Microwave pyrolysis of waste biomass and synthesis of micro-mesoporous activated carbons: The role of textural properties for CO2 and textile dye adsorption

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 488, P. 150926 - 150926

Published: April 3, 2024

Hierarchical porous activated carbons (ACs) were efficiently synthesized in less than 2 min using microwaves and phosphoric acid (H3PO4), exhibiting excellent potential as adsorbent for carbon dioxide (CO2) Methylene Blue (MB). The method emphasizes the development of selective physicochemical textural properties crucial CO2 post-combustion capture textile dye removal from water, agricultural waste precursor to address environmental economic challenges associated with preparation ACs. Dielectric confirmed H3PO4 increased microwave absorption biomass. Employing a single-step method, resulting ACs exhibited large specific surface areas exceeding 1000 m2g−1, achieved relatively low energies (2.4 GJ ton-1). Sample 0.4H4 displayed area 1145 m2g−1 significant ultra-micropore (<0.7 nm) content, demonstrating uptake 4.1 2.8 mmolg−1 at 0 25 °C, high CO2/N2 selectivity (>38). sample rapid 5 efficient regeneration after 20 adsorption–desorption cycles. 0.3H3 developed mesoporosity 1217 3 treatment. maximum was 281 mgg−1 adsorption mechanisms involved diffusion into mesoporous matrix, electrostatic interactions, H-bonding between AC MB groups, π–π interactions. experimental data best fitted Freundlich model. results that have convert micro-mesoporous can be used wide range applications processing time reductions superior product qualities compared conventional technologies.

Language: Английский

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Studying the kinetics and removal mechanism of the methylene blue dye in a continuous adsorption process using prepared mesoporous materials

Water Practice & Technology, Journal Year: 2024, Volume and Issue: 19(7), P. 2799 - 2815

Published: June 25, 2024

ABSTRACT This study investigated the removal of a typical organic pollutant methylene blue (MB) dye from wastewater by prepared mesoporous SBA-15 adsorbent in continuous adsorption system (fixed-bed column). The structural and textural properties were determined using different characterization techniques. experiments assessed bed height effect, initial concentration, flow rate on breakthrough curve. kinetic constants curves obtained Thomas Yan models. results revealed that has an excellent efficiency for use system. findings explain MB achieved maximum uptake (84 mg/g) at 6 cm height, 0.5 mL/min rate, 30 mg/L concentration MB. can be efficiently regenerated calcination re-employed 5 times fixed-bed without significant loss its capacity solutions. As result, was as appropriate media to suggests is feasible effectively wastewater.

Language: Английский

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Graphene oxide impregnated activated carbon derived from coconut shell through hydrothermal carbonization for cationic dye removal: Adsorptive performance, kinetics, and chemistry of interaction

Journal of Cleaner Production, Journal Year: 2024, Volume and Issue: 437, P. 140655 - 140655

Published: Jan. 1, 2024

Language: Английский

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Waste to wealth: Facile activation of red mud waste and insights into industrial reactive dye removal from wastewater

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 481, P. 148373 - 148373

Published: Jan. 2, 2024

Language: Английский

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The role of Moringa oleifera in the development of alternative biofuels, under the concept of an integral one‐tree biorefinery: A minireview

Biofuels Bioproducts and Biorefining, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 18, 2025

Abstract The Moringa oleifera oil tree is commonly known as the ‘tree of life’ or ‘miracle tree’ owing to its multiple benefits for humans. different parts that make up this (leaves, seeds and bark) have been used treat various ailments, diseases wounds. However, in recent years being by scientific community obtain high value‐added products bioenergy sector. This review aims compile research works existing literature, which aim at development application added value These include extraction lipids present production biodiesel, activated carbon manufacture supercapacitors electrodes fuel cells, bio‐coagulant water purification, second‐generation bioethanol metallic nanoparticles. Furthermore, leaves are green heterogeneous catalysts well explored bio‐hydrogen production. main physicochemical properties compounds each mentioned along with variables these results obtained. It expected article will contribute strengthening carrying out new work focused on use M.

Language: Английский

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Facile construction of lignin-based network composite hydrogel for efficient adsorption of methylene blue from wastewater

International Journal of Biological Macromolecules, Journal Year: 2023, Volume and Issue: 253, P. 126688 - 126688

Published: Sept. 4, 2023

Language: Английский

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A focused review on lignocellulosic biomass-derived porous carbons for effective pharmaceuticals removal: Current trends, challenges and future prospects

Separation and Purification Technology, Journal Year: 2023, Volume and Issue: 330, P. 125356 - 125356

Published: Oct. 11, 2023

Language: Английский

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A response surface methodology approach for the removal of methylene blue dye from wastewater using sustainable and cost-effective adsorbent

Process Safety and Environmental Protection, Journal Year: 2024, Volume and Issue: 184, P. 129 - 150

Published: Feb. 3, 2024

Potable water availability is becoming increasingly challenging due to increasing level of global population and industrial revolution. The disproportionate use methylene blue (MB), particularly in applications, a growing concern its high resistance biodegradation propensity taint aquatic environments. In this study, we developed novel eco-friendly calcium oxide nanoparticles from eggshells fishbones (CaONPs-ES CaONPs-FB) decorated them on graphene (GO) surfaces. Both nanocomposites (CaONPs-ES@GO CaONPs-FB@GO) were characterized using state-art-instruments used for the removal MB aqueous solutions. transmission electron. Additionally, adsorptive performance CaONPs-ES@GO CaONPs-FB@GO their mechanisms interaction with investigated. BET, SEM/EDX, XPS results revealed that predominantly mesoporous, surface areas 112 m²/g 108 m²/g, respectively. temperature-dependent adsorption isotherms kinetics towards consistent Redlich-Peterson pseudo-second-order models, model demonstrated an similarity Freundlich more than Langmuir model, suggesting dominance heterogeneous multilayer mechanism. synthesized exhibited reusability stability (>70%) even after 10 successive adsorption-desorption cycles. Thermodynamic evaluations process was spontaneous, endothermic, physically driven. outstanding selective behaviour mixture containing MB/RhB MB/MO separation efficiency 99.10% 77.34% CaO-ES@GO, 61.23% 47.81% CaO-FB@GO particulate within primarily involved π-π interaction, hydrogen bonding, pore-filling, electrostatic attraction. cost analysis are economical treating large-scale application. Based statistical response methodology (RSM), contributing effects temperature adsorbent dosage, as well single effect pH, had most significant impact removal. demonstrate promising potential sustainable treatment.

Language: Английский

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New breakthrough in dye removal: Ultrafast removal of high concentration MB with biochar-based organic photocatalysts under indoor light (30W/m2) drive

Journal of Cleaner Production, Journal Year: 2024, Volume and Issue: 449, P. 141539 - 141539

Published: March 9, 2024

Language: Английский

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Machine learning screening of biomass precursors to prepare biomass carbon for organic wastewater purification: A review

Chemosphere, Journal Year: 2024, Volume and Issue: 362, P. 142597 - 142597

Published: June 16, 2024

Language: Английский

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