Synthesis of zeolitic imidazolate framework-8 on polyester fiber for PM<sub>2.5</sub> removal

Zhang, Yongyong; Jia, Ying; Hou, Lijun

doi:10.1039/c8ra06414h

Cited by 181 publications

(100 citation statements)

References 41 publications

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“…The FT-IR spectrum of the ZIF-8 sample is shown in Figure 2 a. The observed bands are consistent with those reported in the literature for ZIF-8 [ 34 , 35 , 36 , 37 ]. The signals at 1673 and 1565 cm −1 are attributed to the C=C and C=N stretch modes, respectively.…”

Section: Resultssupporting

confidence: 88%

Zinc Based Metal-Organic Frameworks as Ofloxacin Adsorbents in Polluted Waters: ZIF-8 vs. Zn3(BTC)2

Capsoni

Guerra

Puscalau

et al. 2021

IJERPH

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Two different zinc-based metal-organic frameworks (MOFs) were investigated to remove one of the most used fluoroquinolone antibiotic, Ofloxacin (OFL), from polluted water. The most common zeolitic imidazolate framework-8 (ZIF-8) and the green Zn(II) and benzene-1,3,5-tri-carboxylate (Zn3(BTC)2) were prepared through a facile synthetic route and characterized by means of Fourier-Transform Infrared (FT-IR) Spectroscopy, X-ray Powder Diffraction (XRPD), and Scanning Electron Microscopy (SEM) analyses. The two MOFs were compared in terms of both adsorption and kinetic aspects under real conditions (tap water, natural pH). Results showed that OFL was adsorbed in remarkable amounts, 95 ± 10 and 25.3 ± 0.8 mg g−1 on ZIF-8 and Zn3(BTC)2, respectively, following different mechanisms. Specifically, a Langmuir model well described the ZIF-8 profile, while for Zn3(BTC)2, cooperative adsorption occurred. Moreover the kinetic results were quite different, pseudo-second-order and sigmoidal, respectively. The suitability of ZIF-8 and Zn3(BTC)2 as adsorbent phases for water depollution was tested on tap water samples spiked with OFL 10 µg L−1. The obtained removal efficiencies, of 88% for ZIF-8 and 72% for Zn3(BTC)2, make these materials promising candidates for removing fluoroquinolone antibiotics (FQs) from polluted waters, notwithstanding their limited reusability in tap water, as demonstrated by in-depth characterization of the two MOFs after usage.

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Section: Resultssupporting

confidence: 88%

Zinc Based Metal-Organic Frameworks as Ofloxacin Adsorbents in Polluted Waters: ZIF-8 vs. Zn3(BTC)2

Capsoni

Guerra

Puscalau

et al. 2021

IJERPH

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“…Environmental pollution problems seriously endanger human health. In particular, particulate matter (PM) with aerodynamic diameters of less than 2.5 μm in atmosphere are one of the most serious types of air pollution [1,2,3]. PM can carry toxic and harmful substances, such as polycyclic aromatic hydrocarbons and heavy metals, and can easily enter human bronchioles and alveoli and cause respiratory infections, cardiovascular diseases, pneumoconiosis, cancer, and other diseases [4,5,6,7,8].…”

Section: Introductionmentioning

confidence: 99%

One-Step Bark-Like Imitated Polypropylene (PP)/Polycarbonate (PC) Nanofibrous Meltblown Membrane for Efficient Particulate Matter Removal

Cen

Ren

et al. 2019

Polymers

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A bark-like imitated polypr opylene (PP)/polycarbonate (PC) nanofibrous membrane was constructed by one-step meltblown technique for efficient particulate matter (PM) removal. The effects of PC content (0%, 1%, 3%, 5%, and 7%) on membrane thermal stability, microscopic characteristics, filtration performance, hydrophilicity, and water vapor transmission were investigated. The results demonstrated that using facile design of incompatibility and viscosity difference between PC and PP polymers decreases average fiber diameter, creating a bark-like groove appearance and increasing surface potential, making a new PP/PC membrane with high filtration performance. The resultant PP/PC membrane had finer average fiber diameter of 0.63 μm, which was nearly 89.41% lower than PP membranes (5.95 μm), and its quality factor (0.036 Pa−1) was nearly 2.12 times than that of PP membranes (0.017 Pa−1) with the die hole diameter of 0.5 mm. This fabrication technique of a special meltblown filter membrane saves the cost of die retrofitting and post-processing, which provides an innovative method for particulate efficient removal of high efficient filters.

