Dual-Functional Graphene-Based Flexible Material for Membrane Filtration and Electrochemical Sensing of Heavy Metal Ions

Erçarıkcı, Elif; Alanyalıoğlu, Murat

doi:10.1109/jsen.2020.3021988

Cited by 31 publications

(17 citation statements)

References 42 publications

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“…region absorption behavior of GO, ZnONPs, and GO/ZnONPs dispersions. GO dispersion displays a maximum at 232 nm and a shoulder at 304 nm, which are consistent with ππ and n-π transitions, respectively [14,16]. ZnONPs include two separated bands at 269 and 372 nm, which comply with previous works [12,14].…”

Section: Resultssupporting

confidence: 88%

“…7. In this figure, a reversible peak pair of redox of Fe(CN)6 -3/-4 is observed [14] for both paper-like materials as expected, which means that these materials may be performed as working electrode for many electrochemical applications. Electrochemical performance of these electrodes can be compared by calculating the potential difference between cathodic and anodic peaks (ΔEp), in which lower ΔEp value stands for a better electrochemical activity.…”

Section: Figure 2 Uv-vis Absorption Data Of Various Aqueous Dispersionssupporting

confidence: 77%

“…Obviously, it can be claimed from Fig. 5 that the intensity of D band diminishes when compared to the intensity of G band after doping RGP with ZnONPs, which is associated with the reduction of defect density by patching disorders of rGO layers with ZnONPs [14]. In Fig.…”

Section: Figure 2 Uv-vis Absorption Data Of Various Aqueous Dispersionsmentioning

confidence: 85%

“…All of the synthesis procedures and experiments were performed in aqueous media using ultrapure water and the reagents were of analytical grade. Synthesis of GO sheets were achieved using modified Hummers method as described in our previous publications [2,7,14], in which high degree chemical oxidation of graphite resulted in formation of one-atom thick GO layers. To prepare ZnONPs, 5 mL of 1.0 M KOH solution was added to 25 mL of diethylene glycol while stirring.…”

Section: Methodsmentioning

confidence: 99%

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Fabrication of Reduced Graphene Oxide Paper Doped with Zinc Oxide Nanoparticles as Flexible Electrode Material

Erçarıkcı

Alanyalıoğlu

2021

Sakarya University Journal of Science

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The conventional electrodes like glassy carbon electrode and graphite are restricted for largescale electrochemical production and in-vivo applications. Therefore, flexible electrodes are beginning to replace with such electrodes. This work reports a simple preparation of flexible paper-like electrode material (FPEM) including reduced graphene oxide (rGO) and zinc oxide nanoparticles (ZnONPs) for possible electrochemical applications. For this purpose, graphene oxide dispersion was interacted with ZnONPs, filtered under vacuum effect through a membrane, peeled off the membrane and then reduced by hydrothermal reduction process. This FPEM was performed as working electrode for some redox processes and results revealed that rGO/ZnONPs paper allows a large potential region in acidic, basic, and neutral media for electrochemical processes.

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Section: Resultssupporting

confidence: 88%

Section: Figure 2 Uv-vis Absorption Data Of Various Aqueous Dispersionssupporting

confidence: 77%

Section: Figure 2 Uv-vis Absorption Data Of Various Aqueous Dispersionsmentioning

confidence: 85%

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Fabrication of Reduced Graphene Oxide Paper Doped with Zinc Oxide Nanoparticles as Flexible Electrode Material

Erçarıkcı

Alanyalıoğlu

2021

Sakarya University Journal of Science

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“…Nicotinamide adenine dinucleotide (NADH) is regarded as the most important coenzyme playing vital roles in various biocatalyzed reactions (e. g. mitochondrial activity, immunological functions, control of energy metabolism, aging, and cell death) . Until now, various methods have been reported for the detection of NADH content, such as chromatography , spectrophotometry , fluorimetry and electrochemical techniques .…”

Section: Introductionmentioning

confidence: 99%

One‐pot Electrochemical Synthesis of Ni Nanoparticles‐decorated Electroreduced Graphene Oxide for Improved NADH Sensing

et al. 2020

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Ni nanoparticles (NPs) decorated electrochemical reduced graphene oxide (NiNPs/ERGO) nanocomposites (NCs) on ITO electrode were successfully fabricated using one-pot simultaneously electrochemical co-reduction method at room temperature. The NiNPs/ERGO electrodes demonstrated very good electrocatalytic activity in the oxidation of NADH at a low oxidation potential (~+ 430 mV), a wide linear range (1-500 μM), a calculated detection limit of 0.002 μM. Compared to ERGO and NiNPs electrodes, the synthesized NiNPs/ERGO NCs have high electrocatalytic activity due to synergistic effect emerged between NiNPs and ERGO. The results indicated that the NiNPs/ERGO NCs can be easily prepared by one-pot electrochemical technique and NiNPs/ERGO could used to as potential biosensor for the NADH detection.

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Molecular Probe Embedded Porous Polymer Scaffold as Solid‐State Visual Sensor for Selective and Sequential Sensing of Ultra‐Trace Toxic Heavy Metal Ions in Environmental/Commercial Samples

Sivaraman,

Srinivasan,

Madhu

et al. 2023

Adv Funct Materials

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The article reports on the tailor‐made solid‐state optical sensor through controlled imbuement of an amphiphilic probe onto a dual interwoven macro‐/meso‐porous polymer monolithic scaffold for the selective ocular sensing of ultra‐trace toxic heavy metal ions. The structural/surface morphology of the poly(LMC‐co‐TMP) monolith is customized through the stochiometric inclusion of lauryl methacrylate (LMC), trimethyl propanetrimethacrylate (TMP) and porogenic solvents. The riveting sensing performance of the poly(LMC‐co‐TMP) scaffolds for the target ions arises from the built‐in twofold intermingled porous architects that render voluminous surface area and porosity for the embedding of 2‐((1H‐benzoimidazol‐2‐yl)‐4‐butan‐2‐yl)phenol (HBBP), a chromoionophoric probe. The sensor's unique structural and surface properties endure stable ion‐complexation through color transitions from yellow (blank) to a leafy green, peanut brown, and dark blue for Pb2+, Hg2+, and Cd2+, respectively. The sensor imposes high binding affinity for the target ions, with a linear response range of 0–200 ppb for Pb2+/Hg2+ and 0–300 ppb for Cd2+. The detection limit values are 0.46, 0.52, and 0.41 ppb for Pb2+, Hg2+, and Cd2+, respectively. The sensor's hassle‐free on‐field testing in environmental and synthetic samples reveals excellent data reproducibility (Relative Standard Deviation (RSD) ≤1.97%), with pH‐assisted reliable color transitions for eight regenerative trials, with a response time of 45 s.

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Dual-Functional Graphene-Based Flexible Material for Membrane Filtration and Electrochemical Sensing of Heavy Metal Ions

Cited by 31 publications

References 42 publications

Fabrication of Reduced Graphene Oxide Paper Doped with Zinc Oxide Nanoparticles as Flexible Electrode Material

Fabrication of Reduced Graphene Oxide Paper Doped with Zinc Oxide Nanoparticles as Flexible Electrode Material

One‐pot Electrochemical Synthesis of Ni Nanoparticles‐decorated Electroreduced Graphene Oxide for Improved NADH Sensing

Molecular Probe Embedded Porous Polymer Scaffold as Solid‐State Visual Sensor for Selective and Sequential Sensing of Ultra‐Trace Toxic Heavy Metal Ions in Environmental/Commercial Samples

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