K2xMnxSn3−xS6 (x = 0.5–0.95) (KMS-1) immobilized on the reduced graphene oxide as KMS-1/r-GO aerogel to effectively remove Cs+ and Sr2+ from aqueous solution

Gupta, Kiran; Yuan, Baoling; Chen, Chen; Naresh, V.; Fu, Ming‐Lai

doi:10.1016/j.cej.2019.03.109

Cited by 43 publications

(14 citation statements)

References 69 publications

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“…In another study, Fu et al found that a new type of immobilized layered composite KMS-1/r-GO (KGO) can be prepared by hydrothermal growth of layered structure K 2x Mn x Sn 3Àx S 6 (KMS-1) on RGO sheets. 133 The composite could remove radioactive ions Cs + and Sr 2+ , by ion exchange and surface bonding interaction, and the maximum adsorption capacities of the two ions were 338.18 and 220.12 mg g À1 , respectively. In addition, the adsorbent showed good adsorption performance for radioactive ions in a wide range of pH, so the adsorbent had great significance in the removal of radioactive ions in wastewater.…”

Section: Adsorption and Removal Of Pollutantsmentioning

confidence: 94%

Two-dimensional material-based functional aerogels for treating hazards in the environment: synthesis, functional tailoring, applications, and sustainability analysis

et al. 2022

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Section: Adsorption and Removal Of Pollutantsmentioning

confidence: 94%

Two-dimensional material-based functional aerogels for treating hazards in the environment: synthesis, functional tailoring, applications, and sustainability analysis

et al. 2022

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“…The few examples of TMOs possessing layered structures include RuO 2 , [ 51 ] Na 2 Ti 3 O 7 , [ 61 ] V 2 O 5 , [56b,62] Bi 2 Sr 2 CaCu 2 O x , [ 63 ] WO 3 , [ 64 ] LiCoO 2 , [ 65 ] LiCo 0.95 Mg 0.05 O 2 , [ 65 ] MoO 3 , [ 66 ] K 0.45 MnO 2 , [ 67 ] KCa 2 Nb 3 O 10 , [ 68 ] K 2 Ln 2 Ti 3 O 10 , [ 69 ] KLnNb 2 O 7 , [ 69 ] RbLnTa 2 O 7 , [ 69 ] HNbMoO 6 , [ 70 ] MnO 2 [ 53,71 ] , etc. Compared with TMOs, more TMCs are of layered structures, e.g., MoS 2 , [ 72 ] ZnIn 2 S 4 , [ 73 ] TaS 2 , [ 74 ] TiS 2 , [ 75 ] WS 2 , [ 76 ] In 2 S 3 , [ 77 ] SnS, [ 78 ] SnS 2 , [ 79 ] SnSe, [ 80 ] SnSe 2 , [ 81 ] K 2 x Mn x Sn 3− x S 6 , [ 82 ] H 2 x Mn x Sn 3− x S 6 , [ 83 ] K 2 x Sn 4− x S 8− x , [ 84 ] etc. The below sections summarize the recent progress in using exfoliation to prepare 2D TMO and TMC NSs of layered structures ( Figure ).…”

Section: Synthesis and Growth Of Freestanding 2d Tmos And Tmcsmentioning

confidence: 99%

Two‐Dimensional Transition Metal Oxides and Chalcogenides for Advanced Photocatalysis: Progress, Challenges, and Opportunities

et al. 2020

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Sunlight‐driven catalytic reactions are appealing for resolving energy and environmental problems. Transition metal oxides (TMOs) and chalcogenides (TMCs) comprise one of the most popular categories of photocatalysts, thanks to their high stability, low cost, Earth abundance, and outstanding catalytic activity. Downsizing TMOs and TMCs to 2D materials offers additional opportunities to finely tune their surface, electronic, and catalytic properties. However, 2D TMOs and TMCs fall into a less mature field than other well‐established 2D materials. Less is known about their “form‐to‐function” relationship, and mechanisms for their synthesis await more research. Herein, the progress toward the rational design of layered and nonlayered 2D TMOs and TMCs is summarized, as well as principles to engineer their nanosheets (NSs) into 3D architectures for practical application. The formation mechanisms and crystal growth models of these 2D materials are included. The key factors that determine the electronic, surface structures, and catalytic properties of 2D TMOs and TMCs are examined in particular, which are key considerations in tuning their performance in light absorption, charge carrier transfer/separation, molecule capture and activation, etc. Finally, the present challenges and future research directions in this promising field are illustrated.

