Magnetic Composite Carbon from Microcrystalline Cellulose to Tackle Paracetamol Contamination: Kinetics, Mass Transfer, Equilibrium, and Thermodynamic Studies DOI Open Access
Pascal S. Thue,

Alfred G. N. Wamba,

Beatris L. Mello

et al.

Polymers, Journal Year: 2024, Volume and Issue: 16(24), P. 3538 - 3538

Published: Dec. 19, 2024

This study reported a one-spot preparation of magnetic composite carbon (MCC@Fe) from microcrystalline cellulose (MC). The pure was impregnated in iron (III) chloride solution and carbonized at 650 °C. MCC@Fe adsorbent underwent various characterization techniques. XRD identified nanostructured Fe3O4 particles with an average crystallite size 34.3 nm embedded the core subunits material. FESEM images indicated rough irregular surface, some cavities along its incorporating nanoparticles, while EDS analysis confirmed presence elements like Fe, C, O. Notably, combining thermal chemical treatments produces more pores high specific surface area (500.0 m2 g−1) compared to MC (1.5 m2/g). VSM properties (0.76 emu/g), Hydrophobic Index (HI) showed that hydrophobic (HI 1.395). adsorption studies consisted kinetic, mass transfer, equilibrium, thermodynamics studies. Kinetic paracetamol on proved be rapid, time necessary for covering 95% (t0.95) lower than 27 min following fractal-like pseudo-first-order model (FPFO). Liu’s isotherm most appropriate understanding equilibrium. Remarkably, maximum sorption capacity (Qmax) 34.78 mg g−1 45 ΔH° value (+27.00 kJ/mol) negative ΔG° values were consistent physisorption mechanism favorable process. Furthermore, transfer is governed by intraparticle diffusion model, being rate-limiting step when considering Biot number greater 100. research displayed single-route production inexpensive nano adsorbents capable efficiently eliminating aqueous environments.

Language: Английский

Environmental Impact of Ineffective Antibiotic Disposal: Strategies and Remedial Pathways: A Comprehensive Review DOI Open Access

R. Geetha

Environmental Quality Management, Journal Year: 2025, Volume and Issue: 34(3)

Published: Jan. 6, 2025

ABSTRACT The discovery and use of antibiotics revolutionized medicine, significantly reducing mortality from infectious diseases. However, widespread often indiscriminate antibiotic has led to environmental contamination, fostering antibiotic‐resistant bacteria posing serious public health threats. This review explores the primary sources including improper disposal by households, healthcare institutions, agriculture, pharmaceutical manufacturing. These contribute persistence residues proliferation resistance genes (ARGs) in natural ecosystems. presence disrupts microbial communities, impacting ecosystem functions such as nutrient cycling biodiversity. Various remediation strategies exist address this issue, ranging physicochemical methods like adsorption advanced oxidation processes (AOPs) bioremediation electrochemical techniques. Bioremediation employs naturally occurring or engineered microorganisms degrade detoxify antibiotics, while processes, systems (MES) cathodic degradation, electrical currents break down molecules. approaches have demonstrated effectiveness different environments, but challenges remain scaling up their application. Hybrid methods, integrating with treatments, show promise for enhanced contaminant removal, making them feasible addressing complex contamination scenarios. Future research should focus on optimizing these broader application, promoting a sustainable solution mitigate impact safeguard health.

Language: Английский

Citations

2
Remediation of antibiotics using coordination polymers DOI
Gaurav Sharma, Akshay Verma, Tongtong Wang

et al.

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 519, P. 216120 - 216120

Published: Aug. 9, 2024

Language: Английский

Citations

9
Research Progress in Graphene-Based Adsorbents for Wastewater Treatment: Preparation, Adsorption Properties and Mechanisms for Inorganic and Organic Pollutants DOI Creative Commons

G. Li,

Ruiling Du, Zhanfang Cao

et al.

C – Journal of Carbon Research, Journal Year: 2024, Volume and Issue: 10(3), P. 78 - 78

Published: Aug. 29, 2024

Graphene-based adsorbents show great potential for application in the field of environmental pollution treatment due to their unique two-dimensional structure, high specific surface area, and tunable chemistry. This paper reviews research on graphene its derivatives as novel wastewater recent years, focusing preparation functionalization graphene-based adsorbents, well adsorption performance mechanism action removal inorganic organic pollutants, provides an outlook future directions adsorbents. The analysis this focuses by introducing magnetic particles, hybridization with other materials, grafting polymers. modified showed significant pollutants were easy recycle regenerate. is mainly carried out through π–π interaction, hydrogen bonding, electrostatic which related structure pollutants. Future should focus in-depth studies development cost-effective treatment.

Language: Английский

Citations

8
Adsorption of fluoroquinolone antibiotics in aqueous solutions using nanomaterials: mechanisms, challenges, and future perspectives DOI
Ali Shahbazi, Amir Hossein Hamidian, Yu Zhang

et al.

Nanotechnology for Environmental Engineering, Journal Year: 2025, Volume and Issue: 10(2)

Published: March 28, 2025

Language: Английский

Citations

0
Fe-Mo bimetallic-doped Mulch-Straw based biochar activating peroxodisulfate for efficient degradation of antibiotics in water DOI Creative Commons
Qian Wang, Haifeng Yang, Shangrong Lin

et al.

