A review on emerging composite materials for cesium adsorption and environmental remediation on the latest decade

Chen, Shangqing; Hu, Jiayin; Han, Senjian; Guo, Yafei; Belzile, Nelson

doi:10.1016/j.seppur.2020.117340

Cited by 107 publications

(29 citation statements)

References 125 publications

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“…It is highly migratory in the environment, causing cell damage, cancer, and even death in humans 2 . Once radioactive cesium is released into the environment, it will be extremely polluting and cause harm to the entire ecosystem 3 . For example, the Fukushima nuclear accident released a large number of radioactive Cs + ions into the environment, causing total radioactivity levels in some fish to remain above the limit (100 Bq/kg) until now 4 .…”

Section: Introductionmentioning

confidence: 99%

“…The key for the disposal of HLLWs is the removal of strongly radioactive ions (such as 137 Cs) to reduce their radioactivity level 6 . The separated and purified 137 Cs can also be prepared as isotope sources and reused in agriculture and medical fields 3 . However, HLLWs are extremely complex, containing not only Cs + , but also Sr 2+ , Ln 3+ , Na + and so on 6 , 8 .…”

Section: Introductionmentioning

confidence: 99%

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Highly selective cesium(I) capture under acidic conditions by a layered sulfide

Tang

Jin

et al. 2022

Nat Commun

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Radiocesium remediation is desirable for ecological protection, human health and sustainable development of nuclear energy. Effective capture of Cs+ from acidic solutions is still challenging, mainly due to the low stability of the adsorbing materials and the competitive adsorption of protons. Herein, the rapid and highly selective capture of Cs+ from strongly acidic solutions is achieved by a robust K+-directed layered metal sulfide KInSnS4 (InSnS-1) that exhibits excellent acid and radiation resistance. InSnS-1 possesses high adsorption capacity for Cs+ and can serve as the stationary phase in ion exchange columns to effectively remove Cs+ from neutral and acidic solutions. The adsorption of Cs+ and H3O+ is monitored by single-crystal structure analysis, and thus the underlying mechanism of selective Cs+ capture from acidic solutions is elucidated at the molecular level.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Highly selective cesium(I) capture under acidic conditions by a layered sulfide

Tang

Jin

et al. 2022

Nat Commun

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“…[49][50][51] However, there have been few reviews that have specially focused on GO-based nanomaterials for uranium adsorption. [52][53][54][55][56][57][58][59][60][61][62][63][64][65][66][67] Thereby, a needful review on the recent progress of GO-based nanomaterials for uranium adsorption is expected to promote the development of GO-based nanomaterials in the removal and recovery applications of uranium from aqueous solution. In this review, the adsorption capacities of GO-based nanomaterials are introduced.…”

Section: Introductionmentioning

confidence: 99%

Graphene Oxide-based Nanomaterials for Uranium Adsorptive Uptake

Liu¹,

Mao²

2021

ES Mater. Manuf.

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The growth of nuclear power generation and the necessity to acquire uranium reserves for energy security and pollution regulation for environmental protection put much emphasis on the removal and recovery of uranium from aqueous solutions. Adsorption has been proved to be a promising method for this purpose method because of its high adsorption efficiency, easy operation, low cost, reusability and availability of massive adsorbents. Among a wide variety of adsorbents, graphene oxide (GO) has demonstrated excellent adsorption potential for uranium uptake and recovery due to its unique 2D structure, high specific surface area and abundant oxygen-containing functional groups. Regarding the functional groups, it can make GO with high dispersion and hydrophilicity and participate in the complexation of uranium, leading to high adsorption efficiency for uranium. In this review, the research status and progress of GO-based nanomaterials for uranium adsorption are summarized. Their adsorption capacities, influencing factors, kinetics, isotherms and thermodynamics are compared and discussed. The microscopic mechanisms of uranium adsorption onto these GO-based nanomaterials are elaborated at molecular level by spectral analysis, surface complexation models, and theoretical calculations. Meanwhile, the challenges and research trends in the study of uranium adsorption by GO-based nanomaterials are pointed out. We believe that our focused review provides not only a summarizing reference on the current status of uranium removal and recovery by GObased nanomaterials, but also future directions for related follow-up research and practical applications.

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“…Most heavy metals (HMs) are soft metals classified as chalcophiles, a group of elements with a specific affinity for soft chalcogenides-S, Se, and Te according to the Pearson acidbase concept. This high sulfide affinity for HMs has been exploited with the emergence of multiple metal sulfide adsorbents (MSAs) [1,2].…”

Section: Introductionmentioning

confidence: 99%

Aqueous Adsorption of Heavy Metals on Metal Sulfide Nanomaterials: Synthesis and Application

Kromah

Zhang

2021

Water

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Heavy metals pollution of aqueous solutions generates considerable concerns as they adversely impact the environment and health of humans. Among the remediation technologies, adsorption with metal sulfide nanomaterials has proven to be a promising strategy due to their cost-effective, environmentally friendly, surface modulational, and amenable properties. Their excellent adsorption characteristics are attributed to the inherently exposed sulfur atoms that interact with heavy metals through various processes. This work presents a comprehensive overview of the sequestration of heavy metals from water using metal sulfide nanomaterials. The common methods of synthesis, the structures, and the supports for metal sulfide nano-adsorbents are accentuated. The adsorption mechanisms and governing conditions and parameters are stressed. Practical heavy metal remediation application in aqueous media using metal sulfide nanomaterials is highlighted, and the existing research gaps are underscored.

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A review on emerging composite materials for cesium adsorption and environmental remediation on the latest decade

Cited by 107 publications

References 125 publications

Highly selective cesium(I) capture under acidic conditions by a layered sulfide

Highly selective cesium(I) capture under acidic conditions by a layered sulfide

Graphene Oxide-based Nanomaterials for Uranium Adsorptive Uptake

Aqueous Adsorption of Heavy Metals on Metal Sulfide Nanomaterials: Synthesis and Application

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