A novel electrochemical sensor based on calixarene functionalized reduced graphene oxide: Application to simultaneous determination of Fe(III), Cd(II) and Pb(II) ions

Göde, Ceren; Yola, Mehmet Lütfi; Yılmaz, Alime; Atar, Necip; Wang, Shaobin

doi:10.1016/j.jcis.2017.08.086

Cited by 119 publications

(40 citation statements)

References 40 publications

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“…This measure was repeated three times, and the same results were obtained. It implies that the excellent quenching ability of 2D MOF nanosheet for Fe 3+ mainly comes from its 2D structure, which is consistent with the previously reported fluorescence sensors based on the other 2D nanosheet, such as graphene oxide [48,49] and TMDs. [50] As shown in Figure S25 detection limit comparison of some fluorescent sensor materials for Fe 3+ sensing is listed in Table 2, and ZSB-1 nanosheets exhibit best performance.…”

Section: Doi: 101002/smll201703873supporting

confidence: 88%

“…This measure was repeated three times, and the same results were obtained. It implies that the excellent quenching ability of 2D MOF nanosheet for Fe 3+ mainly comes from its 2D structure, which is consistent with the previously reported fluorescence sensors based on the other 2D nanosheet, such as graphene oxide and TMDs . As shown in Figure S25 (Supporting Information), the ZSB‐1 nanosheet‐based sensor shows a linear range between 0 and 0.20 × 10 −3 m with the detection limit of 0.054 × 10 −6 m , while the detection limit of bulk ZSB‐1 is 0.110 × 10 −6 m (Figure S27, Supporting Information).…”

Section: Fluorescence Lifetime Decays and Photoluminescence Quantum Ysupporting

confidence: 86%

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A Highly Solvent‐Stable Metal–Organic Framework Nanosheet: Morphology Control, Exfoliation, and Luminescent Property

Han

Dong

Chen

et al. 2018

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Compared to bulk metal-organic framework (MOF), 2D MOF nanosheets have gained intensive research attention due to their ultrathin thickness and large surface area with highly accessible active sites. However, structural deterioration and morphological damage have impeded producing high-quality MOF nanosheets during exfoliation. Here, first a new layered bulk MOF ZSB-1 is synthesized and several solvents such as isopropanol, methanol, n-hexyl alcohol, and N,N-dimethylformamide are surveyed to examine their performance for the exfoliation of layered ZSB-1. As a result, a highly solvent-stable metal-organic framework rectangular nanosheet retaining undamaged morphology is obtained by the soft-physical method in n-hexyl alcohol. Theoretical simulations reveal that the strong interaction energy between n-hexyl alcohol and MOF layers is responsible for the best exfoliation performance of making the bulk MOF into nanosheets. In addition, ZSB-1 shows a tunable fluorescence peak position, fluorescent lifetime, and quantum yield by simply changing the solvent and morphology. Besides, the ZSB-1 was selected as a fluorescence sensor to detect metal ions, and ZSB-1 nanosheet exhibits excellent sensing ability for Fe . It is worth noting that the ZSB-1 nanosheet has better detection limit performance of 0.054 × 10 m than that of its bulk counterpart.

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Section: Doi: 101002/smll201703873supporting

confidence: 88%

“…This measure was repeated three times, and the same results were obtained. It implies that the excellent quenching ability of 2D MOF nanosheet for Fe 3+ mainly comes from its 2D structure, which is consistent with the previously reported fluorescence sensors based on the other 2D nanosheet, such as graphene oxide and TMDs . As shown in Figure S25 (Supporting Information), the ZSB‐1 nanosheet‐based sensor shows a linear range between 0 and 0.20 × 10 −3 m with the detection limit of 0.054 × 10 −6 m , while the detection limit of bulk ZSB‐1 is 0.110 × 10 −6 m (Figure S27, Supporting Information).…”

Section: Fluorescence Lifetime Decays and Photoluminescence Quantum Ysupporting

confidence: 86%

A Highly Solvent‐Stable Metal–Organic Framework Nanosheet: Morphology Control, Exfoliation, and Luminescent Property

Han

Dong

Chen

et al. 2018

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“…Heavy metal ions like Cr(VI), Fe(III) and Pb(II) play vital roles in textile, paper, manufacturing and steel fabrication. [1][2][3] Beyond their crucial functions in modern industry, these metal ions can be of great concern at elevated concentrations because of their toxicity as well as bioaccumulation tendencies. 4 It is thus of great signicance to design and synthesize effective and stable materials for removing these three metal ions by the preferred approaches from both scien-tic and practical perspectives.…”

