Pore Expansion of N-Doped Carbon as Support of Pd Catalyst for Accelerated Formic Acid Dehydrogenation DOI
Huiming Li, Junhuan Zhang, Yao Gui

et al.

Energy & Fuels, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 27, 2024

Formic acid offers a fascinating medium for hydrogen storage and transport, Pd@carbon catalysts are the most common catalyzing release of from formic (dehydrogenation). Biomass-derived carbon is advantageous over other supports in view cost, sustainability, easy modification. Nitrogen (N) doping can improve activity carbon-supported Pd catalyst, but concurrently deteriorated porosity inhibits it reaching full potential. Herein, pores N-doped wood-derived were expanded by novel alkali/air coactivation method so as to enhance further catalyst dehydrogenation. After investigation influence N conditions, porous (NPC) with developed (SABET = 956 m2·g–1, SAmeso 295 m2·g–1) was produced at optimized conditions. The Pd@NPC well-distributed ultrafine nanoparticles (0.4–1.4 nm) synthesized taking advantage both (especially mesopores) NPC. Subsequently, turnover frequency 446 h–1 obtained using this additive-free dehydrogenation 303 K. Thus, accelerated expanding biomass-derived that acted support catalysts.

Language: Английский

Advancements in application of modified biochar as a green and low-cost adsorbent for wastewater remediation from organic dyes DOI Creative Commons
Kosar Hikmat Hama Aziz,

Nazhad Majeed Fatah,

Khalid Taib Muhammad

et al.

Royal Society Open Science, Journal Year: 2024, Volume and Issue: 11(5)

Published: May 1, 2024

Synthetic organic dyes, which are resistant to biodegradation, pose a notable health risk, potentially leading cancer and respiratory infections. Researchers have addressed this concern by exploring physicochemical methods remove dyes from wastewater. A particularly promising solution involves modified biochar adsorbents, demonstrate high efficiency in dye removal. Biochar, charcoal-like material derived biomass pyrolysis, offers advantages such as low cost, eco-friendliness, reusability. Beyond its role sustainable soil remediation, proves effective removing wastewater after undergoing physical or chemical modification. Acid–base activation metal–heteroatom impregnation enhances biochar's adsorption capacity. This comprehensive review examines the attributes of biochar, common for production modification, impacts raw materials, pyrolysis temperature, heating rate residence time. It further elucidates mechanism removal assessing factors influencing efficiency, including feedstock, pH, particle size, initial concentration, dosage reaction explores challenges, opportunities, reusability regeneration treating also discusses recent advances using adsorption-based biochar. The ultimately advocates enhancing performance through post-modification.

Language: Английский

Citations

20
Microwave-induced degradation of Congo red dye in the presence of 2D Ti3C2Tx MXene as a catalyst DOI Creative Commons
Sait Elmas, Mohamed A. Hassaan, Gehan M. El‐Subruiti

et al.

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

Citations

3
Kinetics, central composite design and artificial neural network modelling of ciprofloxacin antibiotic photodegradation using fabricated cobalt-doped zinc oxide nanoparticles DOI Creative Commons

Asmaa I. Meky,

Mohamed A. Hassaan, Mohamed A. El-Nemr

et al.

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

Citations

2
Biochar regulates anaerobic digestion: Insights to the roles of pore size DOI

Zhang-Wei He,

Ai-Hua Li,

Cong-Cong Tang

et al.

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 480, P. 148219 - 148219

Published: Dec. 20, 2023

Language: Английский

Citations

30
Optimisation of biochar dose in anaerobic co-digestion of green algae and cattle manure using artificial neural networks and response surface methodology DOI
Halil Şenol, Emre Çolak, Emre Aşkın Elibol

et al.

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

Published: June 2, 2024

Language: Английский

Citations

10
Role of KOH-activated biochar on promoting anaerobic digestion of biomass from Pennisetum gianteum DOI
Qinghua Liu, Hongying Sun, Zhiman Yang

et al.

Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 353, P. 120165 - 120165

Published: Jan. 25, 2024

Language: Английский

Citations

9
Synthesis, characterization, optimization and application of Pisum sativum peels S and N-doping biochars in the production of biogas from Ulva lactuca DOI
Mohamed A. Hassaan, Marwa R. Elkatory, Mohamed A. El-Nemr

et al.

Renewable Energy, Journal Year: 2023, Volume and Issue: 221, P. 119747 - 119747

Published: Nov. 29, 2023

Language: Английский

Citations

18
Green algae Ulva lactuca-derived biochar-sulfur improves the adsorption of methylene blue from water DOI Creative Commons
Amany G. M. Shoaib, Huu Tạp Van, Dinh Trinh Tran

et al.

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

Citations

8
Experimental, predictive and RSM studies of H2 production using Ag-La-CaTiO3 for water-splitting under visible light DOI Creative Commons
Safaa Ragab, Marwa R. Elkatory, Mohamed A. Hassaan

et al.

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

Published: Jan. 10, 2024

Abstract Ag-La-CaTiO 3 was used in place of sacrificial agents to assess the influence operational factors on hydrogen generation a photocatalytic water splitting system. After being synthesized, physicochemical features this substance were accurately described. Several characterization techniques including UV–Vis spectroscopy, FTIR, XRD, XPS, EDX, SEM, TGA, DRS and BET applied study prepared photocatalyst. shows band visible wavelength between 400 800 nm at < 560 compared main CaTiO 350 nm. Ag 4d5s electrons transition conduction (CB), which is responsible for absorption ~ (> 2.21 eV). The effects catalyst concentration, light intensity, beginning solution pH H 2 rate may all be evaluated simultaneously using experimental design procedures. Up maximum threshold, where drop gas evolution occurs, it confirmed that increase dose positively affects system productivity. initial plays crucial role production, = 4 10 are optimum with higher yield production. highest total production rate, 6246.09 μmol, obtained concentration 700 mg equal under 1200 W Vis lamp h. For prediction optimization, D-Optimal optimal results 4, 645.578 6031.11 μmol.

Language: Английский

Citations

7
Optimization strategy of Co3O4 nanoparticles in biomethane production from seaweeds and its potential role in direct electron transfer and reactive oxygen species formation DOI Creative Commons
Mohamed A. Hassaan, Marwa R. Elkatory, Mohamed A. El-Nemr

et al.

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

Citations

7