Preparation And Characterization Of MgO Nanobelts

MgO nanobelts is one-dimensional nanomaterials, because of its unique features smallsize effect, tunneling, dielectric effects, etc., it has properties which is different from the bulkmaterial in the electrical, optical, magnetic, chemical, etc., MgO nanomaterials has greatpotential in fungicides, refractories, electrochemical biosensor applications.Firstly, In this article, with application of DC arc plasma jet CVD (DC Arc Plasma JetCVD), by controlling the reaction time, we successfully preparate a set of differentmorphological structure of MgO nano-materials, and through SEM, TEM, XRDcharacterization methods, we observed and analysised the morphology, composition,structure and other characteristics of the various reactions time, and successfully analysis thegrowth mechanism of preparation MgO nanobelts: the whole process are the results ofgas-liquid solid "VLS" and liquid-solid "LS" growth pattern working togeter. The preparationof MgO nanobelts has many advantages compared with the other experiments of MgOnanobelts with the growth time is short, low cost, low power consumption and pollution.Then, the paper used Fourier transform infrared absorption spectroscopy (FTIR),photoluminescence spectroscopy (PL), UV-VIS absorption spectroscopy (UV-vis) and otheroptical analytical tools to study the optical properties of MgO nanobelts, and analysis thecharacteristics of its thermal gravimetric by TGA. found by profiling, MgO nanobeltsprepared in this experiment has a large number of defects, because of these defects, and thelarge specific surface area with its unique characteristics, makes the surface of the MgOnanobelts has a large number of low-oxygen complex ion (OLC2-), including (O2-5C,O2--4C,O23C),and due to the presence of these low-coordinated oxygen ions, the MgO nanobelts prepared inthis experiment have superior electro-catalytic properties with other materials, it havs broadapplication prospects in the field of electrochemical sensors.Finally, we study the electrochemical properties of MgO nanobelts in detectingphenylene (HQ) and phthalic (CC) using electrochemical workstation. Firstly, by comparingthe cyclic voltammetry (CV) of the bare glassy carbon electrode (GCE) and magnesium oxidenanobelts modified glassy carbon electrode (MgO/CS/GCE) for detecting the HQ and CC,MgO/CS/GCE’s electrocatalytic properties significantly better than the bare GCE electrode;then analysis the individual DPV detection of MgO/CS/GCE HQ and CC, compared withother nanomaterials, MgO nanobelts has very low detection limits and very high sensitivitywith HQ and CC for; lastly studying the MgO/CS/GCE’s simultaneous detection to HQ andCC with DPV,compared to other materials, MgO nanobelts also exhibits excellent detectionlimit and sensitivity in selective detecting this isomers.