different Fractions from Butiá Pomace by Pyrolysis: H2 Generation and Use of the Biochars for CO2 Capture

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Recent advances in developing engineered biochar for CO2 capture: An insight into the biochar modification approaches

Cited by 93 publications

References 227 publications

Facile Synthesis of MgO Nanoparticle-Embedded Fe/N/S Codoped Carbon Materials from Oily Sludge for Efficient CO2 Capture

Facile Synthesis of MgO Nanoparticle-Embedded Fe/N/S Codoped Carbon Materials from Oily Sludge for Efficient CO2 Capture

Evaluation of energy consumption in apartment buildings with biochar and phase‐change material aggregate‐applied artificial stone finishing materials

Valorization of Different Fractions from Butiá Pomace by Pyrolysis: H2 Generation and Use of the Biochars for CO2 Capture

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Product

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Facile Synthesis of MgO Nanoparticle-Embedded Fe/N/S Codoped Carbon Materials from Oily Sludge for Efficient CO₂ Capture

Facile Synthesis of MgO Nanoparticle-Embedded Fe/N/S Codoped Carbon Materials from Oily Sludge for Efficient CO₂ Capture