Ecotoxicology and Environmental Safety, Journal Year: 2023, Volume and Issue: 263, P. 115231 - 115231
Published: July 8, 2023
Water contamination can be detrimental to the human health due higher concentration of carcinogenic heavy metals such as chromium (Cr) in wastewater. Many traditional methods are being employed wastewater treatment plants for Cr removal control environmental impacts. Such include ion exchange, coagulation, membrane filtration, and chemical precipitation microbial degradation. Recent advances materials science green chemistry have led development nanomaterial that possess high specific surface areas multiple functions, making them suitable removing from Literature shows most efficient, effective, clean, long-lasting approach involves adsorbing onto nanomaterial. This review assesses wastewater, advantages disadvantages using remove potential negative impacts on health. The latest trends developments strategies adsorption also explored present review.
Language: Английский
Citations
74Soil, air, and water pollution from mining and industrial activities: sources of pollution, environmental impacts, and prevention and control methods
Results in Engineering, Journal Year: 2024, Volume and Issue: 23, P. 102729 - 102729
Published: Aug. 15, 2024
Language: Английский
Citations
38Toxicological and bioremediation profiling of nonessential heavy metals (mercury, chromium, cadmium, aluminium) and their impact on human health: A review
Annales de Toxicologie Analytique, Journal Year: 2024, Volume and Issue: 36(3), P. 205 - 234
Published: April 7, 2024
Language: Английский
Citations
32Magnetically recyclable Fe3O4–CuS@SiO2 catalyst for synergistic adsorption and photodegradation of methyl orange in wastewater under visible light
Environmental Technology & Innovation, Journal Year: 2024, Volume and Issue: 33, P. 103545 - 103545
Published: Jan. 21, 2024
The Fe3O4–CuS@SiO2 photocatalyst, synthesized via a multistep assembly technique, effectively degraded methyl orange (MO) dye in an aqueous solution under visible light irradiation. solvothermal process generated Fe3O4–CuS nanoflowers, with Fe3O4 nanoparticles initially forming on the CuS surfaces. Subsequently, SiO2 shells were applied to using sol–gel resulting synthesis of photocatalyst. Within 20 min, prepared photocatalyst demonstrated remarkable MO degradation efficiency 94 ± 0.07% and sorption capacity 81.30 mg g−1. This efficacy was attributed synergistic effect between photocatalysis adsorption. superparamagnetic behavior catalyst at room temperature facilitated its high adsorbent recovery rate. proposed mechanism discussed considering various parameters capacity. Langmuir isotherm modeling (R2 = 0.9949) excellent fitting pseudo-second-order kinetics characterized adsorption data. Thermodynamic assessment revealed that is endothermic spontaneous (∆H° 110.0 kJ mol−1, ∆G° −3.03 −14.80 ∆S° 392.27 J mol−1 K−1). Notably, maintained 78% 0.20% after five sorption–desorption cycles for degradation, demonstrating exceptional reusability. These findings underscore superior environmental remediation potential
Language: Английский
Citations
18Eco-friendly sensing of hexavalent chromium ions via copper-doped carbon quantum dots: a fluorescent probe for water safety
Microchimica Acta, Journal Year: 2025, Volume and Issue: 192(2)
Published: Jan. 15, 2025
Abstract The hydrothermal synthesis is presented of copper-doped carbon dots (Cu-CDs) from citric acid, urea, and copper chloride, resulting in blue-fluorescent particles with stable emission at 438 nm when excited 340 nm. Through comprehensive spectroscopic microscopic characterization (FTIR, XPS, UV, HRTEM), the Cu-CDs demonstrated remarkable stability across varying pH levels, ionic strengths, temperatures, UV exposure. Notably, exhibit ultra-sensitive selective detection hexavalent chromium [Cr(VI)] ions aqueous environments driven by fluorescence quenching. system showed a robust linear response to Cr(VI) 0–80 µM range, an impressive limit (LOD) 0.186 µM, significantly lower than WHO’s permissible 0.96 µM. These findings position as effective tool for environmental monitoring water safety applications. Graphical
Language: Английский
Citations
2Green synthesis, characterization and adsorption of chromium and cadmium from wastewater using cerium oxide nanoparticles; reaction kinetics study
Journal of Molecular Structure, Journal Year: 2023, Volume and Issue: 1294, P. 136563 - 136563
