Fabrication of CaCO3 Microcubes and Mechanistic Study for Efficient Removal of Pb from Aqueous Solution DOI Open Access
Ufra Naseer, Asim Mushtaq, Muhammad Ali

et al.

Materials, Journal Year: 2024, Volume and Issue: 17(22), P. 5523 - 5523

Published: Nov. 12, 2024

Pb(II) contamination in aquatic environments has adverse effects on humans even at a low concentration, so the efficient removal of Pb cost is vital for achieving an environmentally friendly, sustainable, and healthy society. A variety CaCO3-based functional adsorbents have been synthesized to remove Pb, but adsorption capacity still unsatisfactory. Herein, calcite CaCO3 microcubes/parallelepipeds are via simple precipitation hydrothermal approach found outperform previously reported nano-adsorbents considerably. The achieves high efficiency (>99%) very dosage (0.04-0.1 g/L) initial concentration 100 mg/L. presents excellent 4018 mg/g depicts good stability over wide range pH 6-11. maximum kinetics fitted well by pseudo-second-order kinetic model, whereas Freundlich isotherm delineates data equilibrium well, indicating multilayer process. ex situ study confirms that mechanism can be attributed rapid metal-ion-exchange reaction between Ca2+. Furthermore, red shift Fourier Transform Infrared (FTIR) spectroscopy peak from 1386 cm-1 1374 after indicates onto surface. This adsorbent provides opportunity treat wastewater extended other toxic heavy metals.

Language: Английский

Impact of ZnO Nanostructure Morphology on Electrochemical Sensing Performance for Lead Ion Detection in Real Water Samples DOI Creative Commons
Ēriks Sļedevskis, Marina Krasovska, V. Gerbreders

et al.

Chemosensors, Journal Year: 2025, Volume and Issue: 13(2), P. 62 - 62

Published: Feb. 9, 2025

This study investigated the morphological dependence of ZnO nanostructures, specifically nanotube- and nanorod-based electrodes, on their electrochemical performance for detection lead ions (Pb2⁺) in aqueous solutions. The results demonstrate that nanotubes exhibit significantly enhanced sensitivity compared to nanorods during CV measurements. During SWV measurements, (116.79 mA·mM−1) a lower limit 0.0437 μM were determined. hollow, high-aspect-ratio structure provides larger active surface area facilitates better ion accessibility, resulting superior electron transfer efficiency catalytic activity. These underscore critical role morphology optimizing ZnO-based sensors. Analysis real water samples from various natural reservoirs revealed no detectable lead, while was identified exclusively artificially prepared containing exposed hunting shot. Over 30-day period, sensor retained over 95% its initial when stored under vacuum conditions, demonstrating minimal signal degradation. Under ambient stability loss attributed moisture adsorption porous nanostructure. also displayed outstanding reproducibility, with current response variations across multiple probes remaining within 4%. cost-effective simple fabrication process nanostructures further highlights potential scalable production, environmental monitoring, integration into portable sensing devices.

Language: Английский

Citations

0
Electrochemical Sensors Based on Schiff Base to Detect Pb(II) ion: Recent Advancements and Future Perspectives DOI Creative Commons
Abhay Nanda Srivastva,

Kriti Milan,

Dharm Veer Singh

et al.

Journal of The Electrochemical Society, Journal Year: 2025, Volume and Issue: 172(3), P. 037502 - 037502

Published: Feb. 21, 2025

Schiff base has gained attention because it is highly sensitive toward metal ions. Lead, one of the heavy metals, harmful for human health and environment, making lead contamination a matter concern across globe. Hazardous effects can be minimized by detecting its presence in food water. Detection ion electrochemical sensors gaining credence which extolled as being selective, cost effective, rapidly Pb(II). The sensor provides pathway to extricate dolorous early detection.

Language: Английский

Citations

0
Kinetic and thermodynamic evaluation of adsorptive removal of lead(II) from aqueous solutions using Polypyrrole@CoFe<sub>2</sub>O<sub>4 </sub>nano-adsorbent DOI Open Access
Abhishek Kumar Srivastava, Neetu Srivastava, Rashmi Nayak

et al.

Progress in Reaction Kinetics and Mechanism, Journal Year: 2025, Volume and Issue: 50(1), P. 0 - 0

Published: Jan. 1, 2025

Language: Английский

Citations

0
Paternal Lead Exposure and Pregnancy Outcomes: A Systematic Review and Meta-Analysis DOI Creative Commons

Kenechi A. Aliche,

Francis Uchenna Umeoguaju,

Catherine C. Ikewuchi

et al.

Environmental Health Insights, Journal Year: 2025, Volume and Issue: 19

Published: March 1, 2025

Paternal lead exposure has emerged as a potential contributor to adverse pregnancy outcomes, yet its impact remains underexplored compared maternal exposure. This systematic review and meta-analysis synthesize evidence on the association between paternal outcomes inform public health interventions future research. To evaluate including spontaneous abortion, low birth weight, preterm birth, small-for-gestational-age, congenital anomalies. A search of PubMed, Scopus, Google Scholar was conducted up August 2024. Observational studies examining (⩾15 µg/dL) effects were included. Data synthesis adhered PRISMA 2020 guidelines, study quality assessed using Newcastle-Ottawa Scale. Meta-analysis performed random-effects model compute pooled odds ratios (ORs) with 95% confidence intervals (CIs). Eleven included in review, 7 contributing meta-analysis. The OR for anomalies associated statistically significant (OR = 2.09, CI: 2.09-3.35; P < .01), indicating strong association. However, no associations observed other outcomes: abortion 1.11, 0.75-1.64), weight 0.98, 0.68-1.39), 1.57, 0.61-4.05), small-for-gestational-age infants 0.92, 0.78-1.09). Heterogeneity most except ( I 2 39%) 52%). highlights anomalies, emphasizing need occupational environmental regulations targeting among men reproductive age.

Language: Английский

Citations

0
Lead treatment affects mineral element status in rye (Secale cereale L.) plants DOI
İbrahim İlker Özyiğit,

Sezen Igdelioglu,

Seher Yolcu

et al.

Cereal Research Communications, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 27, 2024

Language: Английский

Citations

2
Fabrication of CaCO3 Microcubes and Mechanistic Study for Efficient Removal of Pb from Aqueous Solution DOI Open Access
Ufra Naseer, Asim Mushtaq, Muhammad Ali

et al.

Materials, Journal Year: 2024, Volume and Issue: 17(22), P. 5523 - 5523

Published: Nov. 12, 2024

Pb(II) contamination in aquatic environments has adverse effects on humans even at a low concentration, so the efficient removal of Pb cost is vital for achieving an environmentally friendly, sustainable, and healthy society. A variety CaCO3-based functional adsorbents have been synthesized to remove Pb, but adsorption capacity still unsatisfactory. Herein, calcite CaCO3 microcubes/parallelepipeds are via simple precipitation hydrothermal approach found outperform previously reported nano-adsorbents considerably. The achieves high efficiency (>99%) very dosage (0.04-0.1 g/L) initial concentration 100 mg/L. presents excellent 4018 mg/g depicts good stability over wide range pH 6-11. maximum kinetics fitted well by pseudo-second-order kinetic model, whereas Freundlich isotherm delineates data equilibrium well, indicating multilayer process. ex situ study confirms that mechanism can be attributed rapid metal-ion-exchange reaction between Ca2+. Furthermore, red shift Fourier Transform Infrared (FTIR) spectroscopy peak from 1386 cm-1 1374 after indicates onto surface. This adsorbent provides opportunity treat wastewater extended other toxic heavy metals.

Language: Английский

Citations

1