ϒ-Alumina Vanadate (AlV2O7) Nanoparticles: Synthesis and Characterization

Abstract

Solution combustion Method for synthesis of alumina nanoparticles in a microwave oven represents a well-established technique for the fabrication of bimetallic metal oxide nanomaterials. In this process, citric acid functions as a pivotal fuel, facilitating the combustion of single-phase oxide materials and enabling the synthesis of multiphase nanomaterials. Utilizing self-propagating combustion methods with citric acid as the fuel source, nanoscale Alumina vanadate (AlV2O7) materials can be successfully synthesized. The synthesis procedure involves the ignition of Aluminum oxide (AlO2) and ammonium meta-vanadate (NH4 (VO3)) in an open environment, allowing complete combustion to occur within approximately 15 minutes in a microwave setting. The precursor concentrations used 13.31 g/50 ml for Aluminum oxide and 0.7291 g/50 ml for ammonium meta-vanadate. Heating parameters included a microwave power of 2.45GHZ 800 watts and a reaction time of 15 minutes. Subsequent research endeavors have focused on investigating the adsorption behavior of lead and mercury ions onto the resultant sample. Due to the impressive adsorption active sites that are present on the sample, this sample exhibits significant adsorption. The produced metal oxide sample behaves well as adsorbents for heavy metal ions, according to an adsorption research. , and their potential applications can be use as Catalysis, sensing, Energy Storage, Environmental Remediation. The structural characteristics of the as-prepared AlV2O7 and the adsorbed sample were meticulously examined using powder X-ray diffraction (XRD) analysis. Morphological analysis of the freshly synthesized AlV2O7 and the adsorbed sample material was conducted using scanning electron microscopy (SEM) and Transmission Electronic Microscopy (TEM). FTIR Analysis was also employed to characterize the functional groups present the peak 3800 cm-1 corresponds to the water of absorption's vibration frequency at 1089 cm- are assigned to the V=O stretching mode. RAMAN (125.1, 213.6 and 307.2 cm-1 is assigned to AlO2) and The band appeared at 702 cm-1 in the Raman spectrum can be ascribed to stretching vibration of short V=O bond. Furthermore, a comprehensive study was carried out to evaluate the adsorption efficacy of heavy metal ions onto the AlV2O7 sample at ambient temperature (400-600℃).