Selective and sensitive detection of lead Pb(II) ions: Au/SWNT nanocomposite-embedded MOF-199

Bodkhe, Gajanan A.; Hedau, Bhavna S.; Deshmukh, Megha A.; Patil, Harshada K.; Shirsat, Sumedh M.; Phase, D. M.; Pandey, K. K.; Shirsat, Mahendra D.

doi:10.1007/s10853-020-05285-z

Cited by 51 publications

(32 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As the SWASV curves shown in Figure 4b, the currents intensity enhanced gradually with the Pb 2+ concentration increasing, and the relationship between the current intensity and Pb 2+ concentration was fitted as I (μA)=6.485*10 −5 *C −1.355*10 −4 ( R 2 =0.9988), where Pb 2+ concentration ranged from 0 to 1.0 μM. And then the limit of detection (LOD) was computed as 0.041 μM (S/N=3), significantly below many recent reports and below the standard concentration (0.0015 ppm) and for Pb 2+ in the drinking water set by EPA [1–3,23–27] . The sensitivity of this probe exceeded most recent reported sensors and the LOD was low enough to detect Pb 2+ effectively in many chemical systems.…”

Section: Resultsmentioning

confidence: 82%

“…And then the limit of detection (LOD) was computed as 0.041 μM (S/N = 3), significantly below many recent reports and below the standard concentration (0.0015 ppm) and for Pb 2 + in the drinking water set by EPA. [1][2][3][23][24][25][26][27] The sensitivity of this probe exceeded most recent reported sensors and the LOD was low enough to detect Pb 2 + effectively in many chemical systems. In addition, as shown in the Figure S2, the PXRD pattern of this probe before and after Pb 2 + detection was stayed consistent, suggesting its structure stability.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

3D printing MOFs‐based fiber electrodes: A novel platform as electrochemical sensors for heavy metal ions

Wan

Zhang

2022

Zeitschrift anorg allge chemie

View full text Add to dashboard Cite

Pb2+ probes play an important part in environments and human health. We developed a new free‐standing electrochemical probe by 3D printing UiO‐66‐NH2 with @rGO. This free‐standing fiber electrochemical sensor exhibited good structural stability and Pb2+ sensing performance with enhanced conductivity. This MOFs‐based hybrid probe showed an excellent sensing sensitivity for Pb2+ with a very low detection limit of 0.041 μM, significantly lower than the standard for Pb2+ in drinking water as a result of the porous structure of UiO‐66‐NH2 and the good conductivity of rGO. This study highlighted a simple strategy for MOFs‐based hybrid sensor formation and accelerated the MOFs‐based materials for Pb2+ electrochemical detection in future practical applications.

show abstract

Section: Resultsmentioning

confidence: 82%

Section: Resultsmentioning

confidence: 99%

3D printing MOFs‐based fiber electrodes: A novel platform as electrochemical sensors for heavy metal ions

Wan

Zhang

2022

Zeitschrift anorg allge chemie

View full text Add to dashboard Cite

show abstract

“…The Raman spectra of the as-prepared Co/Mn-MOF and its composite are shown in Figure c, which gives information about their characteristic vibrational frequencies, and the range selected for the analysis is between 100 and 3700 at 523 nm. The Raman shift at 537 cm –1 indicates the Co–O stretching vibration . The vibrational peaks at 870 cm –1 specify the out-of-plane C–H bending (benzene ring) of the BDC linker .…”

Section: Resultsmentioning

confidence: 99%

“…The Raman shift at 537 cm −1 indicates the Co− O stretching vibration. 31 The vibrational peaks at 870 cm −1 specify the out-of-plane C−H bending (benzene ring) of the BDC linker. 32 The spectra showed two discrete bands with peaks at 1444 and 1590 cm −1 , which belong to the D and G bands, respectively.…”

