scholarly journals A silver nanoparticle-anchored UiO-66(Zr) metal–organic framework (MOF)-based capacitive H2S gas sensor

CrystEngComm ◽  
2019 ◽  
Vol 21 (47) ◽  
pp. 7303-7312 ◽  
Author(s):  
Sandeep G. Surya ◽  
Sreenu Bhanoth ◽  
Sanjit M. Majhi ◽  
Yogeshwar D. More ◽  
V. Mani Teja ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Gas Sensor ◽  
Silver Nanoparticle ◽  
Metal Organic Framework ◽  
Metal Oxide Nanoparticles ◽  
Metal Organic Frameworks ◽  
Oxide Nanoparticles ◽  
Enhanced Sensitivity ◽  
H2s Gas Sensor ◽  
Metal Organic

Metal–organic frameworks anchored with metal oxide nanoparticles for the detection of H2S gas with enhanced sensitivity.

Encapsulation of metal oxide nanoparticles inside metal-organic frameworks via surfactant-assisted nanoconfined space

2020 ◽  
Vol 31 (25) ◽  
pp. 255604
Author(s):  
Sha Wang ◽  
Yantao Yu ◽  
Jinqiu Yu ◽  
Tieqiang Wang ◽  
Peng Wang ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Metal Oxide Nanoparticles ◽  
Metal Organic Frameworks ◽  
Oxide Nanoparticles ◽  
Metal Organic ◽  
Surfactant Assisted

scholarly journals Carbonized metal–organic frameworks with trapped cobalt nanoparticles as biocompatible and efficient azo-dye adsorbent

2019 ◽  
Vol 31 (1) ◽  
Author(s):  
Martyna Trukawka ◽  
Krzysztof Cendrowski ◽  
Magdalena Peruzynska ◽  
Adrian Augustyniak ◽  
Pawel Nawrotek ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Metal Oxide Nanoparticles ◽  
Metal Organic Frameworks ◽  
Dye Adsorption ◽  
Cobalt Nanoparticles ◽  
Oxide Nanoparticles ◽  
Standard Entropy ◽  
Anionic Dye ◽  
Metal Metal ◽  
Metal Organic

Abstract Background Metal–organic frameworks (MOFs) derived carbonaceous materials functionalized with metal/metal-oxide nanoparticles are obtained by its carbonization. The carbonization of MOFs occurs simultaneously with the metal and metal-oxide particle formation. The carbon-based flake-like nanostructures with trapped metal/metal-oxide nanoparticles have been formed. Due to its non-toxicity and environmental friendliness, the capacity for pollution adsorption using model anionic dye has been revealed. Results The structure of the hybrid is formed as the effect of carbonization of metal–organic frameworks with cobalt as a metal counterpart (CoOF). The cobalt nanoparticles are placed between the carbon layers what limits the dissolution of cobalt nanoparticles and protects the environment from its toxicity. It is preliminary validated by means of two reference micro-organisms (Gram-negative Pseudomonas aeruginosa and Gram-positive Staphylococcus aureus) and in in vitro analysis with human cell line (A375). The efficiency of the adsorption properties of the material was tested with Acid Red 18 as a model anionic dye. The mechanism of dye adsorption was analyzed in details. In addition, various thermodynamic parameters, such as standard enthalpy, standard entropy, and standard Gibbs free energy, were tested. In addition, it was proved that the main substrate of CoOF (terephthalic acid) can be used from PET bottles, while the organic solvent used in its synthesis (N,N-dimethylformamide) was distilled and reused. The obtained carbonized CoOF revealed the same morphology and properties as pristine material. Conclusions The kinetic data of dye adsorption fit well with the pseudo-second-order model and Langmuir type. Acid Red 18 adsorption is more favourable at lower temperatures and lower pH. The location of the cobalt nanoparticles between the carbon flakes effectively limits their toxicity compared to the free metal nanoparticles. The CoOF can be obtained from recycled substrates, which revealed the same morphology as pristine material. Therefore, it is believed that this work highlights the practical application of carbonized CoOF as an adsorbate and provides the evidence that such nanocomposite can be applied without environmental risks.

