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Browsing by Author "Oh W.-C."

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A Fluorescence Switching Sensor for Sensitive and Selective Detections of Cyanide and Ferricyanide Using Mercuric Cation-Graphene Quantum Dots

Kongsanan N.; Pimsin N.; Keawprom C.; Sricharoen P.; Areerob Y.; Nuengmatcha P.; Oh W.-C.; Chanthai S.; Limchoowong N. (2021)

This study aims to use graphene quantum dots (GQDs) as a fluorescence switching sensor (turn on-off) for the simultaneous detection of cyanide (CN-) and ferricyanide [Fe(CN)6]3- in wastewater samples. The GQDs were synthesized ...
Novel gamma-irradiated chitosan-doped reduced graphene-CuInS2 composites as counter electrodes for dye-sensitized solar cells

Areerob Y.; Hamontree C.; Sricharoen P.; Limchoowong N.; Laksee S.; Oh W.-C.; Pattarith K. (Royal Society of Chemistry, 2022)

To address the issues associated with traditional counter electrodes, a novel gamma-irradiated chitosan-doped reduced graphene-CuInS2 composite (Chi@RGO-CIS) was used as the counter electrode (CE). The system was fabricated ...
Selective Fe(ii)-fluorescence sensor with validated two-consecutive working range using N,S,I-GQDs associated with garlic extract as an auxiliary green chelating agent

Pimsin N.; Keawprom C.; Areerob Y.; Limchoowong N.; Sricharoen P.; Nuengmatcha P.; Oh W.-C.; Chanthai S. (Royal Society of Chemistry, 2022)

The goal of this work was to use the pyrolysis process to synthesize graphene quantum dots doped with garlic extract (as N,S-GQDs) and simultaneously co-doped with iodine (as I-GQDs). XPS, HR-TEM, FE-SEM/EDX, FT-IR, ...
Sono-synthesized Fe3O4–GO–NH2 nanocomposite for highly efficient ultrasound-assisted magnetic dispersive solid-phase microextraction of hazardous dye Congo red from water samples

Sricharoen P.; Chanthai S.; Lamaiphan N.; Sakaew C.; Limchoowong N.; Nuengmatcha P.; Oh W.-C. (2021)

This research focuses on the preparation of amino-functionalized magnetic graphene oxide nanocomposite (Fe3O4–GO–NH2), which increases the pre-concentration efficiency of Congo red residue in water samples. Their ...
Sono-synthesized Fe3O4–GO–NH2 nanocomposite for highly efficient ultrasound-assisted magnetic dispersive solid-phase microextraction of hazardous dye Congo red from water samples

Sricharoen P.; Chanthai S.; Lamaiphan N.; Sakaew C.; Limchoowong N.; Nuengmatcha P.; Oh W.-C. (2020)

This research focuses on the preparation of amino-functionalized magnetic graphene oxide nanocomposite (Fe3O4–GO–NH2), which increases the pre-concentration efficiency of Congo red residue in water samples. Their ...
Synthesis of novel MoWO4 with ZnO nanoflowers on multi-walled carbon nanotubes for counter electrode application in dye-sensitized solar cells

Areerob Y.; Hamontree C.; Sricharoen P.; Limchoowong N.; Nijpanich S.; Nachaithong T.; Oh W.-C.; Pattarith K. (Nature Research, 2022)

Novel MoWO4 with ZnO nanoflowers was synthesized on multi-walled carbon nanotubes (MW-Z@MWCNTs) through a simple hydrothermal method, and this unique structure was applied as a counter electrode (CE) for dye-sensitized ...
Ultratrace Detection of Nickel(II) Ions in Water Samples Using Dimethylglyoxime-Doped GQDs as the Induced Metal Complex Nanoparticles by a Resonance Light Scattering Sensor

Pimsin N.; Kongsanan N.; Keawprom C.; Sricharoen P.; Nuengmatcha P.; Oh W.-C.; Areerob Y.; Chanthai S.; Limchoowong N. (2021)

This study aimed to synthesize dimethylglyoxime (DMG) (N-source)-doped graphene quantum dots (N-GQDs) via simultaneous pyrolysis of citric acid and 1.0% (w/v) DMG. The maximum excitation wavelength (λmax, ex = 380 nm) of ...

Now showing items 1-7 of 7

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