Isothermal and kinetic screening of methyl red and methyl orange dyes adsorption from water by Delonix regia biochar-sulfur oxide (DRB-SO)

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: June 12, 2024

Abstract In this study, Delonix regia seed pods (DRSPs) as a locally available material were refluxed in 90% H 2 SO 4 to yield novel D. biochar-sulfur oxide (DRB-SO). FTIR, BET, BJH, SEM, EDX, XRD, DSC and TGA applied investigate the characterizations of prepared DRB-SO. Various adsorption parameters like pH effect, dye concentration adsorbent dose, reaction time isotherm kinetic study carried out explain process methyl orange (MO) red (MR) onto Langmuir's model perfectly explained surface DRB-SO monolayer. The maximum efficiency was (98%) (99.6%) for MO MR respectively which attained after 150 min with an dose 0.75 g/L. pseudo-second-order best dyes by highest observed amount high 144.9 mg/g 285.7 dye, comparable other reported materials based on activated carbon materials. All outcomes signposted prodigious perspective fabricated biochar composite wastewater treatment. Using regenerating through acid–base regeneration process, six cycles adsorption/desorption examined. Over course cycles, there minor decrease desorption processes. Also, it revealed what most plausible mechanism absorb ions dyes.

Language: Английский

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Effect of Biochar Characteristics on Freeze-thaw Durability of Biochar-cement Composites

Journal of Building Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 111959 - 111959

Published: Feb. 1, 2025

Language: Английский

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Microwave-induced degradation of Congo red dye in the presence of 2D Ti3C2Tx MXene as a catalyst

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Jan. 3, 2025

In this research, the degradation of Congo red (CR) dye, as an organic pollutant in water, was investigated using microwave-induced reaction technology. This technology requires a microwave-absorbing catalyst and 2D Ti

Language: Английский

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Central composite design and mechanism of antibiotic ciprofloxacin photodegradation under visible light by green hydrothermal synthesized cobalt-doped zinc oxide nanoparticles

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: April 21, 2024

Abstract In this research, different Co 2+ doped ZnO nanoparticles (NPs) were hydrothermally synthesized by an environmentally friendly, sustainable technique using the extract of P. capillacea for first time. Co-ZnO was characterized and confirmed FTIR, XPS, XRD, BET, EDX, SEM, TEM, DRS UV–Vis spectroscopy, TGA analyses. Dislocation density, micro strains, lattice parameters volume unit cell measured XRD results. suggests that average size these NPs between 44.49 65.69 nm with a hexagonal wurtzite structure. Tauc plot displayed optical energy bandgap (3.18) slowly declines doping (2.96 eV). Near complete removal ciprofloxacin (CIPF) antibiotic attained Green 5% Hy-Co-ZnO in existence visible LED light which exhibited maximum degradation efficiency (99%) within 120 min 30 ppm CIPF initial concentration. The photodegradation mechanism followed Pseudo-first-order kinetics. improved photocatalytic performance toward 3 cycles. experiments designed RSM (CCD) method selected such as catalyst dosage, shaking speed, pH. maximal (96.4%) achieved under optimum conditions 39.45 60.56 mg 177.33 rpm speed pH 7.57.

Language: Английский

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Fabrication of date palm kernel biochar-sulfur (DPKB-S) for super adsorption of methylene blue dye from water

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: March 21, 2024

Abstract A novel form of biochar was created by dehydration Date palm kernel with 85% sulfuric acid. It examined how the newly produced (DPKB-S) affected aqueous solution's capacity to extract Methylene Blue (MB) dye. The prepared DPKB-S categorized BET, BJH, FT-IR, SEM, EDX, DSC, and TGA analyses. ideal pH for MB dye adsorption is 8. With 0.75 g L −1 an initial concentration 50 ppm dye, Palm Kernel Biochar-Sulfur had highest removal percentage 100%. Langmuir Freundlich isotherm models were used investigate collected data. model that best covers in at low concentrations (0.75–1.25 ) high (1.5–1.75 ). maximum ( Q m 1512.30 mg . Furthermore, a variety error function applied derived data, including Marquardt’s percent standard deviation (MPSD), sum absolute errors (EABS), squared (ERRSQ), root mean square (RMS), Chi-square (X 2 ), average relative (ARE), (APE), hybrid (HYBRID). Kinetic data calculated intraparticle diffusion (IPD), pseudo-second-order (PSO), pseudo-first-order (PFO), film (FD) models. PSO rate strong correlation R = 1.00) largely regulated rate. mechanism based on principle these positively charged dyes are attracted electrostatic attraction forces due growth number negatively regions basic value. According results, shows promise as affordable competent adsorbent can be frequently without experiencing discernible decrease efficiency.

