Activated carbon derived from waste orange and lemon peels for the adsorption of methyl orange and methylene blue dyes from wastewater

Heliyon, Journal Year: 2022, Volume and Issue: 8(8), P. e09930 - e09930

Published: July 10, 2022

The study of adsorbent behaviour in laboratory conditions helps to predict the adsorption process a large industrial scale. In this study, orange and lemon peels-derived activated carbon (OLPAC) was successfully synthesized using phosphoric acid. Characterization performed on OLPAC material used for removal methyl (MO) methylene (MB) dyes from wastewater. results scanning electron microscope N2 adsorption/desorption examination affirmed that prepared nanocomposite is permeable, which an advantage efficient contaminants. Optimal batch were investigated one-factor time approach different (Dye concentration 50–200 mg L−1, pH 2–10, mass 0.010–0.8, contact 5–180 min. isotherm equilibrium data examined by Langmuir, Freundlich, Temkin, model. As shown correlation coefficient (R2), best described Langmuir isotherms with maximum capacities 33 38 g─1 blue, respectively. Adsorption kinetic pseudo-second-order model suggests MO MB chemisorption mechanism. method applicable real wastewater samples, satisfactory percentages OM (96 98 %). show inexpensive biosorbent utilized removing blue

Language: Английский

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Fabrication of multifunctional biomass-based aerogel with 3D hierarchical porous structure from waste reed for the synergetic adsorption of dyes and heavy metal ions

Chemical Engineering Journal, Journal Year: 2022, Volume and Issue: 451, P. 138934 - 138934

Published: Sept. 2, 2022

Language: Английский

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Biomass-derived activated carbon nanocomposites for cleaner production: A review on aspects of photocatalytic pollutant degradation

Journal of Cleaner Production, Journal Year: 2023, Volume and Issue: 419, P. 138181 - 138181

Published: July 25, 2023

Language: Английский

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A comprehensive review on LDH-based catalysts to activate persulfates for the degradation of organic pollutants

npj Clean Water, Journal Year: 2023, Volume and Issue: 6(1)

Published: April 25, 2023

Abstract Degradation of organic contaminants into less toxic substances is the best option to remove these compounds rather than using conventional techniques. The sulfate radical-based-advanced oxidation process an effective strategy that degrades by activating peroxymonosulfate (PMS). Such a generates singlet oxygen ( 1 O 2 ), hydroxyl $$^ \bullet \!{{{\mathrm{OH}}}}$$ ∙OH and $${{{\mathrm{SO}}}}_4^{ \bullet\! - }$$ xmlns:mml="http://www.w3.org/1998/Math/MathML">SO4∙− ) radicals. \!- distinguished its high selectivity activity toward degradation contaminates compared other Various catalysts are employed in PMS activation including layered doubled hydroxides (LDHs), which characterized their facile synthesis catalytic activity. This review article first attempt compile recent progress common pollutants aromatic compounds, pharmaceutical residues, dyes via LDH-based catalysts. pathways, reaction parameters’ influence, stability LDHs, comparisons between different investigated this work.

Language: Английский

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Fabrication and characterization of MXene/carbon composite-based nanofibers (MXene/CNFs) membrane: An efficient adsorbent material for removal of Pb+2 and As+3 ions from water

Process Safety and Environmental Protection, Journal Year: 2023, Volume and Issue: 191, P. 462 - 471

Published: Feb. 6, 2023

Language: Английский

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Preparation and Physio–Chemical characterisation of activated carbon derived from prosopis juliflora stem for the removal of methylene blue dye and heavy metal containing textile industry effluent

Journal of Cleaner Production, Journal Year: 2023, Volume and Issue: 397, P. 136579 - 136579

Published: Feb. 24, 2023

Language: Английский

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Metal–organic framework-based materials: emerging high-efficiency catalysts for the heterogeneous photocatalytic degradation of pollutants in water

Environmental Science Water Research & Technology, Journal Year: 2023, Volume and Issue: 9(3), P. 669 - 695

Published: Jan. 1, 2023

Water pollution has become one of the most important global environmental problems, wherein various toxic and persistent organic pollutants in water pose a major threat to environment.

Language: Английский

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Preparation of double functional carbon-based ZnO derived from rape straw for dye wastewater treatment

Journal of Water Process Engineering, Journal Year: 2023, Volume and Issue: 52, P. 103588 - 103588

Published: Feb. 23, 2023

Language: Английский

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Sandwich-like construction of a new aminated chitosan Schiff base for efficient removal of Congo red

Applied Water Science, Journal Year: 2023, Volume and Issue: 13(2)

Published: Jan. 18, 2023

Abstract Herein, a novel sandwich-like α -ketoglutaric acid Schiff base-aminated chitosan composite ( -kGl-AmCsSB) was fabricated by reacting and aminated chitosan. The as-fabricated -kGl-AmCsSB inspected diversified characterization tools to determine its morphology, surface charge, chemical composition as well define the linkage pathway between -kGl AmCs. SEM images demonstrated spongy network of AmCs with interconnected pores structure which turned quite rough due free amine groups Notably, XPS FTIR spectra suggested group experimental results implied superior adsorption efficiency Congo red (CR) onto since maximum capacity q max ) reached 434.78 mg/g at 25 °C pH 3. Based on kinetics data, CR followed pseudo-second-order model. Furthermore, D-R model infers that occurred via physical interactions E value < 8 kJ/mol. recyclability test implemented for five cycles R% > 72%. More importantly, mechanism proposed discussed. Ultimately, exhibited advanced performance toward along excellent reusability. these results, we recommend more modifications exploiting remarkable advantages applying it large scale.

Language: Английский

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Methylene blue and methyl orange removal from wastewater by magnetic adsorbent based on activated carbon synthesised from watermelon shell

Desalination and Water Treatment, Journal Year: 2024, Volume and Issue: 317, P. 100040 - 100040

Published: Jan. 1, 2024

The novel magnetic nanocomposites activated carbon (MWMSC) was prepared from (AC), produced watermelon shell through pyrolysis method. effect of various adsorption parameters such as contact time, pH the dye solution and MWMSC dose studied. optimum conditions were found to be time 60 40 min (MB & MO), 6.0 3.0 for MB MO, adsorbent 100 mg MO) respectively. adsorbents characterized by FTIR, BET, TEM, SEM EDX analysis techniques. Adsorption isotherms used test experimental data result is well-fitted Langmuir model with a maximum capacity MO 303.30 345.70 g−1. kinetics pseudo second-order model. thermodynamics revealed that thermodynamically favourable, spontaneous exothermic in nature. method applicable real wastewater samples, 99% removal MO. results this study show an inexpensive biosorbent successfully utilized removing methylene blue methyl orange dyes wastewater.

Language: Английский

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