A microporous Cd-MOF based on a hexavalent silicon-centred connector and luminescence sensing of small molecules

2017 ◽  
Vol 41 (3) ◽  
pp. 1137-1141 ◽  
Author(s):  
Hong-Rui Tian ◽  
Chao-Ying Gao ◽  
Yang Yang ◽  
Jing Ai ◽  
Chao Liu ◽  
...  
Keyword(s):  
Small Molecules ◽  
Crystal Morphology ◽  
Metal Organic Framework ◽  
Turn On ◽  
Metal Organic ◽  
Organic Framework

A microporous metal–organic framework, built from a silicon-centered linker that is among the never documented examples, exhibits a hollow tubular crystal morphology and displays turn-on and turn-off luminescence responses for n-butanol and acetone, respectively.

Luminescent Metal-Organic Framework Sensor: Exceptional Cd2+Turn-On Detection and First In Situ Visualization of Cd2+Ion Diffusion into a Crystal

2017 ◽  
Vol 23 (20) ◽  
pp. 4803-4809 ◽  
Author(s):  
Kwang Soo Lim ◽  
So Yeon Jeong ◽  
Dong Won Kang ◽  
Jeong Hwa Song ◽  
Hyuna Jo ◽  
...  
Keyword(s):  
Metal Organic Framework ◽  
Ion Diffusion ◽  
Turn On ◽  
In Situ Visualization ◽  
Metal Organic ◽  
Organic Framework

scholarly journals Buffered Coordination Modulation as a Means of Controlling Crystal Morphology and Molecular Diffusion in an Anisotropic Metal–Organic Framework

2021 ◽  
Vol 143 (13) ◽  
pp. 5044-5052
Author(s):  
Kristen A. Colwell ◽  
Megan N. Jackson ◽  
Rodolfo M. Torres-Gavosto ◽  
Sudi Jawahery ◽  
Bess Vlaisavljevich ◽  
...  
Keyword(s):  
Crystal Morphology ◽  
Molecular Diffusion ◽  
Metal Organic Framework ◽  
Metal Organic ◽  
Anisotropic Metal ◽  
Organic Framework

scholarly journals Polymer-Assisted Modification of Metal-Organic Framework MIL-96 (Al): Influence on Particle Size, Crystal Morphology and Perfluorooctanoic Acid (PFOA) Removal

2020 ◽  
Author(s):  
Luqman Hakim Mohd Azmi ◽  
Daryl R. Williams ◽  
Bradley P. Ladewig
Keyword(s):  
Particle Size ◽  
Crystal Morphology ◽  
Low Cost ◽  
Metal Organic Framework ◽  
Synthesis Method ◽  
Perfluorooctanoic Acid ◽  
Water Soluble ◽  
Water Soluble Polymer ◽  
Metal Organic ◽  
Organic Framework

<div><b>Abstract</b></div><div>A new synthesis method was developed to prepare an aluminum-based metal organic framework (MIL-96) with a larger particle size and different crystal habits. A low cost and water-soluble polymer, hydrolyzed polyacrylamide (HPAM), was added in varying quantities into the synthesis reaction to achieve >200% particle size enlargement with controlled crystal morphology. The modified adsorbent, MIL-96-RHPAM2, was systematically characterized by SEM, XRD, FTIR, BET and TGA-MS. Using activated carbon (AC) as a reference adsorbent, the effectiveness of MIL-96-RHPAM2 for perfluorooctanoic acid (PFOA) removal from water was examined. The study confirms stable morphology of hydrated MIL-96-RHPAM2 particles as well as a superior PFOA adsorption capacity (340 mg/g) despite its lower surface area, relative to standard MIL-96. MIL-96-RHPAM2 suffers from slow adsorption kinetics as the modification significantly blocks pore access. The strong adsorption of PFOA by MIL-96-RHPAM2 was associated with the formation of electrostatic bonds between the anionic carboxylate of PFOA and the amine functionality present in the HPAM backbone. Thus, the strongly held PFOA molecules in the pores of MIL-96-RHPAM2 were not easily desorbed even after eluted with a high ionic strength solvent (500 mM NaCl). Nevertheless, this simple HPAM addition strategy can still chart promising pathways to impart judicious control over adsorbent particle size and crystal shapes while the introduction of amine functionality onto the surface chemistry is simultaneously useful for enhanced PFOA removal from contaminated aqueous systems.<br></div>

scholarly journals Polymer-Assisted Modification of Metal-Organic Framework MIL-96 (Al): Influence on Particle Size, Crystal Morphology and Perfluorooctanoic Acid (PFOA) Removal

2020 ◽  
Author(s):  
Luqman Hakim Mohd Azmi ◽  
Daryl R. Williams ◽  
Bradley P. Ladewig
Keyword(s):  
Particle Size ◽  
Crystal Morphology ◽  
Low Cost ◽  
Metal Organic Framework ◽  
Synthesis Method ◽  
Perfluorooctanoic Acid ◽  
Water Soluble ◽  
Water Soluble Polymer ◽  
Metal Organic ◽  
Organic Framework

<div><b>Abstract</b></div><div>A new synthesis method was developed to prepare an aluminum-based metal organic framework (MIL-96) with a larger particle size and different crystal habits. A low cost and water-soluble polymer, hydrolyzed polyacrylamide (HPAM), was added in varying quantities into the synthesis reaction to achieve >200% particle size enlargement with controlled crystal morphology. The modified adsorbent, MIL-96-RHPAM2, was systematically characterized by SEM, XRD, FTIR, BET and TGA-MS. Using activated carbon (AC) as a reference adsorbent, the effectiveness of MIL-96-RHPAM2 for perfluorooctanoic acid (PFOA) removal from water was examined. The study confirms stable morphology of hydrated MIL-96-RHPAM2 particles as well as a superior PFOA adsorption capacity (340 mg/g) despite its lower surface area, relative to standard MIL-96. MIL-96-RHPAM2 suffers from slow adsorption kinetics as the modification significantly blocks pore access. The strong adsorption of PFOA by MIL-96-RHPAM2 was associated with the formation of electrostatic bonds between the anionic carboxylate of PFOA and the amine functionality present in the HPAM backbone. Thus, the strongly held PFOA molecules in the pores of MIL-96-RHPAM2 were not easily desorbed even after eluted with a high ionic strength solvent (500 mM NaCl). Nevertheless, this simple HPAM addition strategy can still chart promising pathways to impart judicious control over adsorbent particle size and crystal shapes while the introduction of amine functionality onto the surface chemistry is simultaneously useful for enhanced PFOA removal from contaminated aqueous systems.<br></div>

Photo-triggered release of 5-fluorouracil from a MOF drug delivery vehicle

2018 ◽  
Vol 54 (55) ◽  
pp. 7617-7620 ◽  
Author(s):  
Kristina Roth Stefaniak ◽  
Charity C. Epley ◽  
Joshua J. Novak ◽  
Margaret L. McAndrew ◽  
Hannah D. Cornell ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Controlled Release ◽  
Small Molecules ◽  
Metal Organic Framework ◽  
Delivery Vehicle ◽  
Triggered Release ◽  
Drug Delivery Vehicle ◽  
Metal Organic ◽  
Organic Framework

A nano metal–organic-framework (nanoMOF) was employed as a first-of-its kind drug delivery vehicle (DDV) for the photo-controlled release of therapeutics with simultaneous breakdown of the carrier into small molecules.

Sign in / Sign up

Export Citation Format

Share Document