Section: ■ Experimental Sectionmentioning

confidence: 99%

A Facile Synthesis of a Fusiform-Shaped Three-Dimensional Co/Mn@CNDs-MOF Nanocomposite as an Efficient Electrocatalyst for Oxygen Evolution Reaction in Alkaline Medium

et al. 2022

View full text Add to dashboard Cite

A facile synthesis of a bimetallic metal–organic framework (MOF) codoped with carbon nanodots (CNDs) (Co/Mn@CNDs-MOF) via solvothermal treatment is reported. In this study, we prepared a composite material with nanofusiform-like structures as an efficient earth-abundant oxygen evolution reaction (OER) electrocatalyst, its morphology was confirmed by high-resolution transmission electron microscopy, and the calculated average particle size of the Co/Mn@CNDs-MOF was 10.5 nm. Electrochemical methods were performed to examine the catalytic OER of the Co/Mn@CNDs-MOF electrode. The MOF composite revealed high current densities of 50 and 100 mA/cm2 at 280 and 320 mV overpotentials, respectively, with a low Tafel slope of 140 mV dec–1 in a 1 M KOH aqueous electrolyte toward OER. Here, the incorporation of CNDs into a bimetallic MOF increases the surface area, active sites, and moreover the electrocatalytic activity of the composite, revealing almost equal properties when compared to a commercial catalyst, ruthenium oxide (RuO2). This research provides an outstanding avenue to realize multifunctional electrocatalysts.

show abstract

“…In the last few years, the Metal-organic framework (MOF) is one of the focusing materials in the research world due to its tunable properties. MOFs are ultra-high porous, large surface area, highly crystalline, high stability material and importantly it can be tunable by altering central metal or organic ligands [1][2][3]. MOFs are helpful in various applications like gas storage, sensor, chemical separations, biomedical imaging, catalysis and drug delivery as precursors for cooking graphite and metal oxides materials [1,2,4].…”

Section: Introductionmentioning

confidence: 99%

Influence of swift heavy ion irradiation on sensing properties of nickel-(NRs-Ni3HHTP2) metal-organic framework

Ingle

Shirsat²,

Sayyad

et al. 2021

J Mater Sci: Mater Electron

View full text Add to dashboard Cite

Repercussion of Swift Heavy Ion (SHI) irradiation on nickel-based nanorods of Metal-Organic Framework (NRs-Ni3HHTP2-MOF) for enhancement in the properties of ChemFET based gas sensor has been investigated. Nanorods of Ni3HHTP2-MOF were synthesized by chemical method and exposed to C 12+ ions irradiation with fluence 1x10 11 ion/cm 2 and 1x10 12 ion/cm 2 . The structural, spectroscopic morphological and optical characterizations were carried out using x-ray diffraction (XRD), fourier transfer infrared spectroscopy (FTIR), atomic force microscopy (AFM) with scanning electron microscopy (SEM) and UV-visible spectroscopy were studied respectively. Whereas the bandgap was calculated from Tauc's plot. The synthesized nanorods of Ni3HHTP2 MOF were drop-casted on gold coated microelectrodes on silicon/silicon dioxide (Si/SiO2) substrate, where silicon layer serves as a gate and gold microelectrodes on silicon/silicon dioxide (Si/SiO2) substrate as a source and drain. The transmutations in material properties due to SHI irradiations were serviceable for enhancing field-effect transistor (transfer and output) properties.

show abstract

Selective and sensitive detection of lead Pb(II) ions: Au/SWNT nanocomposite-embedded MOF-199

Cited by 51 publications

References 48 publications

3D printing MOFs‐based fiber electrodes: A novel platform as electrochemical sensors for heavy metal ions

3D printing MOFs‐based fiber electrodes: A novel platform as electrochemical sensors for heavy metal ions

A Facile Synthesis of a Fusiform-Shaped Three-Dimensional Co/Mn@CNDs-MOF Nanocomposite as an Efficient Electrocatalyst for Oxygen Evolution Reaction in Alkaline Medium

Influence of swift heavy ion irradiation on sensing properties of nickel-(NRs-Ni3HHTP2) metal-organic framework

Contact Info

Product

Resources

About