Hollow terbium metal–organic-framework spheres: preparation and their performance in Fe<sup>3+</sup> detection

Yang, Xiaozhan; Liang, Yicun; Feng, Wenlin; Yang, Chaolong; Wang, Lian; Huang, Guojia; Wang, Daoyuan

doi:10.1039/d1ra08088a

Cited by 7 publications

(5 citation statements)

References 39 publications

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“…DMF is also frequently utilized in the solvothermal synthesis of metal−organic frameworks and several hollow structures reported in the literature for several applications. 27 The difference in polarity and dielectric constants between the solvent and the precipitate is thought to affect the shape. 28 According to colloidal stability models, when the surface potential of the powders is large enough, precipitates that interact with van der Waals attractive and electrostatic repulsive forces become more stable, accompanying aggregation.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…As a result, the development of spherical formations depends significantly on the DMF solvent. DMF is also frequently utilized in the solvothermal synthesis of metal–organic frameworks and several hollow structures reported in the literature for several applications . The difference in polarity and dielectric constants between the solvent and the precipitate is thought to affect the shape .…”

Section: Resultsmentioning

confidence: 99%

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Engineering Rich-Cation Vacancies in CuCo₂O₄ Hollow Spheres with a Large Surface Area Derived from a Template-Free Approach for Ultrahigh Capacity and High-Energy Density Supercapacitors

Reddy

Sravani

Jung

et al. 2023

ACS Appl. Mater. Interfaces

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Intriguing cationic defects with hollow nano-/microstructures are a critical challenge but a potential strategy to discover electrochemical energy conversion and storage devices with improved electrochemical performances. Herein, we successfully produced a highly porous, and large surface area of self-templated CuCo 2 O 4 hollow spheres (CCOHSs) with cationic defects via a solvothermal route. We hypothesized that the inside-out Ostwald ripening mechanism of the template-free strategy was the framework for forming the CCOHSs. Cationic defects (Cu) within the CCOHSs were identified by employing various analytical techniques, including energy-dispersive X-ray spectroscopy analysis of both scanning and transmission electron microscopy, X-ray photon spectroscopy, and inductively coupled plasma− atomic emission spectroscopy. The resulting CCOHSs had significant properties, such as a high specific surface area of 98.32 m 2 g −1 , rich porosity, and battery-type electrode behavior in supercapacitor applications. Notably, the CCOHSs demonstrated an outstanding specific capacity of 1003.7 C g −1 at 1 A g −1 , with excellent structural integrity and cycle stability. Moreover, the fabricated asymmetric CCOHS//activated carbon device exhibited a high energy density of 65.2 Wh kg −1 at a power density of 777.8 W kg −1 .

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Section: ■ Results and Discussionmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Engineering Rich-Cation Vacancies in CuCo₂O₄ Hollow Spheres with a Large Surface Area Derived from a Template-Free Approach for Ultrahigh Capacity and High-Energy Density Supercapacitors

Reddy

Sravani

Jung

et al. 2023

ACS Appl. Mater. Interfaces

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“…2f and g). 56 The shape was a hollow sphere with a size of 5 μm, and Tb-BTC can detect Fe 3+ by the luminescence quenching effect. The method had the advantages of simple operation, mild conditions, high yield, uniform morphology and good stability, and can be used for the determination of trace Fe 3+ .…”

Section: Synthesismentioning

confidence: 99%

Rare earth-based MOFs for photo/electrocatalysis

Meng

Wang

et al. 2023

Mater. Chem. Front.

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“…The performance of different probes to detect AA. References [12,[49][50][51][52][53][54][55][56][57][58][59][60][61][62] are cited in the supplementary materials.…”

Section: Supplementary Materialsmentioning

confidence: 99%

A Ratiometric Fluorescent Probe Based on RhB Functionalized Tb-MOFs for the Continuous Visual Detection of Fe3+ and AA

Jiang

Liu

et al. 2023

Molecules

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In this study, a red-green dual-emitting fluorescent composite (RhB@MOFs) was constructed by introducing the red-emitting organic fluorescent dye rhodamine B (RhB) into metal-organic frameworks (Tb-MOFs). The sample can be used as a ratiometric fluorescent probe, which not only avoids errors caused by instrument and environmental instability but also has multiple applications in detection. The results indicated that the RhB@MOFs exhibited a turned-off response toward Fe3+ and a turned-on response for the continuous detection of ascorbic acid (AA). This ratiometric fluorescent probe possessed high sensitivity and excellent selectivity in the continuous determination of Fe3+ and AA. It is worth mentioning that remarkable fluorescence change could be clearly observed by the naked eye under a UV lamp, which is more convenient in applications. In addition, the mechanisms of Fe3+- and AA-induced fluorescence quench and recovery are discussed in detail. This ratiometric probe displayed outstanding recognition of heavy metal ions and biomolecules, providing potential applications for water quality monitoring and biomolecule determination.

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Hollow terbium metal–organic-framework spheres: preparation and their performance in Fe³⁺ detection

Abstract: (a) Pictures of Tb-MOFs suspension (left) and Fe3+ (right) under 365 nm illumination. (b) Pictures of Fe3+ with (left) and without (right) Tb-MOFs. (c) Pictures of Tb-MOFs powder before (left) and after (right) Fe3+ adsorption.

Cited by 7 publications

References 39 publications

Engineering Rich-Cation Vacancies in CuCo₂O₄ Hollow Spheres with a Large Surface Area Derived from a Template-Free Approach for Ultrahigh Capacity and High-Energy Density Supercapacitors

Engineering Rich-Cation Vacancies in CuCo₂O₄ Hollow Spheres with a Large Surface Area Derived from a Template-Free Approach for Ultrahigh Capacity and High-Energy Density Supercapacitors

Rare earth-based MOFs for photo/electrocatalysis

A Ratiometric Fluorescent Probe Based on RhB Functionalized Tb-MOFs for the Continuous Visual Detection of Fe3+ and AA

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Hollow terbium metal–organic-framework spheres: preparation and their performance in Fe3+ detection

Abstract: (a) Pictures of Tb-MOFs suspension (left) and Fe3+ (right) under 365 nm illumination. (b) Pictures of Fe3+ with (left) and without (right) Tb-MOFs. (c) Pictures of Tb-MOFs powder before (left) and after (right) Fe3+ adsorption.

Cited by 7 publications

References 39 publications

Engineering Rich-Cation Vacancies in CuCo2O4 Hollow Spheres with a Large Surface Area Derived from a Template-Free Approach for Ultrahigh Capacity and High-Energy Density Supercapacitors

Engineering Rich-Cation Vacancies in CuCo2O4 Hollow Spheres with a Large Surface Area Derived from a Template-Free Approach for Ultrahigh Capacity and High-Energy Density Supercapacitors

Rare earth-based MOFs for photo/electrocatalysis

A Ratiometric Fluorescent Probe Based on RhB Functionalized Tb-MOFs for the Continuous Visual Detection of Fe3+ and AA

Contact Info

Product

Resources

About

Hollow terbium metal–organic-framework spheres: preparation and their performance in Fe³⁺ detection

Engineering Rich-Cation Vacancies in CuCo₂O₄ Hollow Spheres with a Large Surface Area Derived from a Template-Free Approach for Ultrahigh Capacity and High-Energy Density Supercapacitors

Engineering Rich-Cation Vacancies in CuCo₂O₄ Hollow Spheres with a Large Surface Area Derived from a Template-Free Approach for Ultrahigh Capacity and High-Energy Density Supercapacitors