Emerging waste-to-wealth applications of fly ash for environmental remediation: A review

Environmental Research, Journal Year: 2023, Volume and Issue: 227, P. 115800 - 115800

Published: March 30, 2023

Language: Английский

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High strength chitin/chitosan-based aerogel with 3D hierarchically macro-meso-microporous structure for high-efficiency adsorption of Cu(II) ions and Congo red

International Journal of Biological Macromolecules, Journal Year: 2023, Volume and Issue: 230, P. 123238 - 123238

Published: Jan. 11, 2023

Language: Английский

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Applications of Transition Metal Oxides and Chalcogenides and their Composites in Water Treatment: a review

Environmental Advances, Journal Year: 2023, Volume and Issue: 11, P. 100341 - 100341

Published: Jan. 4, 2023

High population growth, industrialization, precipitous urban settlement, and poor government policies in some circles have increased resource consumption various environmental activities that promote water pollution. Diverse materials such as nanomaterials, quantum dots, carbonaceous materials, quaternary-metallic oxides been very successful removing benign pollutants from contaminated bodies. Lately, transition metal (TMOs) chalcogenides (TMCs), their composites attracted favorable research interest applications due to flexible elemental composition, manipulatable bandgaps, earth abundance, optoelectrical properties, visible light activity, catalytic stability. This review explores the of binary, ternary, quaternary, heterostructure TMOs TMCs for a broad range biological, organic, inorganic wastewater treatment. The popular treatment strategies explored include photocatalysis, adsorption, antimicrobial, persulfate/peroxymonosulfate activation, Fenton-like process. mechanisms catalysis these processes were briefly highlighted prospects use discussed.

Language: Английский

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A comprehensive review on current trends in greener and sustainable synthesis of ferrite nanoparticles and their promising applications

Results in Engineering, Journal Year: 2023, Volume and Issue: 21, P. 101702 - 101702

Published: Dec. 24, 2023

Magnetic nanoparticles, particularly nanosized spinel ferrites, have emerged as promising materials in science, engineering, and medicine due to their unique intriguing properties achieved through various synthesis methods. These nanoparticles play crucial roles research, commercial products, biomedical applications. The increasing interest green methods for magnetic nanocomposites is driven by significance diverse fields, including medicine, environmental remediation. Recently, there has been a burgeoning focus on green-synthesized ferrite (MFe2O4, where M = Co, Cu, Mn, Ni, Zn, Mg) nanocomposites, which find applications chemical, biological, reactions. This review highlights the latest research conducted over last four years producing ferrites containing additional elements, focusing plant microorganism-mediated techniques. surface of nanomaterials energy, sensors, water treatment, antimicrobial activity, heavy metal removal, are discussed. facilitates comprehensive understanding incorporating findings advancements. A thorough knowledge synthesis, properties, highlighted maximizing potential nanoferrites fields.

Language: Английский

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Nanoremediation for heavy metal contamination: A review

Hybrid Advances, Journal Year: 2023, Volume and Issue: 4, P. 100091 - 100091

Published: Oct. 2, 2023

Pollution is a significant problem in both industrialized and developing countries, as well some developed countries. Heavy metal pollution poses crucial concern for communities due to its detrimental impact on human health the long-term well-being of planet. metals, such cadmium, chromium, arsenic, lead, mercury, do not degrade can enter food chain, leading risks. Therefore, it essential monitor take necessary steps eliminate heavy residues that may be present food, beverages, environment. Although exact role nanomaterials cleanup still unclear, nanotechnology holds promise future solution. In first part this comprehensive review, brief overview nanoremediation provided. The subsequent sections delve into various their potential applications different scenarios. Following that, critical analysis conducted nano-remediation methods, including oxidation, adsorption, chemical precipitation, filtration, ion exchange, coagulation-flocculation, photo-catalysis. Lastly, further suggestions are put forward regarding utilization more effective enduring cleanup, particularly eliminating metals.

