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

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.

scholarly journals Fluorescence detection of Mn2+, Cr2O72−and nitroexplosives and photocatalytic degradation of methyl violet and rhodamine B based on two stable metal–organic frameworks

RSC Advances ◽  
2017 ◽  
Vol 7 (17) ◽  
pp. 10415-10423 ◽  
Author(s):  
Yu Wu ◽  
Jian Wu ◽  
Zhidong Luo ◽  
Jun Wang ◽  
Yulong Li ◽  
...  
Keyword(s):  
Photocatalytic Degradation ◽  
Fluorescence Detection ◽  
Rhodamine B ◽  
Metal Organic Frameworks ◽  
Methyl Violet ◽  
Metal Organic ◽  
Luminescence Sensors

Two new MOFs show 3D 2-fold interpenetrating 4-connected networks and could be a prospective candidate for developing the luminescence sensors and the photocatalysis due to their highly stabilities.

Assembly of Two Novel Cd3/(Cd3 + Cd5)-Cluster-Based Metal–Organic Frameworks: Structures, Luminescence, and Photocatalytic Degradation of Organic Dyes

2016 ◽  
Vol 16 (4) ◽  
pp. 2309-2316 ◽  
Author(s):  
Ya-Pan Wu ◽  
Xue-Qian Wu ◽  
Jian-Fang Wang ◽  
Jun Zhao ◽  
Wen-Wen Dong ◽  
...  
Keyword(s):  
Photocatalytic Degradation ◽  
Organic Dyes ◽  
Metal Organic Frameworks ◽  
Metal Organic

A series of porous 3D inorganic–organic hybrid framework crystalline materials based on 5-aminoisophthalic acid for photocatalytic degradation of crystal violet

2021 ◽  
Vol 45 (7) ◽  
pp. 3432-3440
Author(s):  
Yu Xin ◽  
Jun Zhou ◽  
Yong Heng Xing ◽  
Feng Ying Bai ◽  
Li Xian Sun
Keyword(s):  
Photocatalytic Degradation ◽  
Crystal Violet ◽  
Metal Organic Frameworks ◽  
Synthetic Method ◽  
Crystalline Materials ◽  
Organic Hybrid ◽  
Hybrid Framework ◽  
Metal Organic ◽  
Degradation Properties

Seven 3D metal-organic frameworks have been designed and synthesized by the hydrothermal synthetic method based on the ligand 5-aminoisophthalic acid. Complexes 1-4 have better photocatalytic degradation properties for dyes CV.

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

scholarly journals Encoding Metal-Cation Arrangements in Metal-Organic Frameworks for Programming the Composition of Electrocatalytically Active Multi-Metal Oxides

2018 ◽  
Author(s):  
Celia Castillo-Blas ◽  
María de las Nieves López-Salas ◽  
María C. Gutiérrez ◽  
Inés Puente-Orench ◽  
Enrique Gutiérrez-Puebla ◽  
...  
Keyword(s):  
Metal Oxides ◽  
Metal Organic Frameworks ◽  
Reduction Reaction ◽  
Methanol Tolerance ◽  
Present Contribution ◽  
Calcination Process ◽  
Secondary Building Units ◽  
Metal Organic ◽  
Synthetic Methodologies ◽  
Metal Ratios

In the present contribution, we report how through the use of metal-organic frameworks (MOFs) composed of addressable combinations of up to four different metal elements it is possible to program the composition of multi-metal oxides, which are not attainable by other synthetic methodologies. Thus, due to the ability to distribute multiple metal cations at specific locations in the MOF secondary building units it is possible to code and transfer selected metal ratios to multi-metal oxides with novel, desired compositions through a simple calcination process. The demonstration of an enhancement in the electrocatalytic activity of new oxides by pre-adjusting the metal ratios is here reported for the oxygen reduction reaction, for which activity values comparable to commercial Pt/C catalysts are reached, while showing long stability and methanol tolerance.

scholarly journals A novel zinc sulfide impregnated carbon composite derived from zeolitic imidazolate framework-8 for sodium-ion hybrid solid-state flexible capacitors

2021 ◽  
Author(s):  
Vishal Shrivastav ◽  
Shashank Sundriyal ◽  
Priyanshu Goel ◽  
Avishek Saha ◽  
Umesh K. Tiwari ◽  
...  
Keyword(s):  
Solid State ◽  
Specific Surface ◽  
Metal Oxides ◽  
Zinc Sulfide ◽  
Metal Organic Frameworks ◽  
Carbon Composite ◽  
High Specific Surface Area ◽  
Sodium Ion ◽  
Zeolitic Imidazolate Framework ◽  
Metal Organic

The pyrolysis of metal–organic frameworks (MOFs) is an easy approach to prepare metal oxides as well as nanoporous carbon with high specific surface area.

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