Bifunctional NH<sub>2</sub>-MIL-88(Fe) metal–organic framework nanooctahedra for highly sensitive detection and efficient removal of arsenate in aqueous media

Xie, Dong; Ma, Yue; Gu, Yue; Zhou, Hongjian; Zhang, Haimin; Wang, Guozhong; Zhang, Yunxia; Zhao, Huijun

doi:10.1039/c7ta07934f

Cited by 270 publications

(93 citation statements)

References 60 publications

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“…Metal-organic frameworks (MOFs) have long been a new class of porous nanomaterials because of their adjustable porosity and rich organic elements. [16,17] Bulk oxygen defects are formed by in situ carbon reduction of carbon elements in MOFs, and the formed carbon skeleton can also be used as a conductive network.…”

Section: In Recent Years Rechargeable Aqueous Zinc-ion Batteries (Zimentioning

confidence: 99%

Valence Engineering via In Situ Carbon Reduction on Octahedron Sites Mn₃O₄ for Ultra‐Long Cycle Life Aqueous Zn‐Ion Battery

Tan

Bao

et al. 2020

Advanced Energy Materials

241

120

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In recent years, rechargeable aqueous zinc‐ion batteries (ZIBs) have received much attention. However, the disproportionation effect of Mn2+ seriously affects the capacity retention of ZIBs during cycling. Here, the capacity retention of the Mn3O4 cathode is improved by effective valence engineering. The valence engineering of Mn3O4 is caused by bulk oxygen defects, which are in situ derived from the Mn‐metal organic framework during carbonization. Bulk oxygen defects can change the (MnO6) octahedral structure, which improves structural stability and inhibits the dissolution of Mn2+. The ZIB assembled from bulk oxygen defects Mn3O4@C nanorod arrays (Od‐Mn3O4@C NA/CC) exhibits an ultra‐long cycle life, reaching 84.1 mAh g−1 after 12 000 cycles at 5 A g−1 (up to 95.7% of the initial capacity). Furthermore, the battery has a high specific capacity of 396.2 mAh g−1 at 0.2 A g−1. Ex situ characterization results show that initial Mn3O4 is converted to ramsdellite MnO2 for insertion and extraction of H+ and Zn2+. First‐principles calculations show that the charge density of Mn3+ increases greatly, which improves the conductivity. In addition, the flexible quasi‐solid‐state ZIB is successfully assembled using Od‐Mn3O4 @ C NA/CC. Valence engineering induced by bulk oxygen defects can help develop advanced cathodes for aqueous ZIB.

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Section: In Recent Years Rechargeable Aqueous Zinc-ion Batteries (Zimentioning

confidence: 99%

Valence Engineering via In Situ Carbon Reduction on Octahedron Sites Mn₃O₄ for Ultra‐Long Cycle Life Aqueous Zn‐Ion Battery

Tan

Bao

et al. 2020

Advanced Energy Materials

241

120

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“…The spectrum of MIL-88(Fe) is in accord with previously reported works. [36] The strong bands at 1600 cm À 1 and 1394 cm À 1 are due to the asymmetric and symmetric stretching vibration modes of the OÀ CÀ O in the MIL-88(Fe), [37] which indicates the existence of the dicarboxylate linker in the resultant framework structure. Meanwhile, the obvious peak at 550 cm À 1 is related to the Fe-O vibration, and some strong bands still could be found in the spectrum of PPy NSs that were same with the pure MIL-88(Fe), demonstrating that decomposition of MIL-88(Fe) was incomplete.…”

Section: Resultsmentioning

confidence: 99%

Hollow Polypyrrole Nanospindles for Highly Effective Cancer Therapy

et al. 2018

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Polypyrrole (PPy) hollow nanostructures continue to attract the interest researchers because of their good biocompatibility, high photothermal conversion efficiency, and excellent stability. The preparation of PPy hollow nanostructures by the hard templating method without complicated post-synthetic treatment and additional oxidizing agents remains a challenge. In this work, we report a facile and novel hard templating method to fabricate hollow PPy nanospindles in which MIL-88(Fe) serves as the template. Fe 3 + centers in MIL-88(Fe) could induce the polymerization of pyrrole to construct the shell, and MIL-88(Fe) would be decomposed by solvent water. This method did not require any extra oxidizing agents and post-synthetic treatment. Hollow PPy nanospindles exhibit excellent photothermal and drug loading ability, and the therapy effect of cancer was significant. This method provides a new hard templating approach for the synthesis of polymer hollow nanostructures.[a] Y.

