Zn-MOFs composites loaded with silver nanoparticles are used for fluorescence sensing pesticides, Trp, EDA and photocatalytic degradation of organic dyes

Liu, Lu; Chen, Xiaoli; Cai, Miao; Yan, Rui-Kui; Cui, Hua-Li; Yang, Hua; Wang, Ji‐Jiang

doi:10.1016/j.saa.2022.122228

Cited by 16 publications

(4 citation statements)

References 61 publications

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“…The fluorescence intensity of complex 1 gradually decreased with the increase of Flu concentration (Figure S10b), and it conforms to the Stern− Volmer (I 0 /I = 1 + K SV [M]) equation when the Flu concentration was in the range of 1.0 × 10 −5 to 5.0 × 10 −5 M. The linear relationship was y = 114603.2406x − 0.6647, R 2 = 0.9919, which was similar to MOF sensor detection of Flu reported in the literature. 30,31 The detection limit of Flu was as low as 8.7 × 10 −8 M (Figure 5a). In the anti-interference experiment, the presence of other pesticides did not affect the response of complex 1 to Flu (Figure 5b).…”

Section: Fluorescence Detection Of Complex 1 For Differentmentioning

confidence: 99%

Multifunctional Lanthanide Metal–Organic Frameworks Are Used for Fluorescence Sensing of Bi³⁺, HPO₄^2–, Flu, and PNBA and Application

Sun,

Liu,

Cui

et al. 2024

Inorg. Chem.

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Using a nitrogen-containing tricarboxylic acid ligand (imidazole-1yl) benzene-2,4,6-tricarboxylic acid (H 3 ttc) and lanthanide metal elements (Dy, Eu, Nd, and Gd), four lanthanide metal organic frameworks (Ln-MOFs) with the same structure, namely, {[Dy 2 (Httc) 4), were synthesized under solvothermal conditions. The characterization analysis showed that the four isomorphic Ln-MOFs were trigonal crystals of the R3̅ c space group, with good phase purity and thermal stability. Fluorescence analysis showed that complex 1 can be an excellent fluorescence sensor for Bi 3+ , HPO 4 2− , and fluridine (Flu), while complex 2 can be an excellent fluorescence sensor for p-nitrobenzoic acid (PNBA). And their sensing mechanisms were discussed in detail. The fluorescent test paper and fluorescent seal were prepared by using the excellent luminescence properties of 1 and 2, and the pesticide on the surface of cherry tomato was detected. The applicability of these MOFs as fluorescence sensors was proved. Therefore, Ln-MOFs are expected to have unpredictable application prospects in the field of environmental detection.

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Section: Fluorescence Detection Of Complex 1 For Differentmentioning

confidence: 99%

Multifunctional Lanthanide Metal–Organic Frameworks Are Used for Fluorescence Sensing of Bi³⁺, HPO₄^2–, Flu, and PNBA and Application

Sun,

Liu,

Cui

et al. 2024

Inorg. Chem.

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“…In addition, this charge carrier recombination process can also reduce doping/ impregnation/support in MOFs of metals (Au, Ag, Pt, Pd, etc.) [47,50,77], oxides, or mixtures of metal oxides. (TiO 2 , CoFe 2 O 4 , ZnFe 2 O 4 , Ag 3 VO 4 , etc.…”

Section: Charge Transfer Characteristics Applications Referencementioning

confidence: 99%

Revolutionizing Wastewater Treatment: Harnessing Metal–Organic Frameworks for Exceptional Photocatalytic Degradation of Azo-Type Dyes

Barrera-Andrade,

de la Fuente-Maldonado,

Lopez-Medina

et al. 2023

Colorants

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Due to the high stability of azo-type dyes, conventional treatment processes such as adsorption, flocculation, and activated sludge are not efficient for decolorizing wastewater effluents. An alternative to traditional wastewater treatment is photocatalysis, which has gained significant interest because research has shown it to be a viable and cost-effective process that uses sunlight as an inexhaustible energy source. In heterogeneous photocatalysis, a photocatalyst is required, such as TiO2, ZnO, composite materials, and, more recently, metal–organic frameworks (MOFs). MOFs, also known as “coordination polymers”, exhibit photocatalytic properties and have been proven to be promising materials in the photocatalytic degradation of dyes. This study presents recent advances in using MOFs as photocatalysts to degrade recalcitrant contaminants like azo-type dyes. Recent advancements in developing photocatalysts based on MOFs are focused on two strategies. Firstly, the development of new MOFs composed of complex ligands or a mixed ligand system, and secondly, the synthesis of composite materials based on MOFs and metal oxides, metals, sulfides, nitrides, etc. Both strategies have significantly contributed to the search for new semiconductors to degrade some recalcitrate contaminants in wastewater.

