Significantly Enhanced Nitrate Removal by Nanoscale Zerovalent Iron–Reduced Graphene Oxide Composites via Biological Denitrification: Performance and Mechanism DOI
Haiyan Li, Jiayue Han, Zehua Li

et al.

ACS ES&T Water, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 6, 2024

To address the challenges of rapid oxidation and aggregation nanoscale zerovalent iron (nZVI) in biological denitrification, we investigated effectiveness nZVI–reduced graphene oxide (rGO) composites NO3––N removal by denitrification for first time. The results revealed that addition nZVI–rGO exhibited superior performances, which were 7 times 3 higher than bacteria alone nZVI with bacteria, respectively. Furthermore, comparing Fe2+ ion, content, Tafel polarization curve, slope composites, it was found had excellent antioxidant properties few oxides process. More importantly, not only addressed issue but also maintained high dispersibility denitrification. In addition, linear scanning voltammetry electrochemical impedance spectroscopy curves, as well cytochrome c activity, verified more efficient electron transfer capabilities during Lastly, significantly enhanced abundance napA 1.55 to alone. These findings provide deep insights into mechanisms enhancing

Language: Английский

Recent advances in clay minerals for groundwater pollution control and remediation DOI

Simin Hu,

Yu Liu,

Lezhang Wei

et al.

Environmental Science and Pollution Research, Journal Year: 2024, Volume and Issue: 31(17), P. 24724 - 24744

Published: March 19, 2024

Language: Английский

Citations

3
Enhanced Nitrogen Removal from Tailwater in Constructed Wetlands with Plant Carbon Source addition and Z-nZVI Substrate DOI

Xingyu Fang,

Mingming Yang, Jinhui Zhao

et al.

Water Air & Soil Pollution, Journal Year: 2025, Volume and Issue: 236(4)

Published: March 15, 2025

Language: Английский

Citations

0
In situ remediation of mercury-contaminated groundwater through an in situ created reactive zone enabled by carboxymethyl cellulose stabilized FeS nanoparticles DOI
Mengxia Wang, Bing Han, Dongye Zhao

et al.

Environmental Pollution, Journal Year: 2024, Volume and Issue: 361, P. 124902 - 124902

Published: Sept. 6, 2024

Language: Английский

Citations

2
Enhanced Cr(VI) and nitrate reduction using rGO/nZVI coupled hydrogen autotrophs under weak magnetic field: Performance and mechanisms DOI

Zifang Chi,

Xinyang Liu, Huai Li

et al.

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: unknown, P. 130585 - 130585

Published: Nov. 1, 2024

Language: Английский

Citations

2
Chitosan-stabilized iron-copper nanoparticles for efficient removal of nitrate DOI

Xiaxia Yang,

Wenhong Yang, Yingjie Chen

et al.

Environmental Science and Pollution Research, Journal Year: 2023, Volume and Issue: 30(43), P. 97298 - 97309

Published: Aug. 17, 2023

Language: Английский

Citations

3
Synthesis and characterization of a designed poly(ionic liquid‐modified graphene oxide) nanocomposite: Evaluation of nitrate removal from water and antimicrobial properties DOI Open Access
S. Mojtaba Amininasab,

Mona Nasseri,

Bita Soleimani

et al.

Journal of Vinyl and Additive Technology, Journal Year: 2024, Volume and Issue: 30(6), P. 1556 - 1569

Published: Aug. 7, 2024

Abstract Addressing the global challenge of water contamination, this study introduces a novel nanocomposite adsorbent—poly(ionic liquid‐modified graphene oxide) (PIL‐MGO)—designed to remove nitrates efficiently from and combat microbial threats. Leveraging modified oxide vinyl imidazolium‐based ionic liquid, research synthesizes an adsorbent via facile cost‐effective approach. The performance PIL‐MGO was rigorously analyzed through series characterizations, including Frontier transform infrared spectroscopy, field emitting scanning electron microscopy, energy dispersive X‐ray thermogravimetric analysis, revealing its robust structural composition thermal stability. In our experimental exploration, showcased remarkable nitrate removal efficiency up 97.53%, under optimal conditions initial pH 5, room temperature, concentration 30 mg/L, contact time min, dosage 40 mg, with significant selectivity for ions over competing anions. Moreover, regeneration 7 cycles indicated only marginal decline in adsorption efficiency. Furthermore, demonstrated considerable antimicrobial properties against bacteria fungi, indicating dual utility purification inhibition. These findings suggest that synthesized holds great promise addressing environmental health‐related challenges posed by pollutants. This not underscores capabilities but also paves way further advancements technologies. Highlights A based on imidazolium liquid oxide. newly developed evaluated as water, demonstrating high exhibited notable ions, effectively distinguishing them anions such chloride, bicarbonate, sulfate, phosphate. kinetics were best described pseudo‐second‐order kinetic model, isotherm aligned well Langmuir model. Investigation activity displayed inhibitory effects both fungi.

Language: Английский

Citations

0
Significantly Enhanced Nitrate Removal by Nanoscale Zerovalent Iron–Reduced Graphene Oxide Composites via Biological Denitrification: Performance and Mechanism DOI
Haiyan Li, Jiayue Han, Zehua Li

et al.

ACS ES&T Water, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 6, 2024

To address the challenges of rapid oxidation and aggregation nanoscale zerovalent iron (nZVI) in biological denitrification, we investigated effectiveness nZVI–reduced graphene oxide (rGO) composites NO3––N removal by denitrification for first time. The results revealed that addition nZVI–rGO exhibited superior performances, which were 7 times 3 higher than bacteria alone nZVI with bacteria, respectively. Furthermore, comparing Fe2+ ion, content, Tafel polarization curve, slope composites, it was found had excellent antioxidant properties few oxides process. More importantly, not only addressed issue but also maintained high dispersibility denitrification. In addition, linear scanning voltammetry electrochemical impedance spectroscopy curves, as well cytochrome c activity, verified more efficient electron transfer capabilities during Lastly, significantly enhanced abundance napA 1.55 to alone. These findings provide deep insights into mechanisms enhancing

Language: Английский

Citations

0