Engineering n-Type and p-Type BiOI Nanosheets: Influence of Mannitol on Semiconductor Behavior and Photocatalytic Activity DOI Creative Commons
Shuo Yang, Wenhui Li, Kaiyue Li

et al.

Nanomaterials, Journal Year: 2024, Volume and Issue: 14(24), P. 2048 - 2048

Published: Dec. 21, 2024

Photocatalytic technology holds significant promise for sustainable development and environmental protection due to its ability utilize renewable energy sources degrade pollutants efficiently. In this study, BiOI nanosheets (NSs) were synthesized using a simple water bath method with varying amounts of mannitol reaction temperatures investigate their structural, morphological, photoelectronic, photocatalytic properties. Notably, the introduction played critical role in inducing transition from an n-type p-type semiconductor, as evidenced by Mott–Schottky (M-S) band structure analyses. This transformation enhanced density holes (h+) primary charge carriers resulted most negative conduction (CB) position (−0.822 V vs. NHE), which facilitated generation superoxide radicals (·O2−) activity. Among samples, BiOI-0.25-60 NSs (synthesized 0.25 g at 60 °C) exhibited highest performance, characterized largest specific surface area (24.46 m2/g), optimal gap (2.28 eV), efficient photogenerated separation. experiments demonstrated that achieved superior methylene blue (MB) degradation efficiency 96.5% under simulated sunlight, 1.14 times higher than BiOI-0-70 NSs. Additionally, effectively degraded tetracycline (TC), 2,4-dichlorophenol (2,4-D), rhodamine B (Rh B). Key factors such photocatalyst concentration, MB solution pH analyzed, excellent recyclability, retaining over 94.3% activity after three cycles. Scavenger tests further identified ·O2− h+ dominant active species driving process. pivotal modulating semiconductor characteristics nanomaterials is underscored, particularly promoting enhancing efficiency. These findings provide valuable strategy designing high-performance photocatalysts remediation applications.

Language: Английский

Heavy Metal Pollution in Coastal Environments: Ecological Implications and Management Strategies: A Review DOI Open Access
Mahmoud El‐Sharkawy, Modhi O. Alotaibi, Jian Li

et al.

Sustainability, Journal Year: 2025, Volume and Issue: 17(2), P. 701 - 701

Published: Jan. 17, 2025

Heavy metals originating from industrial runoff, agricultural practices, urbanization, and natural geological processes persist in coastal sediments due to their low degradation rates high stability. Their cycling is influenced by sediment dynamics, water circulation, complex interactions with biological chemical factors. metal pollution demonstrates serious risks biota, including fish, shellfish, algae, marine mammals through mechanisms such as bioaccumulation biomagnification. These lead biodiversity loss, habitat degradation, reduced ecosystem functionality. Current mitigation strategies for control regulations remediation techniques show promise but face challenges implementation. Emerging technologies nanotechnology bioremediation offer innovative solutions require further validation. Knowledge gaps understanding the long-term ecological impacts of heavy contamination optimizing management diverse ecosystems. Coastal ecosystems are vital supporting providing essential services, they increasingly threatened pollution—a pervasive environmental challenge that demands urgent attention. This review investigates sources, characteristics, pathways, impacts, associated environments. The synthesizes findings recent literature, employing a systematic approach analyze anthropogenic biogeochemical governing cycling. Future research should focus on addressing these interdisciplinary approaches, integrating advanced modeling techniques, stakeholder engagement, sustainable practices. By prioritizing efforts, we can safeguard services escalating threats pollution.

Language: Английский

Citations

5
Microalgae-based bioremediation of refractory pollutants: an approach towards environmental sustainability DOI Creative Commons
Mostafa M. El‐Sheekh,

Hala Y. El-Kassas,

Sameh S. Ali

et al.

Microbial Cell Factories, Journal Year: 2025, Volume and Issue: 24(1)

Published: Jan. 14, 2025

Abstract Extensive anthropogenic activity has led to the accumulation of organic and inorganic contaminants in diverse ecosystems, which presents significant challenges for environment its inhabitants. Utilizing microalgae as a bioremediation tool can present potential solution these challenges. Microalgae have gained attention promising biotechnological detoxifying environmental pollutants. This is due their advantages, such rapid growth rate, cost-effectiveness, high oil-rich biomass production, ease implementation. Moreover, microalgae-based remediation more environmentally sustainable not generating additional waste sludge, capturing atmospheric CO 2 , being efficient nutrient recycling algal production biofuels high-value-added products generation. Hence, achieve sustainability's three main pillars (environmental, economic, social). Microalgal mediate contaminated wastewater effectively through accumulation, adsorption, metabolism. These mechanisms enable reduce concentration heavy metals levels that are considered non-toxic. However, several factors, microalgal strain, cultivation technique, type pollutants, limit understanding removal mechanism efficiency. Furthermore, adopting novel technological advancements (e.g., nanotechnology) may serve viable approach address challenge refractory pollutants process sustainability. Therefore, this review discusses ability different species mitigate persistent industrial effluents, dyes, pesticides, pharmaceuticals. Also, paper provided insight into nanomaterials, nanoparticles, nanoparticle-based biosensors from immobilization on nanomaterials enhance open new avenue future advancing research regarding biodegradation

Language: Английский

Citations

3
Heavy Metal Contamination in Urban Soils: Health Impacts on Humans and Plants: A Review DOI Creative Commons
Abdul Wahid Monib, Parwiz Niazi,

Azizaqa Azizi

et al.

