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Green fabrication of 3-dimensional flower-shaped zinc glycerolate and ZnO microstructures for p-nitrophenol sensing
- Green fabrication of 3-dimensional flower-shaped zinc glycerolate and ZnO microstructures for p-nitrophenol sensing
- Sinhamahapatra, Apurba; Bhattacharjya, Dhrubajyoti; Yu, Jong-Sung
- DGIST Authors
- Yu, Jong-Sung
- Issue Date
- RSC Advances, 5(47), 37721-37728
- Article Type
- Amperometric Chemical Sensors; Electrodes; Environmental Pollutants; Glass Membrane Electrodes; Glassy Carbon; Glassy Carbon Electrodes; Glycerol; Green Reaction Medium; Material Synthesis; Modified Electrodes; Organic Transformations; Phenols; Solvents; Synthesis (Chemical); Zinc; Zinc Oxide; ZnO Microstructures
- The solvent or reaction medium always plays a lead role in synthesis chemistry. Glycerol has been studied as a green solvent for different organic transformations and is also expected to give interesting control in material synthesis. In this study, we use aqueous glycerol to synthesize zinc glycerolate and the corresponding ZnO micro-flower structures with an intention to encourage the utilization of glycerol as a green reaction medium in material synthesis. A zinc ammonium complex is used as a source of zinc, which converts to zinc glycerolate in the presence of glycerol. Glycerol plays a dual role as a reactant to form zinc glycerolate and as a solvent to control the morphology. The unreacted glycerol is recovered after the reaction and reused further. The flower-structured zinc glycerolate and ZnO are then used for the first time to modify a glassy carbon electrode to make a binder-free non-enzymatic amperometric chemical sensor for p-nitrophenol that is a brutal environmental pollutant. The modified electrode is found to be an excellent alternative for the purpose with respect to sensitivity, selectivity and stability. © 2015 The Royal Society of Chemistry.
- Royal Society of Chemistry
- Related Researcher
Yu, Jong Sung
Light, Salts and Water Research Group
Materials chemistry; nanomaterials; electrochemistry; carbon and porous materials; fuel cell; battery; supercapacitor; sensor and photochemical catalyst
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- Department of Energy Science and EngineeringLight, Salts and Water Research Group1. Journal Articles
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