Leveraging Industrial Jarosite Waste for Arsenic(V) and Chromium(III) Adsorption from Water: A Preliminary Study

Applied Sciences, Journal Year: 2025, Volume and Issue: 15(3), P. 1469 - 1469

Published: Jan. 31, 2025

The global problem of water scarcity is exacerbated by the continued contamination potable sources. This preliminary study investigates potential a hazardous industrial jarosite waste to adsorb As(V) and Cr(III) from contaminated waters. results showed that this mining effectively adsorbed both Cr(III), demonstrating its as low-cost sustainable solution for remediation along with use also contaminates. adsorption process was optimized, effects various parameters on capacity were investigated. findings suggest toxic residues in porous concrete could provide promising approach removal heavy metals polluted sources, contributing development more environmentally friendly treatment technologies. A maximum 90.6% 96.3% achieved, it verified initially contained about 0.44% As, which later leached during decomposition; again, able re-adsorb Cr(III).

Language: Английский

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Polyindole-Functionalized RGO-NiFe2O4-SiO2 Nanocomposite: A Dual-Functional Nanomaterial for Efficient Antimony Adsorption and Subsequent Application in Supercapacitor

Polymers, Journal Year: 2024, Volume and Issue: 16(21), P. 3084 - 3084

Published: Oct. 31, 2024

Effective wastewater treatment remains a critical challenge, especially when dealing with hazardous pollutants like antimony (Sb(III)). This study addresses this issue by using innovative nanocomposites to remove Sb(III) ions from water, while simultaneously repurposing the spent adsorbents for energy storage applications. We developed reduced graphene oxide-NiFe2O3-SiO2-polyindole (RGO-NiFe2O3-SiO2-PIn NCs) via hydrothermal synthesis method, achieving high removal efficiency of 91.84% at an initial concentration 50 mg/L pH 8. After adsorption, exhausted adsorbent was repurposed storage, effectively minimizing secondary pollution. The Sb(III)-loaded (RGO-NiFe2O3-SiO2-PIn@SbOx) exhibited excellent performance as material, specific capacitance (Cs) 701.36 F/g current density 2 A/g and retention rate 80.15% after 10,000 cycles. dual-purpose approach not only advances technologies but also contributes sustainable economical recycling practices, particularly in field storage.

Language: Английский

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Additive Manufacturing and Functionalization of Hollow Polypropylene Sorbents for Water Remediation

Macromolecular Rapid Communications, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 13, 2025

Abstract As the demand for clean water intensifies, developing effective methods removing pollutants from contaminated sources becomes increasingly crucial. This work establishes a method additive manufacturing of functional polymer sorbents with hollow porous features, designed to enhance interactions organic micropollutants. Specifically, core–shell filaments are used as starting materials, which contain polypropylene (PP) shell and poly(acrylonitrile‐co‐butadiene‐co‐styrene) core, fabricate 3‐dimensional (3D) structures on‐demand via material extrusion. After 3D printing, cores printed roads removed through solvent extraction, creating that increase accessible surface area adsorption. Subsequently, sulfonation‐induced crosslinking reaction installs sulfonic acid functionalities into PP backbones, while enhancing their chemical stability. It is found larger voids, thinner shells, enable improved structural retention during sulfonation limiting reaction‐induced stresses. The sulfonated exhibit strong affinity against cationic pollutants. voids within these not only improve integrity but also result in accelerated adsorption kinetics by maximizing area, thereby pollutant removal efficiency. provides promising solution advanced structured sorbent fabrication architectures, leading more solutions contaminant future.

Language: Английский

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Sustainable and recyclable starch-based ion exchange resin with superior exchange capacity and swelling resistance

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 131831 - 131831

Published: Jan. 1, 2025

Language: Английский

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Template assisted synthesis and application of hollow spherical metal oxide materials: A review

Applied Materials Today, Journal Year: 2025, Volume and Issue: 43, P. 102648 - 102648

Published: Feb. 24, 2025

Language: Английский

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Block ratio optimized cationic polyacrylamides for enhanced nitrate rejection under applied potential

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 162346 - 162346

Published: April 1, 2025

Language: Английский

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Unravelling fouling characteristics in a point-of-use water purifier: Bridging compositional evolution to spatial distribution

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 133138 - 133138

Published: April 1, 2025

Language: Английский

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Effect of different ratio KOH treatment on neem bark in the formation of activated carbon: Adsorption characteristics Study

Surfaces and Interfaces, Journal Year: 2024, Volume and Issue: unknown, P. 105476 - 105476

Published: Nov. 1, 2024

Language: Английский

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