Synthesis of various dimensional metal organic frameworks (MOFs) and their hybrid composites for emerging applications – A review

Annamalai, J; Murugan, Preethika; Ganapathy, Dhanraj; Nallaswamy, Deepak; Atchudan, Raji; Arya, Sandeep; Khosla, Ajit; Seetharaman, Barathi; Sundramoorthy, Ashok K.

doi:10.1016/j.chemosphere.2022.134184

Cited by 117 publications

(60 citation statements)

References 212 publications

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“…[3][4][5] Numerous types of nanostructured nanomaterials are used to detect the various type of gases such as metal oxide, conducting polymers, 4,6,7 carbon nanotubes, graphene oxide, and metal-organic framework, etc. [8][9][10] Liquefied petroleum gas (LPG) is a highly explosive gas that is widely used in domestic and industries and it is very harmful to the human being as well as the environment. 11 One of the combustible and dangerous gases frequently utilized in homes and businesses is LPG.…”

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confidence: 99%

MnO₂-SnO₂ Based Liquefied Petroleum Gas Sensing Device for Lowest Explosion Limit Gas Concentration

2022

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An MnO2-SnO2 nanocomposite-based sensing device with below lower exposure limit (0.5-2.0 vol%) for liquefied petroleum gas (LPG) is reported. The synthesized material is highly crystalline with an average crystallite size of 16.786 nm, confirmed by the X-ray diffraction (XRD). A Williamson-Hall plot shows that induced strain of 2.627×10-4, present in the nanocomposite, lies between the induced strains of both of its constituents. The XRD pattern of nanocomposite contains cubic phase of MnO2 and the tetragonal phase of SnO2. Tauc plot shows the optical energy band gap of MnO2, SnO2, and MnO2-SnO2 of 3.407, 3.037, and 3.202 eV, respectively. The surface morphological investigation shows the brush-like structure which enhances sensor performance by providing activation sites. The energy dispersive X-ray spectrum found that materials are highly pure because other peaks are not observed. The functional group analysis by Fourier transform infrared spectroscopy found that Sn-O and Mn-O both vibration bands existed. The highest sensor response was found to be 2.42 for 2.0 vol% whereas for a lower concentration of 0.5 vol% the sensor response was observed to 1.44. The fast response and recovery of this sensing device were found to17.30 and 23.25 s, respectively, for 0.5 vol% of LPG.

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confidence: 99%

MnO₂-SnO₂ Based Liquefied Petroleum Gas Sensing Device for Lowest Explosion Limit Gas Concentration

2022

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“…C-ZIF-67-1/4 ( Figure 2C ) and C-ZIF-67-1/5 ( Figure 2D ) also exhibited rough irregular spherical structures with small raised particles on their surfaces, but most C-ZIF-67-1/4 and C-ZIF-67-1/5 particles had a size of 100 nm. The particle size distributions of C-ZIF-67-1/4 and C-ZIF-67-1/5 were significantly narrower than that of C-ZIF-67-1/3, probably because the degree of concentration continued to increase ( Annamalai et al, 2022 ). The small sugar molecules (e.g., ribose, xylose, and arabinose) in the pre-hydrolysis solution tended to homogenize, and the size of carbon spheres became more uniform ( Gao et al, 2021 ).…”

Section: Resultsmentioning

confidence: 96%

Effects of ultrafiltration on Co-Metal Organic Framework/pre-hydrolysis solution carbon materials for supercapacitor energy storage

Sha²,

Yang³

et al. 2022

Front. Chem.

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Here, a Co-Metal Organic Framework/pre-hydrolysis (Co-MOF/pre-hydrolysis) solution carbon material is prepared by a mild and environmentally-friendly hydrothermal carbonization technique using a pulping pre-hydrolysis solution as the raw material and Co-MOF as the metal dopant. The stable hollow structure provide sufficient space for particle shrinkage and expansion, while the low density and large specific surface area of the long, hairy tentacle structure provide a greater contact area for ions, which shorten the transmission path of electrons and charges. The materials exhibit excellent specific capacitance (400 F/g, 0.5 A/g) and stability (90%, 10,000 cycles). The Change of different concentration ratios in the structures significantly affect the electrochemical performance. The specific surface area of the carbon materials prepared by ultra-filtration increased, but the specific surface area decrease as ultrafiltration concentration increase. The specific capacitance decrease from 336 F/g for C-ZIF-67-1/3 volume ultrafiltration to 258 F/g for C-ZIF-67-1/5 ultrafiltration. The results indicate that energy storage by the carbon materials relied on a synergistic effect between their microporous and mesoporous structures. The micropores provide storage space for the transmission of ions, while the mesopores provide ion transport channels. The separation of large and small molecules after ultrafiltration concentration limit the ion transmission and energy storage of the pores.