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“…To date, however, there are only a few examples of metal sulfide-based composites for ion removal, including KMS-1/PAN (KMS-1, K 2 x Mn x Sn 3– x S 6 , x = 0.5–0.95; PAN. polyacrylonitrile), KMS-1/r-GO (r-GO: reduced graphene oxide), PAN-chalcogel, and KMS-2/CA (KMS-2: K 2 x Mg x Sn 3– x S 6 , x = 0.5–1; CA. calcium alginate). , Among them, KMS-1/PAN and KMS-1/r-GO were studied for the removal of Cs + or Sr 2+ ions through batch experiments, whereas PAN-chalcogel and KMS-2/CA , were loaded in a column to investigate removal of I – ions and heavy metal ions such as Pb 2+ , respectively.…”

Section: Introductionmentioning

confidence: 99%

“…polyacrylonitrile), KMS-1/r-GO (r-GO: reduced graphene oxide), PAN-chalcogel, and KMS-2/CA (KMS-2: K 2 x Mg x Sn 3– x S 6 , x = 0.5–1; CA. calcium alginate). , Among them, KMS-1/PAN and KMS-1/r-GO were studied for the removal of Cs + or Sr 2+ ions through batch experiments, whereas PAN-chalcogel and KMS-2/CA , were loaded in a column to investigate removal of I – ions and heavy metal ions such as Pb 2+ , respectively. However, the removal of Cs + or Sr 2+ ions using metal sulfide composites in an ion-exchange column has not been reported.…”

Section: Introductionmentioning

confidence: 99%

Efficient Removal of Cs⁺ and Sr²⁺ Ions by Granulous (Me₂NH₂)_4/3(Me₃NH)_2/3Sn₃S₇·1.25H₂O/Polyacrylonitrile Composite

Jin

Zou

et al. 2021

ACS Appl. Mater. Interfaces

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The need to effectively and selectively remove radioactive 137Cs and 90Sr from nuclear waste solutions persists to mitigate their environmental mobility and high radiotoxicity. Because it is difficult to effectively remove them from acidic environments that degrade most sorbents, new sorbent materials are highly desirable. Here, efficient removal of Cs+ and Sr2+ is achieved by the composite of layered tin sulfide (Me2NH2)4/3(Me3NH)2/3Sn3S7·1.25H2O (FJSM-SnS) and polyacrylonitrile (PAN) (FJSM-SnS/PAN). The granulous composite possesses regular particle morphology and good mechanical strength as an engineered form. It shows excellent acid–base and γ-irradiation resistance, high maximum adsorption capacities (q m) of 296.12 and 62.88 mg/g for Cs+ and Sr2+ ions, respectively, and high selectivity even in the presence of excess Na+ ions or using lake water. Impressively, q m Cs of FJSM-SnS/PAN reaches 89.29 mg/g under even acidic conditions (pH = 2.5). The column loaded with FJSM-SnS/PAN granules exhibits high removal rates (R) toward low-concentration Cs+ and Sr2+ ions under both neutral and acidic conditions. Moreover, the composite can be recycled and reused with high R Cs and R Sr. This work highlights the great potential of metal sulfide ion-exchangers in engineered form for the efficient removal of Cs+ or Sr2+ ions, especially under acidic conditions, for radionuclide remediation.

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K2xMnxSn3−xS6 (x = 0.5–0.95) (KMS-1) immobilized on the reduced graphene oxide as KMS-1/r-GO aerogel to effectively remove Cs+ and Sr2+ from aqueous solution

Cited by 43 publications

References 69 publications

Two-dimensional material-based functional aerogels for treating hazards in the environment: synthesis, functional tailoring, applications, and sustainability analysis

Two-dimensional material-based functional aerogels for treating hazards in the environment: synthesis, functional tailoring, applications, and sustainability analysis

Two‐Dimensional Transition Metal Oxides and Chalcogenides for Advanced Photocatalysis: Progress, Challenges, and Opportunities

Efficient Removal of Cs⁺ and Sr²⁺ Ions by Granulous (Me₂NH₂)_4/3(Me₃NH)_2/3Sn₃S₇·1.25H₂O/Polyacrylonitrile Composite

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K2xMnxSn3−xS6 (x = 0.5–0.95) (KMS-1) immobilized on the reduced graphene oxide as KMS-1/r-GO aerogel to effectively remove Cs+ and Sr2+ from aqueous solution

Cited by 43 publications

References 69 publications

Two-dimensional material-based functional aerogels for treating hazards in the environment: synthesis, functional tailoring, applications, and sustainability analysis

Two-dimensional material-based functional aerogels for treating hazards in the environment: synthesis, functional tailoring, applications, and sustainability analysis

Two‐Dimensional Transition Metal Oxides and Chalcogenides for Advanced Photocatalysis: Progress, Challenges, and Opportunities

Efficient Removal of Cs+ and Sr2+ Ions by Granulous (Me2NH2)4/3(Me3NH)2/3Sn3S7·1.25H2O/Polyacrylonitrile Composite

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Product

Resources

About

K2xMnxSn3−xS6 (x = 0.5–0.95) (KMS-1) immobilized on the reduced graphene oxide as KMS-1/r-GO aerogel to effectively remove Cs+ and Sr2+ from aqueous solution

Efficient Removal of Cs⁺ and Sr²⁺ Ions by Granulous (Me₂NH₂)_4/3(Me₃NH)_2/3Sn₃S₇·1.25H₂O/Polyacrylonitrile Composite