Metal, Metal-Oxides and Metal-Organic Frameworks for Environmental Remediation

2021 ◽  
Keyword(s):  
Metal Oxides ◽  
Environmental Remediation ◽  
Metal Organic Frameworks ◽  
Metal Metal ◽  
Metal Organic

A direct solvent-free conversion approach to prepare mixed-metal metal–organic frameworks from doped metal oxides

2021 ◽  
Vol 57 (29) ◽  
pp. 3587-3590
Author(s):  
Beili Yi ◽  
Haojie Zhao ◽  
Yue Zhang ◽  
Xiaomeng Si ◽  
Guanqun Zhang ◽  
...  
Keyword(s):  
Metal Oxides ◽  
Metal Organic Frameworks ◽  
Solvent Free ◽  
Mixed Metal ◽  
Synthesis Strategy ◽  
Metal Metal ◽  
Metal Organic

We propose a novel solvent-free conversion strategy of Pt–ZnO to Pt-ZIF-8. This synthesis strategy may facilitate the discovery of MMOFs that have not been reported previously.

Metal oxides and metal organic frameworks for the photocatalytic degradation: A review

2020 ◽  
Vol 8 (3) ◽  
pp. 103726 ◽  
Author(s):  
Sanjeev Gautam ◽  
Harshita Agrawal ◽  
Manisha Thakur ◽  
Ali Akbari ◽  
Hemam Sharda ◽  
...  
Keyword(s):  
Metal Oxides ◽  
Photocatalytic Degradation ◽  
Metal Organic Frameworks ◽  
Metal Organic

Chromium Speciation in Zirconium‐Based Metal–Organic Frameworks for Environmental Remediation

2020 ◽  
Vol 26 (61) ◽  
pp. 13861-13872 ◽  
Author(s):  
Paula G. Saiz ◽  
Naroa Iglesias ◽  
Bárbara González Navarrete ◽  
Maibelin Rosales ◽  
Yurieth Marcela Quintero ◽  
...  
Keyword(s):  
Environmental Remediation ◽  
Metal Organic Frameworks ◽  
Chromium Speciation ◽  
Metal Organic

Sequencing of metals in multivariate metal-organic frameworks

Science ◽  
2020 ◽  
Vol 369 (6504) ◽  
pp. 674-680 ◽  
Author(s):  
Zhe Ji ◽  
Tong Li ◽  
Omar M. Yaghi
Keyword(s):  
Metal Oxides ◽  
Atom Probe Tomography ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Molar Fraction ◽  
Atom Probe ◽  
Synthesis Temperature ◽  
Sequence Type ◽  
High Tolerance ◽  
Metal Organic

We mapped the metal sequences within crystals of metal-oxide rods in multivariate metal-organic framework–74 containing mixed combinations of cobalt (Co), cadmium (Cd), lead (Pb), and manganese (Mn). Atom probe tomography of these crystals revealed the presence of heterogeneous spatial sequences of metal ions that we describe, depending on the metal and synthesis temperature used, as random (Co, Cd, 120°C), short duplicates (Co, Cd, 85°C), long duplicates (Co, Pb, 85°C), and insertions (Co, Mn, 85°C). Three crystals were examined for each sequence type, and the molar fraction of Co among all 12 samples was observed to vary from 0.4 to 0.9, without changing the sequence type. Compared with metal oxides, metal-organic frameworks have high tolerance for coexistence of different metal sizes in their rods and therefore assume various metal sequences.

scholarly journals Microbial reduction of metal-organic frameworks enables synergistic chromium removal

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Sarah K. Springthorpe ◽  
Christopher M. Dundas ◽  
Benjamin K. Keitz
Keyword(s):  
Metal Oxides ◽  
Metal Organic Frameworks ◽  
Shewanella Oneidensis ◽  
Microbial Reduction ◽  
Pollutant Removal ◽  
Inorganic Materials ◽  
Surface Areas ◽  
Synthetic Materials ◽  
Metal Organic ◽  
Multiple Cycles

AbstractRedox interactions between electroactive bacteria and inorganic materials underpin many emerging technologies, but commonly used materials (e.g., metal oxides) suffer from limited tunability and can be challenging to characterize. In contrast, metal-organic frameworks exhibit well-defined structures, large surface areas, and extensive chemical tunability, but their utility as microbial substrates has not been examined. Here, we report that metal-organic frameworks can support the growth of the metal-respiring bacterium Shewanella oneidensis, specifically through the reduction of Fe(III). In a practical application, we show that cultures containing S. oneidensis and reduced metal-organic frameworks can remediate lethal concentrations of Cr(VI) over multiple cycles, and that pollutant removal exceeds the performance of either component in isolation or bio-reduced iron oxides. Our results demonstrate that frameworks can serve as growth substrates and suggest that they may offer an alternative to metal oxides in applications seeking to combine the advantages of bacterial metabolism and synthetic materials.

Metal and metal oxidenanoparticle synthesis from metal organic frameworks (MOFs): finding the border of metal and metal oxides

Nanoscale ◽  
2012 ◽  
Vol 4 (2) ◽  
pp. 591-599 ◽  
Author(s):  
Raja Das ◽  
Pradip Pachfule ◽  
Rahul Banerjee ◽  
Pankaj Poddar
Keyword(s):  
Metal Oxides ◽  
Metal Organic Frameworks ◽  
Metal Organic

Mixed-Metal Metal–Organic Frameworks as Catalysts for Liquid-Phase Oxidation of Toluene and Cycloalkanes

2017 ◽  
Vol 42 (10) ◽  
pp. 4383-4390 ◽  
Author(s):  
Abdul Malik P. Peedikakkal ◽  
Abiola Azeez Jimoh ◽  
M. Nasiruzzaman Shaikh ◽  
Bassam El Ali
Keyword(s):  
Liquid Phase ◽  
Metal Organic Frameworks ◽  
Liquid Phase Oxidation ◽  
Mixed Metal ◽  
Metal Metal ◽  
Phase Oxidation ◽  
Metal Organic
Sign in / Sign up

Export Citation Format

Share Document