Language: Английский

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Comprehensive analytical review of heavy metal removal efficiency using agricultural solid waste-based bionanocomposites

Nano-Structures & Nano-Objects, Journal Year: 2024, Volume and Issue: 38, P. 101220 - 101220

Published: May 1, 2024

Language: Английский

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Metal-Organic Frameworks: A promising solution for efficient removal of heavy metal ions and organic pollutants from industrial wastewater

Journal of Molecular Liquids, Journal Year: 2024, Volume and Issue: 399, P. 124365 - 124365

Published: March 2, 2024

Language: Английский

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Green Adsorbents for Environmental Remediation: Synthesis Methods, Ecotoxicity, and Reusability Prospects

Processes, Journal Year: 2024, Volume and Issue: 12(6), P. 1195 - 1195

Published: June 11, 2024

Adsorbent materials have long been used for remediating environmental contaminants. There is an increasing focus on developing sustainable adsorbent long-term use in environmentally friendly and cost-effective remediation. “Green” or “eco-friendly” sorbent are generally prepared from renewable recycled resources, minimal toxic effects, involve synthesis processes with minor chemical energy footprints, high reusability, do not contribute to additional waste contamination. Thus, it essential sorption capacity, stability, reusability. The literature focuses using low-cost produce the immobilization of contaminants soil water systems. regeneration possibilities adsorbents evaluate their cost effectiveness impact once they applied at field-scale. This review evaluates materials, highlighting green eco-friendly qualities a circular economy, contribution United Nations Sustainable Development Goals (UNSDG). techniques, ecotoxicity, prospect reusing highlighted. Further, provides insights researchers practitioners interested applying adsorbents, including bio-based carbon, char, fibrous

Language: Английский

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Synthesis of a novel green biopolymer-based composites beads for removal of methylene blue from aquatic medium: isotherm, thermodynamic and kinetic investigation

Polymer Bulletin, Journal Year: 2024, Volume and Issue: 81(7), P. 6603 - 6640

Published: Feb. 15, 2024

Abstract The increase in the world population and decrease clean water resources people's interest purification technologies. Many industries, such as textile industry, leather cosmetics food color their products with substances dyes pigments. In this study, a cheap, useful, innovative, environmentally friendly, sustainable adsorbent was developed for removal of Methylene Blue (MB), one that is harmful to environment. fruit tree cultivation, addition product, very high amounts by-products/waste (branches, bark, leaves, seeds, shells, etc.) are produced. direction, walnut olive wastes were immobilized chitosan, made magnetic (m-WCH m-OCH), adsorption MB on adsorbents examined batch system. Characterization synthesized biocomposite performed by FT-IR, SEM, EDX XRD analyzes. It has been thoroughly described how pH solution dye compares PZC surface. values m-WCH m-OCH 5.2 5.5 respectively. biocomposites depends environment (3–8), amount (2–10 gL −1 ), contact time (5–360 min), temperature (25–55 °C) initial concentration (10–250 ppm) function. obtained data evaluated kinetic isotherm models. Using equilibrium from studies using adsorbents, suitability Langmuir, Freundlich, Stachard, Dubinin–Radushkevich Temkin models examined. empirical showed agreement Langmuir model. maximum capacity estimated be 85.47 mg g 53.48 , result higher selectivity m-OCH. Among applied, pseudo-second-order model identified highest regression coefficients. light these results, it determined there new promising natural origin, capacity, lower cost, alternatives commercially used aqueous media. Graphical abstract

Language: Английский

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Potential of easily available low-cost raw cotton for the elimination of methylene blue dye from polluted water

Desalination and Water Treatment, Journal Year: 2024, Volume and Issue: 318, P. 100319 - 100319

Published: April 1, 2024

This study centerd on exploring the adsorptive potential of raw cotton for methylene blue dye adsorption. Several laboratory experiments conducted to optimize operational factors like pH, concentration dye, adsorbent dose, contact time, and temperature. Optimized conditions include an dose 0.35 g, pH 7, initial 20 ppm with time 30 minutes at ºC wherein 83% adsorption take place. The mean values ± standard deviation from triplicate were used express results P < 0.05. investigational data fit well Langmuir isotherm model having R2 0.9477 pseudo second order kinetic = 1. obtained capacities through non-linear models exhibit a significant degree similarity those derived linear models. Thermodynamic showed negative ∆G, positive ∆H increased ∆S revealing that reaction was spontaneous endothermic in nature. developed method also tested tap water which 72% removal subsequent regeneration system led nearly 79% desorption dye. Results revealed additive salts had minimum effect process. originality this is no research has been reported till yet, by using low-cost specifically its non-modified form.

Language: Английский

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