Accessing renewable magnetic cellulose nanofiber adsorbent to enhance separation efficiency for adsorption and recovery of Cd2+

International Journal of Biological Macromolecules, Год журнала: 2025, Номер unknown, С. 139765 - 139765

Опубликована: Янв. 1, 2025

Язык: Английский

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Controllable Preparation of Low-Cost Coal Gangue-Based SAPO-5 Molecular Sieve and Its Adsorption Performance for Heavy Metal Ions

Nanomaterials, Год журнала: 2025, Номер 15(5), С. 366 - 366

Опубликована: Фев. 27, 2025

With the advancement of industrial production and urban modernization, pollution from heavy metal ions accumulation solid waste have become critical global environmental challenges. Establishing an effective recycling system for removing metals wastewater is essential. Coal gangue was used in this study as primary material synthesis a fully coal gangue-based phosphorus-silicon-aluminum (SAPO-5) molecular sieve through hydrothermal process. The SAPO-5 characterized several methods, including X-ray diffraction (XRD), scanning electron microscopy (SEM), BET surface analysis, Fourier-transform infrared (FT-IR) spectroscopy, photoelectron spectroscopy (XPS), to examine its mineral phases, microstructure, pore characteristics, structure. Adsorption performance towards with Cd2+ Pb2+ investigated. It found that adsorption processes these are well described by both pseudo-second-order model Langmuir isotherm. According model, exhibited maximum capacities 93.63 mg·g-1 157.73 Pb2+. After five cycles, retained strong stability adsorbing Pb2+, residual 77.03 138.21 excellent mainly attributed mesoporous channel effects, complexation -OH functional groups, electrostatic attraction.

Язык: Английский

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Amino-functionalized Magnetic Humic Acid Nanoparticles for Enhanced Pb(II) Adsorption: Mechanism Analysis and Machine Learning Prediction

Journal of environmental chemical engineering, Год журнала: 2024, Номер 12(5), С. 113956 - 113956

Опубликована: Авг. 30, 2024

Язык: Английский

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Advances in Selective Heavy Metal Removal from Water Using Biochar: A Comprehensive Review of Mechanisms and Modifications

Journal of environmental chemical engineering, Год журнала: 2025, Номер unknown, С. 116099 - 116099

Опубликована: Март 1, 2025

Язык: Английский

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Hydroxyapatite immobilized on peanut shell biochar toward Pb2+ efficient capture: Performance and mechanism

Colloids and Surfaces A Physicochemical and Engineering Aspects, Год журнала: 2025, Номер unknown, С. 136570 - 136570

Опубликована: Март 1, 2025

Язык: Английский

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Advances in heavy metal wastewater treatment with biochar adsorption

Biofuels Bioproducts and Biorefining, Год журнала: 2025, Номер unknown

Опубликована: Март 13, 2025

Abstract In recent years there has been a growing interest in biochar as an efficient adsorbent for heavy metal wastewater treatment because of its unique physicochemical properties and broad applicability. Biochar, produced through the pyrolysis waste biomass, exhibits well developed pore structure, high specific surface area, abundant functional groups, which collectively confer capacity adsorption metals. This review summarizes current state knowledge on preparation methods, properties, mechanisms removal. It highlights impact characteristics such pore‐size distribution, temperature, performance. also examines influence solution conditions, including pH, ionic strength, adsorption. The explores synergistic effects with other technologies, anaerobic digestion membrane technology, to enhance efficiency. Despite significant progress, challenges remain optimizing capacity, regeneration, recycling. study provides comprehensive insights into potential limitations treatment; it identifies gaps outlines future research directions. By elucidating relationship between performance removal, aim this is guide selection appropriate various applications.

Язык: Английский

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Assessing the efficiency and reusability of zirconium-based MOF-biochar composite for the removal of Pb (II) and Cd (II) in single and multi-ionic systems

Journal of Environmental Management, Год журнала: 2025, Номер 380, С. 125122 - 125122

Опубликована: Март 26, 2025

Язык: Английский

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Enhanced Cadmium Adsorption by Silicate-Modified Biochar Derived from Sawdust: Mechanisms and Performance Analysis

Surfaces and Interfaces, Год журнала: 2025, Номер unknown, С. 106430 - 106430

Опубликована: Апрель 1, 2025

Язык: Английский

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Silicon-modified peanut shell biochar: novel passivation to mitigate cadmium bioaccumulation in spinach

Journal of environmental chemical engineering, Год журнала: 2024, Номер unknown, С. 114995 - 114995

Опубликована: Дек. 1, 2024

Язык: Английский

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Adsorptive immobilization of cadmium and lead using unmodified and modified biochar: A review of the advances, synthesis, efficiency and mechanisms

Chemosphere, Год журнала: 2024, Номер 370, С. 143988 - 143988

Опубликована: Дек. 28, 2024

Язык: Английский

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