European Journal of Theoretical and Applied Sciences, Journal Year: 2024, Volume and Issue: 2(1), P. 546 - 565

Published: Jan. 1, 2024

This research looks at how the growth of cities and industries affects levels heavy metals in soil, which can impact people's health. We find out where pollution comes from, such as factories, car fumes, improper waste disposal, by reviewing existing studies. use different methods to test soil for study exposure these urban areas The evidence shows a connection between high city health problems like breathing issues, brain disorders, overall toxicity body. also explore get into human body, highlighting importance understanding they are available ways people exposed. To deal with polluted soils, we look manage suggest sustainable reduce metal pollution. Our discoveries add what know about environmental health, emphasizing need actions protect residents. Ultimately, this aims give important information insights policymakers, planners, public officials managing lessening risks linked contamination soils.

Language: Английский

Citations

7
Waves of change: Electrochemical innovations for environmental management and resource recovery from water – A review DOI

Sivasubramanian Manikandan,

S. Deena, Ramasamy Subbaiya

et al.

Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 366, P. 121879 - 121879

Published: July 22, 2024

Language: Английский

Citations

6
Contamination source, health and ecological risk assessment of hazardous elements in the sediment of the Shahid Rajaee reservoir DOI Creative Commons
Fatemeh Kachoueiyan,

Pourya Alipour Atmianlu,

Armin Rajabi

et al.

Frontiers in Environmental Science, Journal Year: 2024, Volume and Issue: 12

Published: Oct. 21, 2024

Sediment pollution from potentially hazardous elements (PHE) generated by human activity has grown into a worldwide problem. In this regard, for the first time, surface sediment samples were obtained six points along Shahid Rajaee Reservoir investigation. Elements concentrations (Cu, Cr, Co, Mn, Fe, Pb, Ni, and Zn) assessed using ICP-MS. Based on individual indices (geoaccumulation index, contamination factor), all at sample sites found to be low in contamination, except Pb Zn (at 1 2). The combined effect of PHEs did not show considerable concern, according synergistic indices. health risk assessment revealed that recreational receptors unlikely face non-carcinogenic or carcinogenic hazards as consequence exposure sediments with unintentional ingesting contact skin. Tessier technique demonstrated mostly connected oxidizable fraction. According statistical study, while Cu, Mn lithogenic sources, came natural well human-made sources.

Language: Английский

Citations

6
Assessment of biochar supported sulfidized iron-based nanoparticles for immobilization of cadmium in sediment: Effectiveness, contribution of iron reducing bacteria, and mechanism insight DOI
Jun Li,

Qi He,

Weilong Lin

et al.

Journal of Cleaner Production, Journal Year: 2024, Volume and Issue: 467, P. 143026 - 143026

Published: June 25, 2024

Language: Английский

Citations

5
Bioaccumulation dynamics, noncarcinogenic and carcinogenic risks of heavy metals in commercially valuable shellfish and finfish species from the world largest floating slum, Makoko, Nigeria DOI
Toheeb Lekan Jolaosho, Isa Olalekan Elegbede, Shehu Latunji Akintola

et al.

Marine Pollution Bulletin, Journal Year: 2024, Volume and Issue: 207, P. 116807 - 116807

Published: Aug. 10, 2024

Language: Английский

Citations

4
Community-based adaptation strategies for marine microplastic management DOI
Nova Ulhasanah, Mega Mutiara Sari, Ariyanti Sarwono

et al.

Regional Studies in Marine Science, Journal Year: 2025, Volume and Issue: unknown, P. 104015 - 104015

Published: Jan. 1, 2025

Language: Английский

Citations

0
Therapeutic Potential of Biotoxins and Biotechnological Innovations DOI
Prince Kumar Singh,

Gereraj Sen Gupta,

Indrajeet Kumar

et al.

Published: Jan. 1, 2025

Language: Английский

Citations

0
BIOREMEDIATION: A SUPERIOR ALTERNATIVE FOR REMEDIATING TANNERY EFFLUENT-CONTAMINATED SOIL DOI Creative Commons
Aminu Muhammad Gusau, Aminu Yusuf Fardami

FUDMA Journal of Sciences, Journal Year: 2025, Volume and Issue: 9(2), P. 193 - 208

Published: Feb. 28, 2025

Tannery effluent poses significant risks to soil health, primarily through contamination with heavy metals like chromium, sulphides, and persistent organic pollutants (POPs). These toxic substances inhibit microbial activity, reducing nutrient cycling matter decomposition essential for fertility. Beneficial microorganisms, including nitrogen-fixing bacteria, are particularly affected, leading altered communities dominated by less advantageous, metal-tolerant species. Accumulation of POPs disrupts enzymatic activities, interferes plant root growth, complicates remediation efforts due pollutant migration groundwater potential entry into the food chain. Prolonged exposure such contaminants diminishes fertility, reduces resilience, ecosystem services, posing threats agricultural productivity environmental health. This review was aimed outline what made bioremediation a superior treatment technology among other methods used in remediating tannery contaminated soil. Efforts mitigate impacts involve combination physical, chemical, biological technologies. Physical washing, flushing, thermal desorption focus on removing or isolating contaminants, while chemical approaches as oxidation, reduction, stabilization transform harmful forms immobilize them. Biological leverages microorganisms plants detoxify sustainably. Bioremediation strategies aid bioaugmentation biostimulation do enhance activity address inorganic effectively more than physical methods. Another excellent called phytoremediation can also effectively, Achieving better technique should be coupled stringent industrial regulations, sustainable tanning methods, stakeholder awareness

Language: Английский

Citations

0