Recent advances in designable nanomaterial-based electrochemical sensors for environmental heavy-metal detection

Nanoscale, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Schematic of functional materials for electrochemical sensors, showcasing MWCNTs, CNFs, GO, Pd, Pt, Ni, Fe, Co, COFs, MOFs detecting heavy metal ions (Pb, Cd, Hg, Cu, Cr, As) in complex environments with high sensitivity and reliability.

Язык: Английский

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From biochar to battery electrodes: A pathway to green lithium and sodium-ion battery systems

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 159556 - 159556

Опубликована: Янв. 1, 2025

Язык: Английский

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Development of biodegradable chitosan-enhanced polypyrrole composite for effective adsorption of europium and chromium from industrial and radioactive wastewater

Journal of environmental chemical engineering, Год журнала: 2025, Номер unknown, С. 115511 - 115511

Опубликована: Янв. 1, 2025

Язык: Английский

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MS-Based Characterization of Biomass-Derived Materials: Activated Carbons and Solvent Liquefaction Products

Polymers, Год журнала: 2025, Номер 17(3), С. 258 - 258

Опубликована: Янв. 21, 2025

Mass spectrometry (MS) is a powerful analytical technique that widely used to characterize variety of analytes across diverse fields. In the area biomass conversion, which essential for producing sustainable materials and energy, role MS pivotal. Biomass conversion processes, such as solvent liquefaction pyrolysis, generate wide range industrially valuable including bio-based polymers, fuels, activated carbons. However, inherent complexity heterogeneity its transformation products pose significant challenges. Advanced techniques, GC-MS, LC-MS, ICP-MS MALDI-MS, are comprehensive analysis, providing detailed insights into compositions, impurities, potential inhibitors influence process optimization product quality. This review systematically explores recent advancements in MS-based methods analysis biomass-derived products. We discuss fundamental innovations processes highlight applications various techniques assessing chemical these materials. The provided by not only facilitate but also support production high-value from biomass, aligning with ongoing efforts enhance environmental sustainability resource efficiency.

Язык: Английский

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Effective water purification and dopamine sensors under visible light with functionalised multi-walled carbon nanotubes and TiO2 based nanocomposites

Inorganic Chemistry Communications, Год журнала: 2025, Номер unknown, С. 114153 - 114153

Опубликована: Фев. 1, 2025

Язык: Английский

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Low-cost electrochemical sensor based on montmorillonite for the simultaneous detection of phenolic pollutants in tap and bottled water

Journal of environmental chemical engineering, Год журнала: 2025, Номер unknown, С. 115981 - 115981

Опубликована: Фев. 1, 2025

Язык: Английский

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Evolution and recent development of cellulose-modified, nucleic acid-based and green nanosensors for trace heavy metal ion analyses in complex media: A review

International Journal of Biological Macromolecules, Год журнала: 2025, Номер unknown, С. 141745 - 141745

Опубликована: Март 1, 2025

Язык: Английский

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Sustainable CQDs/ZnO Nanocomposite for Multifaceted Applications in Detection of Pb 2+ and Degradation of RhB Dye

Research Square (Research Square), Год журнала: 2025, Номер unknown

Опубликована: Апрель 1, 2025

In this study, carbon quantum dots (CQDs) were synthesized from apple peel waste using a one-step hydrothermal process and incorporated into ZnO nanocomposite. The product was characterized various analytical techniques, including FTIR, XRD, SEM, TEM. FTIR analysis revealed the presence of functional groups such as -COOH, C-O-C, Zn-O, while XRD confirmed wurtzite crystalline structure CQDs/ZnO nanocomposite exhibited UV-Vis absorption peaks at 280 nm 330 nm, attributed to π-π* n-π* transitions, respectively, indicating its optical activity. calculated bandgap 3.87 eV suggests involvement in phase, known for wide properties. Adsorption studies showed that followed pseudo-first-order kinetics, demonstrating efficiency adsorption process. Moreover, fluorescence intensity significantly decreased Pb²⁺ ions, enabling selective detection over other metal ions. probe linear response concentration range 0–300 µM, with threshold (DT) 0.21 highlighting high sensitivity detection. Additionally, successfully applied detect ions real water samples, practical applicability.

Язык: Английский

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Electrochemical Sensor Based on DNA Aptamers Immobilized on V2O5/rGO Nanocomposite for the Sensitive Detection of Hg(II)

Sensors, Год журнала: 2025, Номер 25(7), С. 2334 - 2334

Опубликована: Апрель 7, 2025

We developed a sensor consisting of V2O5 nanorods and reduced graphene oxide (rGO) nanocomposite (V2O5/rGO) with immobilized DNA aptamers (Apt-NH@V2O5/rGO) for the sensitive electrochemical detection Hg (II). The anchored on rGO nanosheets were synthesized using hydrothermal method. was analyzed by various powerful physical methods that include X-ray diffraction (XRD), energy-dispersive spectroscopy (EDX), field emission scanning electron microscopy (FE-SEM), Raman spectroscopy, Brunauer-Emmett-Teller (BET) method, Fourier transform infrared (FTIR). FE-SEM disclosed nanorod-like structure uniform anchoring nanosheet. Moreover, BET results showed V2O5/rGO possesses excellent porosity. Furthermore, glassy carbon electrode (GCE) modified Apt-NH@V2O5/rGO used Hg(II) differential pulse voltammetry (DPV). aptasensor exhibited sensitivity selectivity toward detection, limit (LOD) 5.57 nM, which is below maximum permissible established WHO rivers (30 nM). also significant stability good repeatability.

Язык: Английский

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Green synthesis of carbon quantum dots (CQDs) from beetroot by carbonization method and their application in metal ion sensing (Cu2+)

MRS Advances, Год журнала: 2025, Номер unknown

Опубликована: Апрель 14, 2025

Язык: Английский

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