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“…The rational design of MOFs is very challenging and relies on the rational selection of linkers and metal ions. 32,33 Carboxylate donor ligands are very important because they have strong coordination abilities in different ways that allow them to meet the geometric needs of metal centers, which leads to higher dimensions and interesting topologies. 34−36 Pb(II), as a heavy metal ion in the p-block, has the characteristics of a large radius and multiple coordination numbers, which provides a unique opportunity for constructing a new type of MOF with variable topology and interesting properties.…”

Section: Introductionmentioning

confidence: 99%

“…The rational design of MOFs is very challenging and relies on the rational selection of linkers and metal ions. , Carboxylate donor ligands are very important because they have strong coordination abilities in different ways that allow them to meet the geometric needs of metal centers, which leads to higher dimensions and interesting topologies. − Pb(II), as a heavy metal ion in the p-block, has the characteristics of a large radius and multiple coordination numbers, which provides a unique opportunity for constructing a new type of MOF with variable topology and interesting properties. − However, to date, most of the studies on MOFs have mainly focused on lanthanide elements and d-block transition metals, while less attention has been given to MOFs based on p-block main group metals. , Therefore, the development of innovative Pb-based MOFs and their potential applications is very important.…”

Section: Introductionmentioning

confidence: 99%

Dual-Color 2D Lead–Organic Framework with Two-Fold Interlocking Structures for the Detection of Nitrofuran Antibiotics and 2,6-Dichloro-4-nitroaniline

Liu

Zhang

Karmaker

et al. 2022

ACS Appl. Mater. Interfaces

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The misuse of organic pollutants such as nitrofuran antibiotics (NFAs) and 2,6-dichloro-4-nitroaniline (DCN) has become a hot topic of global concern, and developing rapid, efficient, and accurate techniques for detecting NFAs and pesticides in water is a major challenge. Here, we designed a novel leadbased anion 2D metal−organic framework (MOF){[(CH 3 ) 2 NH 2 ] 2 [Pb(TCBPE)-(H 2 O) 2 ]} n (F3) with interlocking structures, in which TCBPE stands for 1,1,2,2tetra(4-carboxylbiphenyl)ethylene. Powder X-ray diffraction and thermogravimetric analysis revealed that F3 has excellent chemical and solvent stability. It is worth noting that F3 has a grinding discoloration effect. The solvent-protected grinding approach achieved F3B with a high quantum yield (QY = 73.77%) and blue fluorescence, while the direct grinding method produced F3Y with a high quantum yield (QY = 37.27%) and yellow−green fluorescence. Importantly, F3B can detect NFAs in water rapidly and sensitively while remaining unaffected by other antibiotics. F3Y can identify DCN in water quickly and selectively while remaining unchanged by other pesticides. F3B demonstrated high selectivity and rapid response to NFAs at a limit of detection (LOD) as low as 0.26 μM, while F3Y indicated high selectivity and responded quickly to DCN in water at an LOD as low as 0.14 μM. The method was successfully applied to detect NFAs in actual water samples of the fish tanks and ponds as well as the pesticide DCN in soil samples. The recovery rates were 97.0−105.15% and 102.2− 106.48%, and the relative standard deviations were 0.63−1.45% and 0.29−1.69%, respectively. In addition, F3B and F3Y can be made into fluorescent test papers for the visual detection of NFAs and DCN, respectively. Combined with experiments and density functional theory calculations, the mechanism of fluorescence quenching of MOFs by target analytes was also revealed.

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Synthesis of various dimensional metal organic frameworks (MOFs) and their hybrid composites for emerging applications – A review

Cited by 117 publications

References 212 publications

MnO₂-SnO₂ Based Liquefied Petroleum Gas Sensing Device for Lowest Explosion Limit Gas Concentration

MnO₂-SnO₂ Based Liquefied Petroleum Gas Sensing Device for Lowest Explosion Limit Gas Concentration

Effects of ultrafiltration on Co-Metal Organic Framework/pre-hydrolysis solution carbon materials for supercapacitor energy storage

Dual-Color 2D Lead–Organic Framework with Two-Fold Interlocking Structures for the Detection of Nitrofuran Antibiotics and 2,6-Dichloro-4-nitroaniline

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Synthesis of various dimensional metal organic frameworks (MOFs) and their hybrid composites for emerging applications – A review

Cited by 117 publications

References 212 publications

MnO2-SnO2 Based Liquefied Petroleum Gas Sensing Device for Lowest Explosion Limit Gas Concentration

MnO2-SnO2 Based Liquefied Petroleum Gas Sensing Device for Lowest Explosion Limit Gas Concentration

Effects of ultrafiltration on Co-Metal Organic Framework/pre-hydrolysis solution carbon materials for supercapacitor energy storage

Dual-Color 2D Lead–Organic Framework with Two-Fold Interlocking Structures for the Detection of Nitrofuran Antibiotics and 2,6-Dichloro-4-nitroaniline

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MnO₂-SnO₂ Based Liquefied Petroleum Gas Sensing Device for Lowest Explosion Limit Gas Concentration

MnO₂-SnO₂ Based Liquefied Petroleum Gas Sensing Device for Lowest Explosion Limit Gas Concentration