Language: Английский

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Optimisation of biochar dose in anaerobic co-digestion of green algae and cattle manure using artificial neural networks and response surface methodology

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 493, P. 152750 - 152750

Published: June 2, 2024

Language: Английский

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Green algae Ulva lactuca-derived biochar-sulfur improves the adsorption of methylene blue from water

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: May 21, 2024

Abstract The present investigation explores the efficacy of green algae Ulva lactuca biochar-sulfur (GABS) modified with H 2 SO 4 and NaHCO 3 in adsorbing methylene blue (MB) dye from aqueous solutions. impact solution pH, contact duration, GABS dosage, initial MB concentration on adsorption process are all methodically investigated this work. To obtain a thorough understanding dynamics, study makes use several kinetic models, including pseudo-first order pseudo-second addition to isotherm models like Langmuir, Freundlich, Tempkin, Dubinin–Radushkevich. findings reveal that capacity at equilibrium ( q e ) reaches 303.78 mg/g for dose 0.5 g/L an 200 mg/L. Notably, Langmuir model consistently fits experimental data across different doses, suggesting homogeneous onto monolayer surface. potential as efficient adsorbent extraction solutions is highlighted by discovery. study’s provides robust framework intricacies GABS. By elucidating various variables process, research contributes valuable insights can inform design wastewater treatment comprehensive analysis presented serves solid foundation further development field adsorption-based water technologies.

Language: Английский

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Kinetics, central composite design and artificial neural network modelling of ciprofloxacin antibiotic photodegradation using fabricated cobalt-doped zinc oxide nanoparticles

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Jan. 10, 2025

Abstract Cobalt-doped zinc oxide nanoparticles were fabricated and examined in this study as a potential photocatalyst for the antibiotic ciprofloxacin (CIPF) degradation when exposed to visible LED light. The Co-precipitation technique created that 5, 10, 15% Co-loaded. Different known techniques have been used characterize synthesized ZnO cobalt-doped nanoparticles. Compared other nanoparticles, experiments showed 10% very effective catalyst CIPF photodegradation. According XRD, these NPs hexagonal Wurtzite structure with an average size of between 38.47 48.06 nm. Tauc plot displayed optical energy band-gap (3.21) slowly declines Co doping (2.75 eV). enhanced photocatalytic activity which avoids electron-hole recombination, is brought on by implantation Co. Within 90 min, 30 mg/L solution was destroyed (> 99%). kinetics studies demonstrated first-order model, R 2 = 0.9703, appropriate illuminating pace reaction quantity elimination. recycled performance toward 3 cycles same efficiency. Furthermore, optimization using Central composite design (CCD) also studied. optimal parameters pH 6.486, 134.39 rpm shaking speed, 54.071 mg dose, 31.04 ppm initial concentration resulted highest efficiency (93.99%). Artificial neural networks (ANN) simulate experimental data. backpropagation train 152 input-output patterns. After experimenting various configurations, best results correlation value ( ) 0.9780 data validation obtained three-hidden layered network included five, eight neurons, respectively.

Language: Английский

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Optimization strategy of Co3O4 nanoparticles in biomethane production from seaweeds and its potential role in direct electron transfer and reactive oxygen species formation

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: March 1, 2024

In the present study, three process parameters optimization were assessed as controlling factors for biogas and biomethane generation from brown algae Cystoceira myrica substrate using RSM first time. The biomass amount, Co

Language: Английский

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Box-Behnken design optimization of 2D Ti3C2Tx MXene nanosheets as a microwave-absorbing catalyst for methylene blue dye degradation

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 156969 - 156969

Published: Oct. 1, 2024

Language: Английский

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