Confined in-situ polymerization in nanoscale porphyrinic metal-organic framework for fluorescence imaging-guided synergistic phototherapy

2022 ◽  
Author(s):  
Wen Zhang ◽  
Bo Li ◽  
Wenyao Duan ◽  
Xin Yao ◽  
Xin Lu ◽  
...  
Keyword(s):  
Cancer Treatment ◽  
Fluorescence Imaging ◽  
Hybrid Material ◽  
In Situ Polymerization ◽  
Metal Organic Framework ◽  
Grand Challenge ◽  
Metal Organic ◽  
Organic Framework

Engineering a versatile nanoplatform integrating imaging and therapeutic functions for efficient cancer treatment remains grand challenge. Herein, a type of metal-organic framework (MOF)-based hybrid material for fluorescence imaging-guided synergistic phototherapy...

scholarly journals In Situ Polymerization of Polypyrrole @ Aluminum Fumarate Metal–Organic Framework Hybrid Nanocomposites for the Application of Wastewater Treatment

Polymers ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 1764
Author(s):  
Sarah Zayan ◽  
Ahmed Elshazly ◽  
Marwa Elkady
Keyword(s):  
Surface Area ◽  
In Situ Polymerization ◽  
Metal Organic Framework ◽  
Oxidative Polymerization ◽  
Absorption Spectrometry ◽  
Hybrid Nanocomposites ◽  
Bet Surface Area ◽  
Metal Organic ◽  
Organic Framework

Composite metal–organic frameworks combine large and accessible surface areas with low density and high stability. Herein, we present novel nanocomposites of polypyrrole/aluminum fumarate metal–organic framework (PPy/AlFu MOF), which were synthesized via in situ oxidative polymerization with the aim of MOF functionalization to enhance its thermal stability and increase the specific surface area so that these nanocomposites may be used as potential adsorbents. The synthesized nanocomposites were characterized by various techniques, such as powder X-ray diffraction, scanning electron microscopy, and Fourier-transform infrared spectroscopy (FTIR). The successful functionalization of aluminum fumarate MOF was confirmed by FTIR, and the Brunauer–Emmett–Teller (BET) surface area of the PPy/MOF nanocomposite slightly increased from 795 to 809 m2/g. Thermogravimetric analysis data also show that the weight loss of the composite is up to 30% at temperatures up to 500 ℃. Remarkably, lead (50 ppm) sequestration using the composite was tested, and the atomic absorption spectrometry data demonstrate that PPy/MOF is a super-adsorbent for heavy metal ions. This work shows that the novel polymer–MOF composites are promising materials for the selective removal of lead from wastewater streams.

scholarly journals Efficient Adsorption of Pb(II) from Aqueous Solutions by Metal Organic Framework (Zn-BDC) Coated Magnetic Montmorillonite

Polymers ◽  
2018 ◽  
Vol 10 (12) ◽  
pp. 1383 ◽  
Author(s):  
Jian Shen ◽  
Nan Wang ◽  
Yang Wang ◽  
Di Yu ◽  
Xiao–kun Ouyang
Keyword(s):  
Adsorption Capacity ◽  
Adsorption Mechanism ◽  
In Situ Polymerization ◽  
Metal Organic Framework ◽  
Adsorption Properties ◽  
High Adsorption ◽  
Metal Organic ◽  
Good Potential ◽  
Organic Framework

Composite adsorption materials combine the advantages of various adsorptive materials and compensate for the defects of single adsorbents. Magnetic montmorillonite (MMMT) shows good adsorption properties for Pb(II). In order to further improve the adsorption properties of MMMT, in this work, Zn-BDC, a kind of metal–organic framework (MOF), was modified onto the surface of MMMT by in situ polymerization. The composite material MMMT@Zn-BDC was characterized by Zetasizer, SEM, TEM, FTIR, XRD, VSM, and XPS. The influence of adsorption conditions on the adsorption capacity of MMMT@Zn-BDC for Pb(II) was examined, including the adsorbent dosage, pH of Pb(II) solution, initial concentration of Pb(II), and the temperature and adsorption time. Also, the adsorption mechanism was studied. The results of this study show that MMMT@Zn-BDC adsorbs Pb(II) via chemisorption. In addition, MMMT@Zn-BDC exhibits good potential for adsorbing Pb(II), including its high adsorption capacity (724.64 mg/g) and good recyclability.

Covalent-coordination tandem functionalization of metal-organic framework (UiO-66) as a hybrid probe for luminescence detection of trans, trans-muconic acid as a biomarker of benzene and Fe3+

The Analyst ◽  
2021 ◽  
Author(s):  
Jie Min ◽  
Xiang-Long Qu ◽  
Bing Yan
Keyword(s):  
Hybrid Material ◽  
Metal Organic Framework ◽  
Luminescent Properties ◽  
Muconic Acid ◽  
Luminescence Detection ◽  
Metal Organic ◽  
Organic Framework

By means of post-synthetic treatment on the UiO-66 derivative with -SO3H, a novel luminescent hybrid material named Tb3+@UiO-66-SO3H has been prepared simply and efficiently. Given its wonderful luminescent properties like...

scholarly journals Backbonding contributions to small molecule chemisorption in a metal–organic framework with open copper(i) centers

2021 ◽  
Author(s):  
Gregory M. Su ◽  
Han Wang ◽  
Brandon R. Barnett ◽  
Jeffrey R. Long ◽  
David Prendergast ◽  
...  
Keyword(s):  
Fine Structure ◽  
Small Molecule ◽  
Metal Organic Framework ◽  
X Ray ◽  
Metal Site ◽  
Absorption Fine ◽  
Metal Organic ◽  
X Ray Absorption ◽  
Organic Framework

In situ near edge X-ray absorption fine structure spectroscopy directly probes unoccupied states associated with backbonding interactions between the open metal site in a metal–organic framework and various small molecule guests.

An in situ investigation of the thermal decomposition of metal-organic framework NH2-MIL-125 (Ti)

2021 ◽  
Vol 316 ◽  
pp. 110957
Author(s):  
Mian Zahid Hussain ◽  
Mounib Bahri ◽  
Werner R. Heinz ◽  
Quanli Jia ◽  
Ovidiu Ersen ◽  
...  
Keyword(s):  
Thermal Decomposition ◽  
Metal Organic Framework ◽  
In Situ Investigation ◽  
Metal Organic ◽  
Organic Framework
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