Zwitterion Functionalized Graphene Oxide/Polyacrylamide/Polyacrylic Acid Hydrogels with Photothermal Conversion and Antibacterial Properties for Highly Efficient Uranium Extraction from Seawater

Advanced Functional Materials, Год журнала: 2023, Номер 33(32)

Опубликована: Май 5, 2023

Abstract In this study, graphene oxide (GO) and polyacrylamide/polyacrylic acid (PAM/PAA) are used to prepare hydrogels with photothermal conversion properties for highly efficient uranium extraction from seawater. Zwitterionic 2‐methacryloyloxy ethyl phosphorylcholine (MPC) is introduced in the PAM/PAA/GO hydrogel obtain PAM/PAA/GO/MPC (PAGM), exhibiting good antibacterial properties. PAGM demonstrates specific adsorption of (VI) (U(VI)). Under light conditions, capacity reaches 196.12 mg g −1 (pH = 8, t 600 min, C 0 99.8 L , m/v 0.5 ). The only 160.29 under dark conditions 22.5% higher than that dark. process fitted using Langmuir pseudo‐second‐order models. Furthermore, exhibits repeatability stability after five adsorption–desorption cycles. a U(VI) 6.1 storage one month natural X‐ray photoelectron spectroscopy (XPS) results demonstrate coordination amino, carboxyl, hydroxyl groups primary mechanism adsorption. confirmed through detailed density functional theory calculations. durability, high efficiency, properties, Thus, it promising candidate

Язык: Английский

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The construction of magnetic hydroxyapatite-functionalized pig manure-derived biochar for the efficient uranium separation

Chemical Engineering Journal, Год журнала: 2023, Номер 457, С. 141367 - 141367

Опубликована: Янв. 6, 2023

Язык: Английский

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Modified side-chain COFs construct built-in electric fields with low exciton binding energy for photo-reduced uranium

Chemical Engineering Journal, Год журнала: 2024, Номер 483, С. 149339 - 149339

Опубликована: Фев. 5, 2024

Язык: Английский

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Combining Electrosorption and Electrochemical Reduction Mechanisms for Uranium Removal Using 1,2,3,4-Butane Tetracarboxylic Acid-Modified MIL-101: An In-Depth Exploration of Uranyl–Adsorbent Interactions

Inorganic Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Янв. 23, 2025

Extracting uranium from nuclear wastewater is vital for environmental and human health protection. However, despite progress in extraction, there remains a demand an optimized adsorbent with improved capability, efficiency, selectivity. To bridge this gap, 1,2,3,4-butane tetracarboxylic acid (BTCA)-modified MIL-101 was synthesized through simple hydrothermal reaction between amino-modified (MIL-101-NH2) BTCA. Density Functional Theory calculations validated the formation of stable coordination bonds hydrogen bond network, bolstering adsorption capacity. further enhance capacity, influence electric field on performance investigated. Studies revealed that uranyl ion removal under involves both electrosorption electroreduction pathways. This dual mechanism not only significantly increases capacity 221.1 mg g-1 to 331.4 but also improves efficiency. These insights our understanding effective foster development sustainable, ecofriendly technologies energy field.

Язык: Английский

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Ultralight carbon aerogel composites derived from MOFs and cross-linked chitosan: Synthesis, characterization, and U(VI) adsorption

Chemical Engineering Journal, Год журнала: 2022, Номер 455, С. 140749 - 140749

Опубликована: Дек. 5, 2022

Язык: Английский

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Ion-imprinted nanocellulose aerogel with comprehensive optimized performance for uranium extraction from seawater

Chemical Engineering Journal, Год журнала: 2023, Номер 475, С. 146048 - 146048

Опубликована: Сен. 13, 2023

Язык: Английский

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Remediation of uranium(VI)-containing wastewater based on a novel graphene oxide/hydroxyapatite membrane

Journal of Membrane Science, Год журнала: 2023, Номер 675, С. 121543 - 121543

Опубликована: Март 5, 2023

Язык: Английский

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Construction of dopamine supported Mg(Ca)Al layered double hydroxides with enhanced adsorption properties for uranium

The Science of The Total Environment, Год журнала: 2023, Номер 881, С. 163525 - 163525

Опубликована: Апрель 15, 2023

Язык: Английский

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Synthesis of novel phosphate-based hypercrosslinked polymers for efficient uranium extraction from radioactive wastewater

Journal of Water Process Engineering, Год журнала: 2023, Номер 53, С. 103582 - 103582

Опубликована: Март 7, 2023

Язык: Английский

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Composite magnetic sorbents based on magnetic Fe3O4 coated by Zn and Al layered double hydroxide for U(VI) removal from aqueous media

Journal of Radioanalytical and Nuclear Chemistry, Год журнала: 2024, Номер 333(3), С. 1213 - 1230

Опубликована: Фев. 1, 2024

Язык: Английский

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