Enrichment of uranium in seawater by glycine cross-linked graphene oxide membrane

Chu, Jian; Huang, Qinggang; Dong, Yuhua; Yao, Ze; Wang, Jieru; Qin, Z.; Zhi-gang, Ning; Xie, Jianjun; Tian, Wei; Yao, Huijun; Bai, Jing

doi:10.1016/j.cej.2022.136602

Cited by 60 publications

(6 citation statements)

References 52 publications

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“…Chu et al successfully fabricated a glycine cross-linked graphene oxide (GO-Gly) membrane for U enrichment in seawater . The authors optimized the membrane fabrication conditions to ensure a stable membrane structure with a narrow interlayer space distribution.…”

Section: Inorganic Substrate-based Sorbents For Selective Uesmentioning

confidence: 99%

Engineered Sorbents for Selective Uranium Sequestration from Seawater

Singh,

Asim,

Salkenova

et al. 2024

ACS EST Water

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The sustainable energy supply to the global community remains a great challenge due to the mounting incessant energy demand and environmental concerns associated with fossil fuel-based energy. As per the International Atomic Energy Agency (IAEA), nuclear power will be the only reliable sustainable energy source in the future, and there will be a high demand for uranium (U). Therefore, the exploitation of U from seawater is essential to supply nuclear energy for thousands of years globally. Herein, we discuss some key developments on the design and application of potential sorbents for effective uranium extraction from seawater (UES) under different experimental conditions. Specifically, we focus on the synthesis, characterization, and application of a) organic sorbents (metal− organic frameworks (MOFs), covalent organic frameworks (COFs), membranes, and hydrogels) and b) inorganic substrate (graphene and silica) based composite sorbents. Later, we discuss selected studies encompassing the mechanistic understating of efficient UES using potential sorbents through various analytical and theoretical/computational approaches. Finally, we present future challenges that need to be addressed for the design of compatible sorbents with exceptional properties for the effective UES. We believe that this paper can expand our understanding of the design and application of suitable sorbents for selective UES.

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Section: Inorganic Substrate-based Sorbents For Selective Uesmentioning

confidence: 99%

Engineered Sorbents for Selective Uranium Sequestration from Seawater

Singh,

Asim,

Salkenova

et al. 2024

ACS EST Water

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“…Notably, it has made signicant strides in diverse elds such as seawater desalination, metal ion separation, gas separation, radioactive material separation, and isotope separation, establishing itself as a pivotal element in the realm of membrane-based separation technologies. [19][20][21][22][23][24][25][26][27][28][29] Despite the sustained advancements in the realm of small molecule separation achieved by 2D lamellar membranes, a universally accepted theoretical framework for elucidating the separation mechanisms remains elusive. 15 Predominantly, extant theories underscore the signicance of the size screening effect in facilitating the selective separation of 2D lamellar membranes.…”

Section: Introductionmentioning

confidence: 99%

“…Notably, it has made significant strides in diverse fields such as seawater desalination, metal ion separation, gas separation, radioactive material separation, and isotope separation, establishing itself as a pivotal element in the realm of membrane-based separation technologies. 19–29…”

Section: Introductionmentioning

confidence: 99%

Designing biomimetic two-dimensional channels for uranium separation from seawater

Liang,

Zhang,

Wang

et al. 2024

Chem. Sci.

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“…Over the years, some of effective materials for uranium adsorption have been reported. Such as, graphene oxide‐based materials, [ 1 ] metal organ framework (MOF), [ 5 ] covalent organic framework (COF), [ 5 ] fibers, [ 5 ] poly (divinylyl‐vinylphosphonic acid) (P(DVB‐VPA)), [ 6 ] poly ( N , N ‐methylene bis(2‐propenamide)‐vinyl imidazole) (Fe 3 O 4 /P(MB‐VIM)), [ 7 ] Fe 3 O 4 /poly (diallylamine‐di(methacryloxyethyl)phosphate) (Fe 3 O 4 /P(DMAA‐DMP)), [ 8 ] AO‐Fe 3 O 4 /P (glycidyl methacrylate‐acrylic acid‐methyl methacrylate) (AO‐Fe 3 O 4 /P(GMA‐AA‐MMA)), [ 9 ] Fe 3 O 4 @SiO 2 /poly (trimethylolpropane trimethacrylate – vinylphosphonic acid) (Fe 3 O 4 @SiO 2 /P (TRIM‐VPA)), [ 10 ] etc. Nevertheless, because of the extremely low concentration of uranium and multiple interfering metal ions and microbial species in seawater, it is necessary to develop new highly selective and efficient adsorbents.…”

Section: Introductionmentioning

confidence: 99%

“…However, the proven land uranium deposits are sufficient for operating the existing nuclear power plants for only 80–120 years. [ 1 ] As per statistics, seawater contains ≈4.5 billion tons of uranium, which is hundreds of times greater than the land uranium deposits. [ 2 ] Therefore, extracting uranium from seawater is an important step for the development of future nuclear energy.…”

Section: Introductionmentioning

confidence: 99%

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

Sun

Qin

et al. 2023

Adv Funct Materials

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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 to obtain PAM/PAA/GO/MPC (PAGM), exhibiting good antibacterial properties. PAGM demonstrates efficient and specific adsorption of uranium (VI) (U(VI)). Under light conditions, the adsorption capacity of PAGM reaches 196.12 mg g−1 (pH = 8, t = 600 min, C0 = 99.8 mg L−1, m/v = 0.5 g L−1). The adsorption capacity is only 160.29 mg g−1 under dark conditions (pH = 8, t = 600 min, C0 = 99.8 mg L−1, m/v = 0.5 g L−1). The adsorption capacity of light is 22.5% higher than that of dark. The adsorption process is fitted using the Langmuir and pseudo‐second‐order models. Furthermore, PAGM exhibits good repeatability and stability after five adsorption–desorption cycles. PAGM exhibits a U(VI) adsorption capacity of 6.1 mg g−1 after storage for one month in natural seawater. The X‐ray photoelectron spectroscopy (XPS) results demonstrate that the coordination of the amino, carboxyl, and hydroxyl groups with U(VI) is the primary mechanism of U(VI) adsorption. The mechanism is confirmed through detailed density functional theory calculations. PAGM demonstrates durability, high efficiency, photothermal conversion properties, and antibacterial properties. Thus, it is a promising candidate for uranium extraction from seawater.

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Enrichment of uranium in seawater by glycine cross-linked graphene oxide membrane

Cited by 60 publications

References 52 publications

Engineered Sorbents for Selective Uranium Sequestration from Seawater

Engineered Sorbents for Selective Uranium Sequestration from Seawater

Designing biomimetic two-dimensional channels for uranium separation from seawater

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

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