Facile synthesis of metal/metal oxide nanoparticles inside a nanoporous carbon matrix (M/MO@C) through the morphology-preserved transformation of metal–organic framework

2015 ◽  
Vol 51 (33) ◽  
pp. 7238-7241 ◽  
Author(s):  
Woojeong Bak ◽  
Hee Soo Kim ◽  
Hyungphil Chun ◽  
Won Cheol Yoo
Keyword(s):  
Metal Oxide ◽  
Metal Organic Framework ◽  
Metal Oxide Nanoparticles ◽  
Metal Organic Frameworks ◽  
Carbon Matrix ◽  
Carbon Composites ◽  
Particle Sizes ◽  
Facile Synthesis ◽  
Metal Metal ◽  
Metal Organic

Metal–organic frameworks (MOFs) undergo a simple, two-step process to form morphology-preserved metal/metal oxide@carbon composites with tunable porosity and particle sizes.

scholarly journals Gas Sensor with Reduced Humidity Response Based on Metal Oxide Nanoparticles Synthesized by Spark Discharge

2018 ◽  
Vol 34 (2) ◽  
pp. 648-654 ◽  
Author(s):  
Alexey Vasiliev ◽  
Andrey Varfolomeev ◽  
Ivan Volkov ◽  
Pavel Arsenov ◽  
Alexey Efimov ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Gas Sensor ◽  
Metal Oxide Nanoparticles ◽  
Spark Discharge ◽  
Oxide Nanoparticles ◽  
Humidity Response

Ultrafine ternary metal oxide particles with carbon nanotubes: a metal–organic-framework-based approach and superior lithium-storage performance

2019 ◽  
Vol 48 (13) ◽  
pp. 4413-4419 ◽  
Author(s):  
Xuxu Tang ◽  
Ming Liang ◽  
Yanfeng Zhang ◽  
Weiwei Sun ◽  
Yong Wang
Keyword(s):  
Metal Oxide ◽  
Metal Organic Framework ◽  
Metal Oxide Nanoparticles ◽  
Lithium Ion ◽  
Lithium Storage ◽  
Storage Performance ◽  
Ternary Metal ◽  
Metal Organic ◽  
Oxide Particles ◽  
Organic Framework

A metal–organic-framework template approach was used to fabricate ultrafine ternary metal oxide nanoparticles embedded in CNTs, which exhibit larger-than-theoretical reversible capacities for lithium-ion batteries.

Hierarchical macro- and mesoporous assembly of metal oxide nanoparticles derived from metal-organic complex

2015 ◽  
Vol 217 ◽  
pp. 6-11 ◽  
Author(s):  
Chengcheng Liu ◽  
Jianling Zhang ◽  
Li Peng ◽  
Xinchen Kang ◽  
Buxing Han ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Metal Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Organic Complex ◽  
Metal Organic Complex ◽  
Metal Organic

Low-temperature and highly sensitivity H2S gas sensor based on ZnO/CuO composite derived from bimetal metal-organic frameworks

2020 ◽  
Vol 46 (10) ◽  
pp. 15858-15866 ◽  
Author(s):  
Xu Wang ◽  
Sihan Li ◽  
Lili Xie ◽  
Xia Li ◽  
Donghai Lin ◽  
...  
Keyword(s):  
Low Temperature ◽  
Gas Sensor ◽  
Metal Organic Frameworks ◽  
H2s Gas Sensor ◽  
Metal Organic

Enhanced selectivity of target gas molecules through a minimal array of gas sensors based on nanoparticle-decorated SWCNTs

The Analyst ◽  
2019 ◽  
Vol 144 (13) ◽  
pp. 4100-4110 ◽  
Author(s):  
Sonia Freddi ◽  
Giovanni Drera ◽  
Stefania Pagliara ◽  
Andrea Goldoni ◽  
Luigi Sangaletti
Keyword(s):  
Metal Oxide ◽  
Gas Sensor ◽  
Gas Sensors ◽  
Metal Oxide Nanoparticles ◽  
Sensor Arrays ◽  
Oxide Nanoparticles ◽  
Gas Molecules ◽  
Enhanced Selectivity ◽  
Gas Sensor Arrays

Layers of CNTs decorated with metal and metal–oxide nanoparticles can be used to develop highly selective gas sensor arrays.

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