3D Modeling of Silver Doped ZrO2 Coupled Graphene-Based Mesoporous Silica Quaternary Nanocomposite for a Nonenzymatic Glucose Sensing Effects

Abstract

We described the novel nanocomposite of silver doped ZrO2 combined graphene-based mesoporous silica (ZrO2-Ag-G-SiO2,) in bases of low-cost and self-assembly strategy. Synthesized ZrO2-Ag-G-SiO2 were characterized through X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectrometry (EDX), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), Raman spectroscopy, Nitrogen adsorption-desorption isotherms, X-ray photoelectron spectroscopy (XPS), and Diffuse Reflectance Spectroscopy (DRS). The ZrO2-Ag-G-SiO2 as an enzyme-free glucose sensor active material toward coordinate electro-oxidation of glucose was considered through cyclic voltammetry in significant electrolytes, such as phosphate buffer (PBS) at pH 7.4 and commercial urine. Utilizing ZrO2-Ag-G-SiO2, glucose detecting may well be finished with effective electrocatalytic performance toward organically important concentrations with the current reaction of 9.0 × 10−3 mAcm−2 and 0.05 mmol/L at the lowest potential of +0.2 V, thus fulfilling the elemental prerequisites for glucose detecting within the urine. Likewise, the ZrO2-Ag-G-SiO2 electrode can be worked for glucose detecting within the interferometer substances (e.g., ascorbic corrosive, lactose, fructose, and starch) in urine at proper pH conditions. Our results highlight the potential usages for qualitative and quantitative electrochemical investigation of glucose through the ZrO2-Ag-G-SiO2 sensor for glucose detecting within the urine concentration.

Cu- and Sn-Codoped Mesoporous BaTiO3-G-SiO2 Nanocomposite for Bioreceptor-Free, Sensitive, and Quick Electrochemical Sensing of Rhizopus stolonifer Fungus

“…Synthesis of Mesoporous CuSnBTGS. The Cu-and Sncodoped BaTiO 3 -G solution was added drop by drop in a beaker containing 0.13 g of synthesized mesoporous silica, 22 and the mixture was stirred at 100 °C for 24 h. After 24 h of stirring, the mixture was exposed to 1 h of ultrasonication. Next, the powder was filtered, rinsed with ethanol, and dried at 65 °C overnight.…”

A Novel Responsive Sensor for Penicillium italicum Fruit Fungus Based on Mesoporous CaMn4O8-G-SiO2 Nanocomposite

“…Figure S1c of the SI shows the C1s spectra exhibit peaks at (284.08 and 289.08) eV that are thought to represent C − C bonding and O − C = O. Figure S1d of the SI, which depicts O1s spectra, shows C − O bonding at 532.02 eV [20]. The presence of SiO 2 on the CaMnGS surface is seen in Fig.…”

Methanol and Ethanol Electrooxidation on ZrO2/NiO/rGO

“…In addition, we must mention the wide application of ZrO 2 and NiO in other electrochemical applications such as electrochemical biosensors [ 33 , 34 ] and electrochemical detection of various drugs [ 35 , 36 ], antibacterial and photocatalytic properties [ 37 , 38 , 39 ], as well as in the oxidation process of many materials such as urea, glucose, various sugar alcohols, etc. [ 40 , 41 ].…”