Nanoemulsion assembly toward vaterite mesoporous CaCO3 for high-efficient uranium extraction from seawater

Ma, Dongsheng; Xu, Xiaonan; Li, Zhenwen; Peng, Hong; Cai, Dong; Wang, Dong; Qin, Yuwen

doi:10.1016/j.jhazmat.2022.128695

Cited by 28 publications

(4 citation statements)

References 57 publications

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“…At the same time, inorganic materials as adsorption materials have the advantages of simple preparation, a large specific surface area, and easy adsorption. Therefore, inorganic metal materials are widely used in the field of uranium extraction from seawater [26]. The antibacterial mechanism of inorganic metal materials is mainly divided into two types.…”

Section: Inorganic Metal Particle Antibacterial Materialsmentioning

confidence: 99%

Recent Advances in Antibiofouling Materials for Seawater-Uranium Extraction: A Review

Liu,

An,

et al. 2023

Materials

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Nuclear power has experienced rapid development as a green energy source due to the increasing global demand for energy. Uranium, as the primary fuel for nuclear reactions, plays a crucial role in nuclear energy production, and seawater-uranium extraction has gained significant attention. However, the extraction of uranium is usually susceptible to contamination by microorganisms, such as bacteria, which can negatively affect the adsorption performance of uranium adsorption materials. Therefore, an important challenge lies in the development of new antibacterial and antiadhesion materials to inhibit the attachment of marine microorganisms. These advancements aim to reduce the impact on the adsorption capability of the adsorbent materials. This paper reviews the antibiofouling materials used for extracting seawater uranium, and corresponding mechanisms are discussed.

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Section: Inorganic Metal Particle Antibacterial Materialsmentioning

confidence: 99%

Recent Advances in Antibiofouling Materials for Seawater-Uranium Extraction: A Review

Liu,

An,

et al. 2023

Materials

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“…Metal oxides possess the properties of a semiconductor with a particular band gap and high crystallinity, and are potentially applied in photocatalysis, gas sensing, photothermal therapy, and catalyst carriers. Mesoporous metal oxides with high porosity and large exposure of surface unsaturated metal atoms can definitely enhance their properties and thus improve their performance. − However, the design synthesis of mesoporous metal oxides with high crystallization is a great challenge because the high-temperature crystallization usually inevitably induces mesostructure collapse.…”

Section: Introductionmentioning

confidence: 99%

A Novel Molten Salt Mediated Synthesis of Mesoporous Metal Oxides with High Crystallization

Ma,

Lu,

Zhou

et al. 2024

ACS Cent. Sci.

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The controlled synthesis of mesoporous metal oxides remains a great challenge because the uncontrolled assembly process and high-temperature crystallization can easily destroy the mesostructure. Herein, we develop a facile, versatile, low-cost, and controllable molten salt assisted assembly strategy to synthesize mesoporous metal oxides (e.g., CeO 2 , ZrO 2 , SnO 2 , Li 2 TiO 3 ) with high surface area (115−155 m 2 / g) and uniform mesopore size (3.0 nm). We find this molten salt mediated assembly enables the desolvation of the precursors and forms bare metal ions, enhances their coordination interaction with the surfactant, and promotes their assembly into a mesostructure. Furthermore, the molten salt assisted crystallization process can lower the collision probability of the target metal atom, inhibit its further growth into large crystals, and achieve a well-maintained mesostructure with high crystallization. Furthermore, this method can be expanded to synthesize various structured mesoporous metal oxides, including hollow spheres, nanotubes, and nanosheets by introducing the carbon template. The obtained mesoporous CeO 2 microspheres loaded with Cu species exhibit excellent antibacterial performance and superior catalytic activity for the hydrogenation of nitrophenol with high conversion and cycling stability.

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“…It is widely believed that adsorption technique is suitable for the U(VI) extraction task. 8,9 Constructing a U(VI) extraction adsorbent suitable for a harsh marine environment is the immediate requirement. 10−12 Marine biofouling is the leading cause of the harsh marine environment and is a big challenge for the U(VI) extraction task, 13−15 which can disrupt the extraction process, reduce the capacity and selectivity, and increase the energy consumption.…”

Section: Introductionmentioning

confidence: 99%

“…Many strategies were proposed over the past few decades to achieve the cost-effective extraction of U(VI) from seawater. It is widely believed that adsorption technique is suitable for the U(VI) extraction task. , Constructing a U(VI) extraction adsorbent suitable for a harsh marine environment is the immediate requirement. − …”

Section: Introductionmentioning

confidence: 99%

Application of Natural Antibacterial Plants in the Extraction of Uranium from Seawater

Zhang,

Gao,

Yuan

et al. 2024

ACS Appl. Bio Mater.

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Marine biofouling directly affects the performance and efficiency of uranium (U(VI)) extraction from seawater. Compared to traditional chemical methods, natural plant extracts are generally biodegradable and nontoxic, making them an environmentally friendly alternative to synthetic chemicals in solving the marine biofouling problem. The effectiveness of natural antibacterial plants (i.e., pine needle, peppermint, Acorus gramineus Soland, Cacumen platycladi, and wormwood) in solving the marine biofouling problem was evaluated in this work. Experimental results showed that natural antibacterial plants could kill Vibrio alginolyticus in solution and effectively solve the marine biofouling problem of U(VI) extraction. To improve the adsorption capacity of natural plants for U(VI) in seawater, poly(vinylphosphonic acid) (PVPA) was modified on natural antibacterial plant surfaces by irradiation grafting technology. PVPA and natural antibacterial plants work as active sites and base materials for the U(VI) extraction material, respectively. The recovery performance of PVPA/pine needle for U(VI) was preliminarily studied. Results show that the adsorption of U(VI) on PVPA/pine needle follows pseudo-second-order and Langmuir models, and the maximum adsorption capacity is 111 mg/g at 298 K and pH 8.2.

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Nanoemulsion assembly toward vaterite mesoporous CaCO3 for high-efficient uranium extraction from seawater

Cited by 28 publications

References 57 publications

Recent Advances in Antibiofouling Materials for Seawater-Uranium Extraction: A Review

Recent Advances in Antibiofouling Materials for Seawater-Uranium Extraction: A Review

A Novel Molten Salt Mediated Synthesis of Mesoporous Metal Oxides with High Crystallization

Application of Natural Antibacterial Plants in the Extraction of Uranium from Seawater

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