Removal of toxic heavy metals from aquatic systems using low-cost and sustainable biochar: A review

Desalination and Water Treatment, Год журнала: 2024, Номер 320, С. 100757 - 100757

Опубликована: Сен. 7, 2024

Язык: Английский

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Advancements in application of modified biochar as a green and low-cost adsorbent for wastewater remediation from organic dyes

Royal Society Open Science, Год журнала: 2024, Номер 11(5)

Опубликована: Май 1, 2024

Synthetic organic dyes, which are resistant to biodegradation, pose a notable health risk, potentially leading cancer and respiratory infections. Researchers have addressed this concern by exploring physicochemical methods remove dyes from wastewater. A particularly promising solution involves modified biochar adsorbents, demonstrate high efficiency in dye removal. Biochar, charcoal-like material derived biomass pyrolysis, offers advantages such as low cost, eco-friendliness, reusability. Beyond its role sustainable soil remediation, proves effective removing wastewater after undergoing physical or chemical modification. Acid–base activation metal–heteroatom impregnation enhances biochar's adsorption capacity. This comprehensive review examines the attributes of biochar, common for production modification, impacts raw materials, pyrolysis temperature, heating rate residence time. It further elucidates mechanism removal assessing factors influencing efficiency, including feedstock, pH, particle size, initial concentration, dosage reaction explores challenges, opportunities, reusability regeneration treating also discusses recent advances using adsorption-based biochar. The ultimately advocates enhancing performance through post-modification.

Язык: Английский

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Porous hierarchical sphere g-C3N4 with coordinated Co-ions as an efficient and stable self-Fenton photocatalyst for the removal of antibiotic

Separation and Purification Technology, Год журнала: 2024, Номер 354, С. 129456 - 129456

Опубликована: Сен. 1, 2024

Язык: Английский

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Investigating the structural, dielectric, optical and photocatalytic properties of carbon dots and palladium, platinum decorated carbon dots

Journal of Molecular Structure, Год журнала: 2024, Номер 1312, С. 138488 - 138488

Опубликована: Апрель 29, 2024

Язык: Английский

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Hydroxyl functionalized hexagonal boron nitride quantum dots as nanozyme for pesticides sensing through dual colorimetric and fluorometric platform: A combined experimental and theoretical study

Chemical Engineering Journal, Год журнала: 2024, Номер unknown, С. 156365 - 156365

Опубликована: Окт. 1, 2024

Язык: Английский

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Graphitic carbon nitride/1-pyrenebutyric acid N-hydroxysuccinimide/polythiophene nanocomposite photoelectrochemical biosensor for CA 19-9 detection

Talanta, Год журнала: 2025, Номер 293, С. 128065 - 128065

Опубликована: Апрель 19, 2025

A photoelectrochemical (PEC) biosensor composed entirely of carbon nanomaterials was synthesized to detect carbohydrate antigen 19-9 (CA 19-9). The platform integrated graphitic nitride (GCN), known for its light sensitivity, polythiophene (PTh), an organic conductive and optically active material, 1-pyrenebutyric acid N-hydroxysuccinimide (PBASE), which functions both as a biolinker conjugate CA antibody electron mediator facilitate transfer from GCN PTh. formation Schottky heterojunction between PTh reduced the bandgap 2.66 1.96 eV, enhanced photogenerated electrons cathodic photocurrent generation. improvement charge due π-π stacking pyrene group PBASE is confirmed by cyclic voltammetry (CV), impedance spectroscopy (EIS), chronoamperometry (CA) findings. highest current 1.31 μA observed combination 5 wt% with GCN/PBASE ratio 1:0.5. Besides evaluating mobility GCN/PBASE/PTh, CV, EIS, were also used evaluate sensor performance. Optimization studies revealed that 0.6 μg 1 h antigen-antibody immobilization time significantly improved response. GCN/PBASE/PTh demonstrated high sensitivity across concentration 50-1000 U/ml detection limit low 0.052 U/ml. reported working range within limits required diagnostic testing patients hepatic heart problems well post-treatment monitoring colorectal pancreatic cancer patients.

Язык: Английский

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Synergistic Wastewater Detoxification Using h‐BN and g‐C₃N₄: Understanding the Photo‐Assisted Charge Carrier Dynamics

ChemistrySelect, Год журнала: 2025, Номер 10(16)

Опубликована: Апрель 1, 2025

Abstract A hybrid material combining graphene‐like hexagonal boron nitride (h‐BN) and graphitic carbon (g‐C 3 N 4 ), activated by visible light, was synthesized using a straightforward pyrolysis method. The structure confirmed through various characterization techniques like XRD, SEM, TEM, etc. Evaluations rhodamine B (RhB) degradation under light revealed outstanding performance, with the photocatayst containing 0.5% h‐BN in g‐C achieving nearly complete within 60 min while pristine showed 55% similar experimental conditions rate of increased up to three times after incorporation h‐BN. This exceptional performance attributed efficient separation photoinduced charge carriers. hybrid's significant specific surface area facilitated ample surface‐active sites for pollutant adsorption degradation. Moreover, its stable appropriate bandgap contributed enhanced efficiency removal. study proposes mechanism based on these findings, marking advancement 2D/2D photocatalyst systems both energy environmental applications.

Язык: Английский

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Bimetallic oxide (CoNi2O4) nanozyme as ROS independent for ascorbic acid detection with computational study

Talanta, Год журнала: 2025, Номер 295, С. 128315 - 128315

Опубликована: Май 15, 2025

Язык: Английский

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Exponential Developments of Quantum dots Ecosystem for Solar energy Conversion and Photocatalytic Reactions: From Photoanode Design to Renewable Energy Applications

Materials Research Bulletin, Год журнала: 2024, Номер unknown, С. 113223 - 113223

Опубликована: Ноя. 1, 2024

Язык: Английский

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Ginger-derived polymer modified with Mn-doped zinc sulphide quantum dots as photocatalyst for pharmaceutical pollutants elimination with DFT studies

Journal of Molecular Liquids, Год журнала: 2024, Номер unknown, С. 126766 - 126766

Опубликована: Дек. 1, 2024

Язык: Английский

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