Ag2CO3/UiO-66(Zr) composite with enhanced visible-light promoted photocatalytic activity for dye degradation

Zhang, Sha; Chan, Hardy Sze On; Wu, Jishan

doi:10.1016/j.jhazmat.2015.06.016

Cited by 138 publications

(53 citation statements)

References 81 publications

(90 reference statements)

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“…The microstructures of pure UiO-66 and Dye@UiO-66@SiO 2 -Cit-Eu were characterized by transmission electron microscopy and the results are shown in Figure 1. Pure UiO-66 particles displayed cubic morphologies with particle sizes between 50 and 80 nm (Figure 1a), which was consistent with related reports [10,31]. The resulted Dye@UiO-66@SiO 2 -Cit-Eu had a core-shell structure (Figure 1b), with the particle diameter between 100 and 150 nm, and the silica shell was used to encapsulate the adsorbed fluorescent dye molecules.…”

Section: Resultssupporting

confidence: 89%

“…UiO-66 was synthesized according to the reported method [31]. A total of 53 mg of ZrCl 4 and 34 mg of terephthalic acid were dissolved in 25 mL DMF, and then the mixture was transferred to a Teflon reactor and heated at 120 °C for 24 h. After cooling to room temperature, the mixture was centrifuged to obtain precipitate, followed by washing several times with water, and dried under vacuum at 60 °C for 24 h to obtain a white powder.…”

Section: Methodsmentioning

confidence: 99%

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A Ratiometric Fluorescent Nano-Probe for Rapid and Specific Detection of Tetracycline Residues Based on a Dye-Doped Functionalized Nanoscaled Metal–Organic Framework

Jia

Guo

et al. 2019

Nanomaterials

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Tetracycline (TC) residues are harmful to the environment and human body, so it is necessary to develop a highly sensitive probe for rapid detection of tetracycline residues. In the present paper, a novel dye-doped porous metal–organic framework (UiO-66)-based multi-color fluorescent nano-probe was designed for sensitive ratiometric detection of tetracycline (TC). In this probe, dye-molecules doped UiO-66 was used as a fluorescent internal standard, and the externally grafted lanthanide Eu3+ complex was used as response signals. The fluorescence of the Eu3+ complex was selectively enhanced with increasing concentrations of TC, which was accompanied by a visual blue-to-red color switch. The nano-probe had a linear response between 0.1 and 6 μM with a lowest detection limit of 17.9 nM, which was much lower than the maximum residue limits set by the United States Food and Drug Administration (676 nM) and the European Union (225 nM). The applicability of this method in the analysis of actual samples was evaluated by the determination of TC in honey and milk samples, indicating satisfactory recovery and good reproducibility. In addition, a cost-effective paper-based probe for rapid and visual detection of TC was developed by fixing the nano-probe on filter papers. With the help of a smartphone camera to capture the fluorescence color, and chromaticity analysis software, the calculation and analysis of red (R) and blue (B) values can be realized, which has the potential for real-time visual detection of TC.

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Section: Resultssupporting

confidence: 89%

Section: Methodsmentioning

confidence: 99%

A Ratiometric Fluorescent Nano-Probe for Rapid and Specific Detection of Tetracycline Residues Based on a Dye-Doped Functionalized Nanoscaled Metal–Organic Framework

Jia

Guo

et al. 2019

Nanomaterials

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“…Several silver-based materials have been also used as a component to promote the photocatalytic activity for dyes degradation. Ag 2 CO 3 was combined with UiO-66(Zr) yielding high RhB degradation rates [210]. The results showed the existence of an interaction between the Ag 2 CO 3 and the UiO-66, which benefited the structural stability of the composite and its photocatalytic performance.…”

Section: Heterostructures Combining Different Componentsmentioning

confidence: 97%

A Review on the Synthesis and Characterization of Metal Organic Frameworks for Photocatalytic Water Purification

et al. 2019

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This review analyzes the preparation and characterization of metal organic frameworks (MOFs) and their application as photocatalysts for water purification. The study begins by highlighting the problem of water scarcity and the different solutions for purification, including photocatalysis with semiconductors, such as MOFs. It also describes the different methodologies that can be used for the synthesis of MOFs, paying attention to the purification and activation steps. The characterization of MOFs and the different approaches that can be followed to learn the photocatalytic processes are also detailed. Finally, the work reviews literature focused on the degradation of contaminants from water using MOF-based photocatalysts under light irradiation.

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“…Several silver-based materials have been also used as component to promote the photocatalytic activity for dyes degradation. Ag2CO3 was combined with UiO-66(Zr) yielding high RhB degradation rates [201]. The results showed the existence of an interaction between the Ag2CO3 and the UiO-66, which benefited the structural stability of composite and its photocatalytic performance.…”

Section: Heterostructures Combining Different Componentsmentioning

confidence: 96%

A Review of Photocatalytic Water Purification with Metal Organic Frameworks

Bedia¹,

Muelas-Ramos²,

Peñas-Garzón³

et al. 2018

Preprint

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This review analyzes the preparation and characterization of metal organic frameworks (MOFs) and their application as photocatalysts for water purification. The study begins by highlighting the problem of water scarcity and the different solutions for purification, including photocatalysis with semiconductors such as MOFs. It also describes the different methodologies that can be used for the synthesis of MOFs, paying attention to the purification and activation steps. The characterization of MOFs and the different approaches that can be followed to learn on the photocatalytic processes are also detailed. Finally, the work reviews literature focused on the degradation of contaminants from water using MOF-based photocatalysts under light irradiation.

show abstract

Ag2CO3/UiO-66(Zr) composite with enhanced visible-light promoted photocatalytic activity for dye degradation

Cited by 138 publications

References 81 publications

A Ratiometric Fluorescent Nano-Probe for Rapid and Specific Detection of Tetracycline Residues Based on a Dye-Doped Functionalized Nanoscaled Metal–Organic Framework

A Ratiometric Fluorescent Nano-Probe for Rapid and Specific Detection of Tetracycline Residues Based on a Dye-Doped Functionalized Nanoscaled Metal–Organic Framework

A Review on the Synthesis and Characterization of Metal Organic Frameworks for Photocatalytic Water Purification

A Review of Photocatalytic Water Purification with Metal Organic Frameworks

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