Published: Sept. 2, 2023
Language: Английский
Citations
28Advances in adsorption technologies for hexavalent chromium removal: Mechanisms, materials, and optimization strategies
Desalination and Water Treatment, Journal Year: 2024, Volume and Issue: 319, P. 100576 - 100576
Published: July 1, 2024
In the realm of environmental engineering and water treatment, significant attention has been devoted to removal hexavalent chromium Cr (VI) from wastewater. Delving into mechanisms adsorption reveals a complex interplay ion exchange, surface complexation, electrostatic interactions dictating binding various materials. Utilizing diverse adsorbents like 2-D materials, metal oxides, bio-based substances is driven by their exceptional absorptive capacity specificity. Key parameters such as pH, temperature, initial concentration, dosage are scrutinized optimize efficiency adsorbent ascertain nature adsorbate. Beyond natural sources, human activities have exacerbated contamination across ecosystems, posing threat food chains due chromium's non-biodegradable persistence. Chromium affects wide range life forms, including humans, aquatic organisms, terrestrial species, through accumulation repercussions discharge. The leaching ground triggers health issues dermatitis, allergic reactions, skin ulcerations, bronchial carcinoma, asthma, gastroenteritis. This review intended list different treatment technologies for along with mechanism. Different types sensors used detection also explored.
Language: Английский
Citations
15Adsorptive removal of heavy metals from wastewater using Cobalt-diphenylamine (Co-DPA) complex
BMC Chemistry, Journal Year: 2024, Volume and Issue: 18(1)
Published: Jan. 29, 2024
Abstract Heavy metals like Cadmium, Lead, and Chromium are the pollutants emitted into environment through industrial development. In this work, a new diphenylamine coordinated cobalt complex (Co-DPA) has been synthesized tested for its efficiency in removing heavy from wastewater, adsorption capacity was investigated. The effectiveness of removal by Co-DPA evaluated adjusting parameters, such as adsorbent dose, pH, initial concentration, period. metal concentrations real sample were 0.267, 0.075, 0.125 mg/L Cd 2+ , Pb Cr 3+ before using as-synthesized to treat wastewater. After being treated with concentration reduced 0.0129, 0.00028, 0.00054 respectively, 80 min. 95.6%, 99.5%, 99.5% respective metals. process fitted satisfactorily Freundlich isotherm R 2 (0.999, 0.997, 0.995) respectively. kinetic data obeyed pseudo-second order pseudo-first . Based on results obtained within framework study, it is concluded that good eliminate ions wastewater solution. general, promising material water. Graphical
Language: Английский
Citations
12Efficient adsorption and reduction of Cr(VI) from water using A. niger@kaolin flocs: Utilization of waste solid
Journal of Water Process Engineering, Journal Year: 2024, Volume and Issue: 63, P. 105466 - 105466
Published: May 13, 2024
Language: Английский
Citations
9Chromium Detection in Water Using Optical Methods: A Study of Reagent and Reagentless Approaches
Critical Reviews in Analytical Chemistry, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 38
Published: Jan. 8, 2025
Water contaminated with chromium (Cr) poses significant risks to public health and the environment, necessitating reliable detection techniques. This review study uniquely provides a comprehensive analysis of optical methods for detecting Cr pollution in water, focusing on both reagent-based reagentless approaches, as well various sensing platforms. Unlike existing reviews that primarily focus electrochemical colorimetric/fluorimetric methods, this work highlights untapped potential technologies, such colorimetry, SPR, UV-Vis spectroscopy, more, distinct species, including reagent based approaches. The findings demonstrate high sensitivity specificity methods. Reagent-based approaches offer exceptional but involve complex preparation secondary contamination. In contrast, while requiring sophisticated calibration, are more environmentally friendly simpler implement. Future directions emphasize development portable, cost-effective devices, improved species differentiation, integration real-time data processing remote enhanced field monitoring. informs researchers policymakers about latest advancements techniques their enhance water quality
Language: Английский
Citations
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