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“…To enhance the photocatalytic properties of MIL-125-NH 2 , the researchers explored new methods by the doping of noble nanoparticles or metal oxides on MIL-125-NH 2 surface (Abdelhameed et al 2020b , 2018b ; Emam et al 2019 ; Kaur et al 2022 ; Luo et al 2020 ; Muelas-Ramos et al 2021 ; Sheng et al 2023 ; Yue et al 2021 ). Silver nanoparticles (Ag NPs) are commonly used for doping the titanium-based MOFs to considerably increase photocatalysis (Cheng et al 2022 ; Liu et al 2023a , 2021 ; Qiu et al 2022 ; Sahoo et al 2022 ). Ag NPs enhance the photocatalytic properties of MIL-125-NH 2 by increasing visible light absorption due to their surface plasmon resonance (SPR).…”

Section: Introductionmentioning

confidence: 99%

Decoration of viscose fibers with silver nanoparticle-based titanium-organic framework for use in environmental applications

Rehan,

Montaser,

El-Shahat

et al. 2024

Environ Sci Pollut Res

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To effectively remove pharmaceuticals, nitroaromatic compounds, and dyes from wastewater, an efficient multifunctional material was created based on silver nanoparticles (Ag) and MIL-125-NH2 (MOF) immobilized on viscose fibers (VF) as a support substrate. Firstly, silver nanoparticles (Ag) were immobilized on the surface of viscose fibers (VF) via in situ synthesis using trisodium citrate (TSC) as a reducing agent to create (VF-Ag). Then, VF and VF-Ag were decorated with the titanium metal–organic framework MIL-125-NH2 (MOF) to create VF-MOF and VF-Ag-MOF. The influence of VF-Ag, VF-MOF, and VF-Ag-MOF on the sonocatalytic or sonophotocatalytic degradation of sulfa drugs was investigated. The results show that VF-Ag-MOF showed excellent sonocatalytic and sonophotocatalytic activity towards the degradation of sulfa drugs compared to VF-Ag and VF-MOF. Furthermore, sonophotodegradation showed a dramatic enhancement in the efficiency of degradation of sulfa drugs compared to sonodegradation. The sonophotodegradation degradation percentage of sulfanilamide, sulfadiazine, and sulfamethazine drugs in the presence of VF-Ag-MOF was 65, 90, and 95 after 45 min of ultrasonic and visible light irradiation. The catalytic activity of VF-Ag, VF-MOF, and VF-Ag-MOF was evaluated through the conversion of p-nitrophenol (4-NP) to p-aminophenol (4-AP). The results demonstrate that VF-Ag-MOF had the highest catalytic activity, followed by VF-Ag and VF-MOF. The conversion percentage of 4-NP to 4-AP was 69%. The catalytic or photocatalytic effects of VF-Ag, VF-MOF, and VF-Ag-MOF on the elimination of methylene blue (MB) dye were investigated. The results demonstrate that VF-Ag-MOF showed high efficiency in removing the MB dye through the reduction (65%) or photodegradation (71%) after 60 min. VF-Ag-MOF composites structure–activity relationships represent that doping within silver NPs enhanced the photocatalytic activity of MIL-125-NH2, which could be explained as follows: (i) Due to the formation of a Schottky barrier at the junction between MIL-125-NH2 and Ag NPs, the photogenerated electrons in the conduction band of MIL-125-NH2 were supposed to be quickly transferred to the valence band of the Ag NPs, and subsequently, the electrons were transferred to the conduction band of Ag NPs. This considerable electron transferring process, which is reported as Z scheme heterojunction, can efficiently suppress the recombination of electron/hole pairs in VF-Ag-MIL-125-NH2 composites. (ii) Sufficient separation between the photogenerated charge carriers (holes and electrons) and avoiding their recombination enhanced the photocatalytic activity of composites.

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Zn-MOFs composites loaded with silver nanoparticles are used for fluorescence sensing pesticides, Trp, EDA and photocatalytic degradation of organic dyes

Cited by 16 publications

References 61 publications

Multifunctional Lanthanide Metal–Organic Frameworks Are Used for Fluorescence Sensing of Bi³⁺, HPO₄^2–, Flu, and PNBA and Application

Multifunctional Lanthanide Metal–Organic Frameworks Are Used for Fluorescence Sensing of Bi³⁺, HPO₄^2–, Flu, and PNBA and Application

Revolutionizing Wastewater Treatment: Harnessing Metal–Organic Frameworks for Exceptional Photocatalytic Degradation of Azo-Type Dyes

Decoration of viscose fibers with silver nanoparticle-based titanium-organic framework for use in environmental applications

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Zn-MOFs composites loaded with silver nanoparticles are used for fluorescence sensing pesticides, Trp, EDA and photocatalytic degradation of organic dyes

Cited by 16 publications

References 61 publications

Multifunctional Lanthanide Metal–Organic Frameworks Are Used for Fluorescence Sensing of Bi3+, HPO42–, Flu, and PNBA and Application

Multifunctional Lanthanide Metal–Organic Frameworks Are Used for Fluorescence Sensing of Bi3+, HPO42–, Flu, and PNBA and Application

Revolutionizing Wastewater Treatment: Harnessing Metal–Organic Frameworks for Exceptional Photocatalytic Degradation of Azo-Type Dyes

Decoration of viscose fibers with silver nanoparticle-based titanium-organic framework for use in environmental applications

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Product

Resources

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Multifunctional Lanthanide Metal–Organic Frameworks Are Used for Fluorescence Sensing of Bi³⁺, HPO₄^2–, Flu, and PNBA and Application

Multifunctional Lanthanide Metal–Organic Frameworks Are Used for Fluorescence Sensing of Bi³⁺, HPO₄^2–, Flu, and PNBA and Application