Section: Introductionmentioning

confidence: 99%

A general route to modify diatomite with niobates for versatile applications of heavy metal removal

et al. 2019

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A general solution-phase strategy is developed to synthesize nanostructure niobates such as MnNb 2 O 6 , SnNb 2 O 6 and ZnNb 2 O 6 on natural mineral diatomite for water environmental remediation. (NH 4 ) 2 C 2 O 4 aqueous solution is the key to achieve a scalable and controllable synthesis of niobate/diatomite hybrid systems, which generates NH 3 $H 2 O for surface etching activation of diatomite, and H 2 C 2 O 4 for complexation dissolution of Nb 2 O 5 , enabling the heterogeneous crystallization process to proceed with controllable growth kinetics. First principle calculations indicate that both niobium atom and niobiumoxygen species have the lowest adsorption energy on SiO 2 surface, and then induce the nucleating process of Nb-O-Mn (or Zn, Sn) networks. Cr(VI), Fe(III), and Pb(II) ions are taken as target pollutants to evaluate the water-cleaning ability of the niobate-modified diatomite. Possible mechanisms for the photoreduction of Cr(VI), physical adsorption of Fe(OH) 3 colloids, and chemisorption of Pb(II) ions are proposed on the basis of experimentally investigations. The possibility of combining the advantages of natural mineral diatomite and nanostructured niobates provides a highly robust and potential material system with versatile functionalities of heavy metal ion removal, demonstrating great promise for a wide range of water purification.

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“…Carbon‐based materials have been widely used as catalyst supports such as graphene, reduced graphene oxide, carbon nanotubes, carbon nanofibers, mesoporous carbon nitride and mesoporous carbon and their hybrids . The structure and properties of carbon supports, such as surface functional groups, graphitization structure, and surface area, have a significant effect on the activity and selectivity of the catalyst thus attracting research interests in recent years in many fields including capacitors, catalysts, fuel cells, batteries and nanosensors . The reduced graphene oxide (RGO) exhibit a certain amount of oxygen functional groups with large surface area and also have a special electronic structure which facilitates functionalization with the organic fragment.…”

Section: Introductionmentioning

confidence: 99%

“…[16] The structure and properties of carbon supports, such as surface functional groups, graphitization structure, and surface area, have a significant effect on the activity and selectivity of the catalyst thus attracting research interests in recent years in many fields including capacitors, catalysts, fuel cells, batteries and nanosensors. [17][18][19][20][21][22][23][24] The reduced graphene oxide (RGO) exhibit a certain amount of oxygen functional groups with large surface area and also have a special electronic structure which facilitates functionalization with the organic fragment. The Au nanoparticles are capped with functional groups, such as thiol and thioester, amine or carboxylates.…”

mentioning

confidence: 99%

Multilayer‐Functionalized Reduced Graphene Oxide Decorated with Gold Nanoparticles as a Designed Nanonanocatalyst for the Selective Oxidation of Cyclohexene by Molecular Oxygen in a Solvent‐Free System

Nejad

Behzadi

Sheibani

2019

Applied Organom Chemis

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The aerobic oxidation of cyclohexene is of great significance from the viewpoints of both fundamental and industry studies as it can transfer the petrochemical feedstock into valuable chemicals. In this research, gold nanoparticles were synthesized on the multi‐layer functionalized reduced graphene oxide. The surface of reduced graphene oxide (rGO) was modified with hydrophobic and hydrophilic layers to create the rGO with scattered hydrophilic positions. The gold nanoparticles were synthesized and immobilized simultaneously in small hydrophilic micro reactors in a mild condition. Characterization of synthesized nanocatalyst was confirmed with different techniques such as TEM, XRD, FT‐IR, and SEM. TEM images of synthesized catalyst show the gold nanoparticles have diameters less than 5 nm. Designed nanonanocatalyst was investigated for the selective liquid phase oxidation of cyclohexene with molecular oxygen in solvent free condition which after optimized conditions a maximum of 88% conversion and 91% selectivity was obtained.

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A novel electrochemical sensor based on calixarene functionalized reduced graphene oxide: Application to simultaneous determination of Fe(III), Cd(II) and Pb(II) ions

Cited by 119 publications

References 40 publications

A Highly Solvent‐Stable Metal–Organic Framework Nanosheet: Morphology Control, Exfoliation, and Luminescent Property

A Highly Solvent‐Stable Metal–Organic Framework Nanosheet: Morphology Control, Exfoliation, and Luminescent Property

A general route to modify diatomite with niobates for versatile applications of heavy metal removal

Multilayer‐Functionalized Reduced Graphene Oxide Decorated with Gold Nanoparticles as a Designed Nanonanocatalyst for the Selective Oxidation of Cyclohexene by Molecular Oxygen in a Solvent‐Free System

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