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“…Furthermore, BET method was used to evaluate the porous structure of ZIF‐8 before and after encapsulating by ACV, based on the nitrogen adsorption. As shown in Figure 7, the adsorption‐desorption isotherm of ZIF‐8 is type I [36] . The result of the BJH analysis indicates that the average pore diameter is 1.22 nm, which reveals the micro‐porosity of the composite (Figure 8).…”

Section: Resultsmentioning

confidence: 93%

“…As shown in Figure 7, the adsorption-desorption isotherm of ZIF-8 is type I. [36] The result of the BJH analysis indicates that the average pore diameter is 1.22 nm, which reveals the micro-porosity of the composite (Figure 8).…”

Section: Brunauer-emmett-teller Analysismentioning

confidence: 94%

Synthesis and Application of ZIF‐8 MOF Incorporated in a TiO₂@Chitosan Nanocomposite as a Strong Nanocarrier for the Drug Delivery of Acyclovir

2020

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Recently, metal‐organic frameworks (MOFs) have been effectively established as potential nanocarriers for the drug delivery. In this study, we have examined a novel framework containing TiO2@Chitosan@ZIF‐8 for the delivery of acyclovir (ACV). The structure elucidation and physicochemical characterization of the prepared nanocarrier were investigated by various spectroscopic techniques such as Fourier‐transform infrared spectroscopy (FT‐IR), ultraviolet‐visible spectroscopy (UV‐Vis), energy‐dispersive X‐ray spectroscopy (EDX), X‐ray diffraction (XRD), field emission scanning electron microscopy (FE‐SEM), brunauer‐emmett‐teller (BET), and thermal gravimetric analysis (TGA). The obtained results demonstrated that 90 % of the acyclovir was loaded on the TiO2@Chitosan@ZIF‐8 framework. The drug release study was performed in PBS (phosphate buffer saline, pH:7.4) and AB (acetate buffer, pH:5) solutions, which showed 78 % and 82 % release within 3 days.

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Synthesis of zeolitic imidazolate framework-8 on polyester fiber for PM_2.5 removal

Abstract: Zeolitic imidazolate framework-8 (ZIF-8) was introduced on the surface of fibers of a non-woven fabric made of polyethylene terephthalate (PET).

Cited by 181 publications

References 41 publications

Zinc Based Metal-Organic Frameworks as Ofloxacin Adsorbents in Polluted Waters: ZIF-8 vs. Zn3(BTC)2

Zinc Based Metal-Organic Frameworks as Ofloxacin Adsorbents in Polluted Waters: ZIF-8 vs. Zn3(BTC)2

One-Step Bark-Like Imitated Polypropylene (PP)/Polycarbonate (PC) Nanofibrous Meltblown Membrane for Efficient Particulate Matter Removal

Synthesis and Application of ZIF‐8 MOF Incorporated in a TiO₂@Chitosan Nanocomposite as a Strong Nanocarrier for the Drug Delivery of Acyclovir

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Synthesis of zeolitic imidazolate framework-8 on polyester fiber for PM2.5 removal

Abstract: Zeolitic imidazolate framework-8 (ZIF-8) was introduced on the surface of fibers of a non-woven fabric made of polyethylene terephthalate (PET).

Cited by 181 publications

References 41 publications

Zinc Based Metal-Organic Frameworks as Ofloxacin Adsorbents in Polluted Waters: ZIF-8 vs. Zn3(BTC)2

Zinc Based Metal-Organic Frameworks as Ofloxacin Adsorbents in Polluted Waters: ZIF-8 vs. Zn3(BTC)2

One-Step Bark-Like Imitated Polypropylene (PP)/Polycarbonate (PC) Nanofibrous Meltblown Membrane for Efficient Particulate Matter Removal

Synthesis and Application of ZIF‐8 MOF Incorporated in a TiO2@Chitosan Nanocomposite as a Strong Nanocarrier for the Drug Delivery of Acyclovir

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Synthesis of zeolitic imidazolate framework-8 on polyester fiber for PM_2.5 removal

Synthesis and Application of ZIF‐8 MOF Incorporated in a TiO₂@Chitosan Nanocomposite as a Strong Nanocarrier for the Drug Delivery of Acyclovir