Desalination and Water Treatment, Journal Year: 2025, Volume and Issue: unknown, P. 101158 - 101158

Published: April 1, 2025

Language: Английский

Citations

0
Efficient removal of moxifloxacin from aqueous solutions using sulfonated graphene oxide: Adsorption mechanisms, thermodynamics, and reusability DOI
Chironjit Kumar Shaha, Sudipta Saha,

Subarna Karmaker

et al.

Journal of Water Process Engineering, Journal Year: 2024, Volume and Issue: 67, P. 106187 - 106187

Published: Sept. 19, 2024

Language: Английский

Citations

3
Graphene Oxide-Based Antifungal Pesticide Delivery System for Tobacco Fungal Disease (Tobacco Target Spot) Control DOI

Guiji Yin,

Yi Luo, Jia Wang

et al.

Langmuir, Journal Year: 2024, Volume and Issue: 40(35), P. 18598 - 18609

Published: Aug. 23, 2024

In recent years, nanocarrier-based pesticide delivery systems have provided new possibilities for the efficient utilization of pesticides. this research, we developed a hydroxypropyl-β-cyclodextrin-modified graphene oxide (GO-HP-β-CD) nanocarrier pyraclostrobin (Pyr) and studied its application tobacco target spot disease control. GO-HP-β-CD has excellent pesticide-loading performance Pyr (adsorption capacity 1562.5 mg/g) good water dispersibility stability. Besides, shows pH-responsive release performance. addition, also better leaf affinity than Pyr, it can effectively adhere to surface after simulated washing. The results antifungal experiments indicate that GO-HP-β-CD-Pyr preventive effect on disease, EC

Language: Английский

Citations

2
Efficient Adsorptive Removal of Levofloxacin Using Sulfonated Graphene Oxide: Adsorption Behavior, Kinetics, and Thermodynamics DOI Creative Commons
Chironjit Kumar Shaha,

Subarna Karmaker,

Tapan Saha

et al.

Heliyon, Journal Year: 2024, Volume and Issue: 10(22), P. e40319 - e40319

Published: Nov. 1, 2024

Water pollution by antibiotic residues poses a potential threat to environmental and human health. Graphene-based materials are highly stable, recyclable effective adsorbents for efficiently removing antibiotics from polluted water. In this study, the adsorption behavior of levofloxacin onto sulfonated graphene oxide (SGO) was investigated varying contact period, solution pH, adsorbent quantity, concentration, inorganic ions, temperature. Spectroscopic microscopic techniques were employed confirm adsorptive interaction between SGO. The process most accurately characterized pseudo-second-order kinetic model Langmuir isotherm model, as indicated their high correlation coefficients (R 2) low root-mean-square error (RMSE) values. maximal quantity that can be adsorbed SGO determined 1250 μmol/g at pH 4 25 °C using model. Thermodynamic studies reveal is endothermic spontaneous in nature. Taking into consideration results adsorption, desorption regeneration studies, it proposed applied an economic viable agent removal aqueous environment.

Language: Английский

Citations

1
Magnetic Composite Carbon from Microcrystalline Cellulose to Tackle Paracetamol Contamination: Kinetics, Mass Transfer, Equilibrium, and Thermodynamic Studies DOI Open Access
Pascal S. Thue,

Alfred G. N. Wamba,

Beatris L. Mello

et al.

Polymers, Journal Year: 2024, Volume and Issue: 16(24), P. 3538 - 3538

Published: Dec. 19, 2024

This study reported a one-spot preparation of magnetic composite carbon (MCC@Fe) from microcrystalline cellulose (MC). The pure was impregnated in iron (III) chloride solution and carbonized at 650 °C. MCC@Fe adsorbent underwent various characterization techniques. XRD identified nanostructured Fe3O4 particles with an average crystallite size 34.3 nm embedded the core subunits material. FESEM images indicated rough irregular surface, some cavities along its incorporating nanoparticles, while EDS analysis confirmed presence elements like Fe, C, O. Notably, combining thermal chemical treatments produces more pores high specific surface area (500.0 m2 g−1) compared to MC (1.5 m2/g). VSM properties (0.76 emu/g), Hydrophobic Index (HI) showed that hydrophobic (HI 1.395). adsorption studies consisted kinetic, mass transfer, equilibrium, thermodynamics studies. Kinetic paracetamol on proved be rapid, time necessary for covering 95% (t0.95) lower than 27 min following fractal-like pseudo-first-order model (FPFO). Liu’s isotherm most appropriate understanding equilibrium. Remarkably, maximum sorption capacity (Qmax) 34.78 mg g−1 45 ΔH° value (+27.00 kJ/mol) negative ΔG° values were consistent physisorption mechanism favorable process. Furthermore, transfer is governed by intraparticle diffusion model, being rate-limiting step when considering Biot number greater 100. research displayed single-route production inexpensive nano adsorbents capable efficiently eliminating aqueous environments.

Language: Английский

Citations

1