Numerical analysis of the micropore structure of activated carbons focusing on optimum CO2 adsorption

Article Chemistry, Physical

Effective nitrogen and sulfur co-doped porous carbonaceous CO2 adsorbents derived from amino acid

Jiawei Shao et al.

Summary: In this study, N, S co-doped porous carbons were synthesized using a two-step synthesis strategy, showing promising CO2 adsorption performance and application prospects.

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS (2022)

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Article Energy & Fuels

A study on pore formation of high surface area activated carbon prepared by microwave-induced plasma with KOH (MiWP-KOH) activation: Effect of temperature-elevation rate

Purichaya Kuptajit et al.

Summary: The study focuses on the effect of temperature-elevation rate on pore formation in activated carbon synthesized using MiWP-KOH activation. The results indicate that rapid temperature elevation rate is crucial for achieving a micropore-dominating structure, with significantly higher surface area compared to conventional heating methods.

CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION (2021)

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Review Chemistry, Applied

Influence of surface modification on selective CO2 adsorption: A technical review on mechanisms and methods

Ben Petrovic et al.

Summary: De-carbonising civilization requires vast knowledge and innovation, with some industries relying on carbon capture and storage technologies. Solid sorbents for CO2 capture are gaining attention for their cost-effectiveness, low energy requirements, and wide applicability, yet the search for optimal sorbents remains a challenge.

MICROPOROUS AND MESOPOROUS MATERIALS (2021)

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Review Green & Sustainable Science & Technology

Review on biomass feedstocks, pyrolysis mechanism and physicochemical properties of biochar: State-of-the-art framework to speed up vision of circular bioeconomy

Gajanan Sampatrao Ghodake et al.

Summary: Biochar is a solid carbon-rich material produced by thermochemical conversion of biomass under an inert atmosphere. It can be produced at different scales and used in various fields such as soil amendment and agricultural sustainability. The sustainable production practices and multi-functionality make biochar a promising candidate.

JOURNAL OF CLEANER PRODUCTION (2021)

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Review Environmental Sciences

CO2 capture by adsorption on biomass-derived activated char: A review

Chirag Goel et al.

Summary: This paper reviews the method of carbon capture and storage, specifically the CO2 adsorption capabilities of biomass-derived hydrochar, and discusses the various factors affecting CO2 uptake.

SCIENCE OF THE TOTAL ENVIRONMENT (2021)

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Article Chemistry, Physical

Controllable synthesis of spherical carbon particles transition from dense to hollow structure derived from Kraft lignin

Kiet Le Anh Cao et al.

Summary: Tailored synthesis of carbon particles from biomass as raw material is beneficial for various applications of carbon materials. By adjusting the KOH concentration, the shape and structure of carbon particles can be controlled effectively.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2021)

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Article Engineering, Environmental

Production of low-price carbon for removal of aluminium ions in potable water

Safaa El-Nahas et al.

Summary: This research utilized sugarcane bagasse activated carbon to remove aluminum ions from water supplies, showing high efficiency, eco-friendliness, and low cost.

JOURNAL OF ENVIRONMENTAL ENGINEERING AND SCIENCE (2021)

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Article Environmental Sciences

Efficient nitrogen doped porous carbonaceous CO2 adsorbents based on lotus leaf

Qian Li et al.

Summary: In this study, waste biomass lotus leaf was converted into N-doped porous carbonaceous CO2 adsorbents with high nitrogen content and advanced porous structure. The sorbents exhibited excellent CO2 adsorption abilities, highlighting the significant potential of using waste plant resources for sustainable CO2 capture and other applications.

JOURNAL OF ENVIRONMENTAL SCIENCES (2021)

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Article Chemistry, Physical

An Evaluation of the Impact of the Amount of Potassium Hydroxide on the Porous Structure Development of Activated Carbons

Miroslaw Kwiatkowski et al.

Summary: This study evaluates the impact of potassium hydroxide on the porous structure of activated carbons derived from nut shells and demonstrates the potential of producing activated carbons from waste materials. Activated carbons at the activator/char mass ratio R = 4 exhibited the most developed porous structure, with pecan shell activated carbons showing the most homogeneous surface. Advanced methods are necessary to analyze the porous structure for selecting appropriate production technology and conditions.

MATERIALS (2021)

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Article Chemistry, Physical

Analysis of the Effect of Conditions of Preparation of Nitrogen-Doped Activated Carbons Derived from Lotus Leaves by Activation with Sodium Amide on the Formation of Their Porous Structure

Miroslaw Kwiatkowski et al.

Summary: This study used a numerical clustering-based adsorption analysis method to investigate the impact of activator amount and activation temperature on the porous structure of nitrogen-doped activated carbons. It was found that activator amount has a greater influence on porous structure formation, with optimal values observed at a mass ratio of R = 2. High R values led to a significant decrease in porous structure parameters, indicating uncontrolled wall firing between micropores.

