N-doped porous carbon derived from macadamia nut shell for CO2 adsorption

Fuel Processing Technology, Journal Year: 2023, Volume and Issue: 249, P. 107854 - 107854

Published: May 29, 2023

Language: Английский

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Biosorption of Congo Red dye from aqueous solutions using pristine biochar and ZnO biochar from green pea peels

Process Safety and Environmental Protection, Journal Year: 2022, Volume and Issue: 189, P. 636 - 651

Published: Dec. 5, 2022

Language: Английский

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Kinetic and mechanistic study of CO2 adsorption on activated hydrochars

Journal of CO2 Utilization, Journal Year: 2024, Volume and Issue: 81, P. 102716 - 102716

Published: Feb. 22, 2024

Four activated hydrochars (AHCs) were obtained by hydrothermal carbonization of pine sawdust followed physical and chemical activation in mild conditions. The effects the activating agents on porous structure AHCs analysed using nitrogen adsorption isotherms. Their CO2 capacity was assessed means carbon dioxide isotherms at 25 50 ºC thermogravimetry, compared with a commercial (AC). SBET values greater than 2000 m2/g obtained. A narrow micropore volume 0.392 cm3/g for hydrochar KHCO3. highest uptake 3.3 mmol/g (145.2 mg/g) room temperature (25 ºC) Three kinetic models (pseudo-first, pseudo-second fractional order Avrami's models) used to examine rate parameters uptake, model giving most accurate prediction adsorption. intraparticle diffusion Boyd's film-diffusion applied identify mechanism.

Language: Английский

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Competitive transport and adsorption of CO2/H2O in the graphene nano-slit pore: A molecular dynamics simulation study

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 353, P. 128394 - 128394

Published: June 12, 2024

Language: Английский

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Recent progress on advanced solid adsorbents for CO2 capture: From mechanism to machine learning

Materials Today Sustainability, Journal Year: 2024, Volume and Issue: 27, P. 100900 - 100900

Published: June 29, 2024

Language: Английский

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Synthesis, characterization, and gas adsorption performance of an efficient hierarchical ZIF-11@ZIF-8 core–shell metal–organic framework (MOF)

Separation and Purification Technology, Journal Year: 2022, Volume and Issue: 307, P. 122679 - 122679

Published: Nov. 29, 2022

Language: Английский

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Natural Products Derived Porous Carbons for CO₂ Capture

Advanced Science, Journal Year: 2023, Volume and Issue: 10(36)

Published: Oct. 31, 2023

Abstract As it is now established that global warming and climate change are a reality, international investments pouring in rightfully so for mitigation. Carbon capture separation (CCS) therefore gaining paramount importance as considered one of the powerful solutions warming. Sorption on porous materials promising alternative to traditional carbon dioxide (CO 2 ) technologies. Owing their sustainable availability, economic viability, important recyclability, natural products‐derived carbons have emerged favorable competitive CO sorption. Furthermore, fabrication high‐quality value‐added functional carbon‐based using renewable precursors waste an environmentally friendly approach. This review provides crucial insights analyses enhance understanding application capture. Various methods synthesis carbon, structural characterization, parameters influence sorption properties discussed. The also delves into utilization molecular dynamics (MD), Monte Carlo (MC), density theory (DFT), machine learning techniques simulating adsorption validating experimental results. Lastly, future outlook research directions progressing use

Language: Английский

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Durable superhydrophobic/superoleophilic melamine foam based on biomass-derived porous carbon and multi-walled carbon nanotube for oil/water separation

Scientific Reports, Journal Year: 2023, Volume and Issue: 13(1)

Published: March 18, 2023

In the present study, fabrications of two eco-friendly superhydrophobic/superoleophilic recyclable foamy-based adsorbents for oil/water mixture separation were developed. Hierarchically biomass (celery)-derived porous carbon (PC) and multi-walled nanotube (MWCNT) firstly synthesized loaded on pristine melamine foam (MF) by simple dip-coating approach combining silicone adhesive to create superhydrophobic/superoleophilic, recyclable, reusable three-dimensional structure. The prepared samples have a large specific surface area 240 m2/g (MWCNT), 1126 (PC), good micro-mesoporous frameworks. water contact angle (WCA) values as-prepared foams, PC/MF MWCNT/MF, not only 159.34° ± 1.9° 156.42° 1.6°, respectively but also had oil (OCA) equal 0° wide range oils organic solvents. Therefore, MWCNT/MF exhibited superhydrophobicity superoleophilicity properties, which can be considered effective in separations. this context, foams kind different solvents shown superior performance ranges 54-143 g/g 46-137 respectively, suggesting new material separating spills. Also, outstanding recyclability reusability these structures ten adsorption-squeezing cycles indicated that WCA sorption capacity has appreciably changed after soaking into acidic (pH = 2) alkaline 12) as well saline (3.5% NaCl) solutions. More importantly, chemical durability superhydrophobic made them opportunities use harsh conditions oil-spill cleanup.

Language: Английский

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Yield prediction and optimization of biomass-based products by multi-machine learning schemes: Neural, regression and function-based techniques

Energy, Journal Year: 2023, Volume and Issue: 283, P. 128546 - 128546

Published: July 25, 2023

Language: Английский

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Capillary Evaporation on High‐Dense Conductive Ramie Carbon for Assisting Highly Volumetric‐Performance Supercapacitors

Small, Journal Year: 2023, Volume and Issue: 19(42)

Published: June 13, 2023

Conductive biomass carbon possesses unique properties of excellent conductivity and outstanding thermal stability, which can be widely used as conductive additive. However, building the high-dense with highly graphitized microcrystals at a lower carbonization temperature is still major challenge because structural disorder low crystallinity source material. Herein, simple capillary evaporation method to efficiently build ramie (hd-CRC) higher tap density 0.47 cm3 g-1 than commercialized Super-C45 (0.16 ) reported. Such hd-CRC achieve high electrical 94.55 S cm-1 yield strength 92.04 MPa , (83.92 MPa). As demonstration, based symmetrical supercapacitors possess volumetric energy 9.01 Wh L-1 25.87 kW much more those (5.06 19.30 ). Remarkably, flexible package supercapacitor remarkably presents leakage current 10.27 mA equivalent series resistance 3.93 mΩ. Evidently, this work meaningful step toward from traditional graphite carbon, greatly promoting highly-volumetric-performance supercapacitors.

Language: Английский

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