Activation of peroxymonosulfate by g-C3N4/ε-MnO2 microspheres for nonradical pathway degradation of organic pollutants in water: Catalytic mechanism and degradation path

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 459, P. 141643 - 141643

Published: Feb. 2, 2023

Language: Английский

---

Z-scheme heterojunction composed of Fe doped g-C3N4 and MoS2 for efficient ciprofloxacin removal in a photo-assisted peroxymonosulfate system

Separation and Purification Technology, Journal Year: 2022, Volume and Issue: 303, P. 122219 - 122219

Published: Sept. 27, 2022

Language: Английский

---

Target recognition and preferential degradation of toxic chemical groups by innovative group-imprinted photocatalyst with footprint cavity

Applied Catalysis B Environment and Energy, Journal Year: 2023, Volume and Issue: 340, P. 123179 - 123179

Published: Aug. 15, 2023

Language: Английский

---

Acetamide‐ or Formamide‐Assisted In Situ Approach to Carbon‐Rich or Nitrogen‐Deficient Graphitic Carbon Nitride for Notably Enhanced Visible‐Light Photocatalytic Redox Performance

Small, Journal Year: 2023, Volume and Issue: 19(24)

Published: March 10, 2023

Acetamide- or formamide-assisted in situ strategy is designed to synthesize carbon atom self-doped g-C3 N4 (AHCNx ) nitrogen vacancy-modified (FHCNx ). Different from the direct copolymerization route that suffers problem of mismatched physical properties acetamide (or formamide) with urea, synthesis AHCNx FHCNx starts a crucial preorganization step urea via freeze drying-hydrothermal treatment so chemical structures as well C-doping level and N-vacancy concentration can be precisely regulated. By using various structural characterization methods, well-defined are proposed. At optimal , both exhibit remarkably improved visible-light photocatalytic performance oxidation emerging organic pollutants (acetaminophen methylparaben) reduction proton H2 comparison unmodified . Combination experimental results theoretical calculations, it confirmed show different charge separation transfer mechanisms, while enhanced harvesting capacity localized distributions on HOMO LUMO responsible for this excellent redox

Language: Английский

---

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

---

Nanoscale MgO confined in magnetic biochar via two-step pyrolysis for enhanced phosphate adsorption

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 339, P. 126754 - 126754

Published: Feb. 11, 2024

Language: Английский

---

Improvement Catalytic Efficiency of the Fenton-Like Reaction via the Interaction among Fe Species Encapsulated in N-Doped Carbon Materials

Langmuir, Journal Year: 2025, Volume and Issue: unknown

Published: March 12, 2025

The Fenton-like reaction has been widely used for environmental modification. However, improvement of the catalytic efficiency is still a challenge. In this study, series core-shell-shaped catalysts (FeNC-x, x presents calcination temperature) was fabricated through pyrolysis Fe-based metal-organic frameworks (Fe-MOF). Fe species were encapsulated by N-doped carbon materials and changed from Fe3O4 to Fe3C, α-Fe, Fe-N4 with temperature increasing 500 800 °C. Simultaneously, electron density atom obviously increased. FeNC-650 exhibited high efficiency, as more than 85.6% TC (40 mg/L) instantaneous removal H2O2-based reaction. turnover number about 70 64 times higher that Fe-MOF FeNC-500. synergistic interaction among induced distribution around excellent performances. Moreover, interference resistance toward different anions humic acid. toxicity intermediate products decreased during degradation. This research may give strategy synthesis in wastewater purification.

Language: Английский

---

High efficient adsorption for thorium in aqueous solution using a novel tentacle-type chitosan-based aerogel: Adsorption behavior and mechanism

International Journal of Biological Macromolecules, Journal Year: 2022, Volume and Issue: 222, P. 1747 - 1757

Published: Oct. 7, 2022

Language: Английский

---

Selective adsorption of organic dyes from aqueous environment using fermented maize extract-enhanced graphene oxide-durian shell derived activated carbon composite

Chemosphere, Journal Year: 2023, Volume and Issue: 339, P. 139742 - 139742

Published: Aug. 8, 2023

Language: Английский

---

S/P co-doped g-C3N4 with secondary calcination for excellent photocatalytic performance

International Journal of Hydrogen Energy, Journal Year: 2023, Volume and Issue: 51, P. 962 - 974

Published: Sept. 24, 2023

Language: Английский

---