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“…Arsenic as a representative anionic species could be effectively adsorbed by Fe‐MOFs. Xie et al reported the extraordinary adsorption performance for using NH 2 ‐MIL‐88(Fe) to remove arsenate from aqueous media . NH 2 ‐MIL‐88(Fe) crystals can achieve a saturated arsenate sorption capacity of 125 mg g −1 through a chemical adsorption process.…”

Section: Applicationsmentioning

confidence: 99%

“…The rising development of MOFs in chemistry and material science is related to the unique topological structure and the exploitable properties for various applications. MOFs are currently arousing great interest in molecular sensing, battery, catalysis, gas adsorption and separation, biomedicine, drug delivery, template material, and pesticide testing …”

Section: Introductionmentioning

confidence: 99%

State‐of‐the‐Art Advances and Challenges of Iron‐Based Metal Organic Frameworks from Attractive Features, Synthesis to Multifunctional Applications

Xia

Wang

Huang

et al. 2018

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The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/smll.201803088.Metal organic frameworks (MOFs), as an original kind of organic-inorganic porous material, are constructed with metal centers and organic linkers via a coordination complexation reaction. Among uncountable MOF materials, iron-containing metal organic frameworks (Fe-MOFs) have excellent potential in practical applications owing to their many fascinating properties, such as diverse structure types, low toxicity, preferable stability, and tailored functionality. Here, recent research progresses of Fe-MOFs in attractive features, synthesis, and multifunctional applications are described. Fe-MOFs with porosity and tailored functionality are discussed according to the design of building blocks. Four types of synthetic methods including solvothermal, hydrothermal, microwave, and dry gel conversion synthesis are illustrated. Finally, the applications of Fe-MOFs in Li-ion batteries, sensors, gas storage, separation in gas and liquid phases, and catalysis are elucidated, focusing on the mechanism. The aim is to provide prospects for extending Fe-MOFs in more practical applications.Iron-Based Metal Organic Frameworks www.advancedsciencenews.com

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Bifunctional NH₂-MIL-88(Fe) metal–organic framework nanooctahedra for highly sensitive detection and efficient removal of arsenate in aqueous media

Abstract: Bifunctional NH2-MIL-88(Fe) nanooctahedra have been successfully fabricated for highly sensitive and specific recognition as well as efficient removal of arsenate.

Cited by 270 publications

References 60 publications

Valence Engineering via In Situ Carbon Reduction on Octahedron Sites Mn₃O₄ for Ultra‐Long Cycle Life Aqueous Zn‐Ion Battery

Valence Engineering via In Situ Carbon Reduction on Octahedron Sites Mn₃O₄ for Ultra‐Long Cycle Life Aqueous Zn‐Ion Battery

Hollow Polypyrrole Nanospindles for Highly Effective Cancer Therapy

State‐of‐the‐Art Advances and Challenges of Iron‐Based Metal Organic Frameworks from Attractive Features, Synthesis to Multifunctional Applications

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Bifunctional NH2-MIL-88(Fe) metal–organic framework nanooctahedra for highly sensitive detection and efficient removal of arsenate in aqueous media

Abstract: Bifunctional NH2-MIL-88(Fe) nanooctahedra have been successfully fabricated for highly sensitive and specific recognition as well as efficient removal of arsenate.

Cited by 270 publications

References 60 publications

Valence Engineering via In Situ Carbon Reduction on Octahedron Sites Mn3O4 for Ultra‐Long Cycle Life Aqueous Zn‐Ion Battery

Valence Engineering via In Situ Carbon Reduction on Octahedron Sites Mn3O4 for Ultra‐Long Cycle Life Aqueous Zn‐Ion Battery

Hollow Polypyrrole Nanospindles for Highly Effective Cancer Therapy

State‐of‐the‐Art Advances and Challenges of Iron‐Based Metal Organic Frameworks from Attractive Features, Synthesis to Multifunctional Applications

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Product

Resources

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Bifunctional NH₂-MIL-88(Fe) metal–organic framework nanooctahedra for highly sensitive detection and efficient removal of arsenate in aqueous media

Valence Engineering via In Situ Carbon Reduction on Octahedron Sites Mn₃O₄ for Ultra‐Long Cycle Life Aqueous Zn‐Ion Battery

Valence Engineering via In Situ Carbon Reduction on Octahedron Sites Mn₃O₄ for Ultra‐Long Cycle Life Aqueous Zn‐Ion Battery