MATERIALS (2021)

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Article Engineering, Environmental

The synergistic effects of surface functional groups and pore sizes on CO2 adsorption by GCMC and DFT simulations

Hongyu Chen et al.

Summary: The study examined the capture performance of CO2 molecules on M-doped functionalized-graphite surfaces with varying pore sizes using GCMC simulation and DFT. Results showed that surface functional groups and pore sizes play significant roles in CO2 adsorption behavior, with phosphorus-doped surfaces exhibiting the most prominent influence.

CHEMICAL ENGINEERING JOURNAL (2021)

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Review Environmental Sciences

A review on application of activated carbons for carbon dioxide capture: present performance, preparation, and surface modification for further improvement

Ammar Ali Abd et al.

Summary: The focus of this review is on the adsorption properties of activated carbons towards CO2 and related research. Studies have shown that the adsorption efficiency of activated carbons is influenced by pore size/shape and surface chemistry, with surface modifications such as NH3, amines, and metal oxides enhancing CO2 adsorption performance. Additionally, the adsorption performance of activated carbons under humid conditions is also highlighted.

ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH (2021)

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Article Green & Sustainable Science & Technology

Waste-polystyrene foams-derived magnetic carbon material for adsorption and redox supercapacitor applications

Natalia C. F. Machado et al.

Summary: This study demonstrates a novel approach of utilizing expanded polystyrene waste to produce high-performance magnetic activated carbons, which show great potential in adsorbing organic contaminants and functioning as electrodes in redox supercapacitors.

JOURNAL OF CLEANER PRODUCTION (2021)

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Article Chemistry, Physical

Computer Analysis of the Effect of Activation Temperature on the Microporous Structure Development of Activated Carbon Derived from Common Polypody

Miroslaw Kwiatkowski et al.

Summary: This study presents the computer analysis results of the microporous structure development of activated carbon derived from common polypody leaves at different activation temperatures. The unconventional LBET method was used for porous structure analysis, showing the highest CO2 adsorption capacity at 900 degrees Celsius. The LBET method comprehensively and reliably describes the porous structure of activated carbon material.

MATERIALS (2021)

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Article Multidisciplinary Sciences

Evolution of physico-chemical properties of Dicranopteris linearis-derived activated carbon under various physical activation atmospheres

Nga T. Mai et al.

Summary: This study focuses on the physical activation using CO2 and steam agents to improve the physicochemical properties of activated carbon derived from Dicranopteris linearis. The relative proportion of CO2 and steam heavily influences the structure of the activated chars. The increase in steam proportion resulted in a proportional increase in the total specific surface area of the activated chars, making them comparable to commercial products and potentially suitable for industries that require high rigidity products such as pharmaceutical and cosmetic sectors.

SCIENTIFIC REPORTS (2021)

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Article Chemistry, Multidisciplinary

Enhancing the chloramphenicol sensing performance of Cu-MoS2 nanocomposite-based electrochemical nanosensors: roles of phase composition and copper loading amount

Nguyen Tuan Anh et al.

Summary: The rational design of nanomaterials for electrochemical nanosensors from the perspective of structure-property-performance relationships is crucial in improving the analytical performance towards residual antibiotics in food. By investigating the effects of crystalline phase and copper loading amount on Cu-MoS2 nanocomposite-based electrochemical sensors for the antibiotic chloramphenicol (CAP), the design of Cu-MoS2 nanocomposites with appropriate copper loading amounts can significantly enhance their electrochemical responses for CAP. Under optimized conditions, the Cu-MoS2 nanocomposite-based electrochemical nanosensor showed remarkable sensing performance for CAP, highlighting the importance of nanoelectrode designs in analytical performance of electrochemical nanosensors.

RSC ADVANCES (2021)

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Article Biotechnology & Applied Microbiology

Mesoporous activated carbon yielded from pre-leached cassava peels

R. Kayiwa et al.

Summary: This study investigated the preparation of activated carbon from agricultural waste cassava peels, which achieved high surface area and mesoporous structure through pre-leaching with NaOH, KOH activation, and high temperature carbonization. The findings suggest that by controlling process conditions and increasing activation temperature, it is possible to produce highly porous activated carbon from cassava peels.

BIORESOURCES AND BIOPROCESSING (2021)

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Review Materials Science, Multidisciplinary

A review of charge storage in porous carbon-based supercapacitors

Xian-you Luo et al.

Summary: Porous carbon-based electrode materials are widely used in supercapacitors due to their stability, high surface area, and adjustable pore structure. Factors such as specific surface area, pore structure, surface heteroatoms, and electrode design all play significant roles in determining the performance of superca

NEW CARBON MATERIALS (2021)

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Article Engineering, Chemical