Tailoring the structural,magnetic and antimicrobial activity of AgCrO2 delafossite at high annealing temperature

In the present study, we prepared AgCrO₂ delafossite at high annealing temperature 800 °C by flash auto-combustion technique which is an easy and a low-cost method. The objective of this study was to tailor the structural, magnetic and antimicrobial study of AgCrO₂ delafossite at this high annealing temperature (800 °C) which can be used in the fascinating applications. The sample was examined using X-ray diffraction pattern to confirm its single-phase hexagonal structure. Moreover, the morphology was analyzed by the field-emission scanning electron microscopy to clarify that AgCrO₂ delafossite was in the nanoscale range. The energy-dispersive X-ray analysis was performed to show the composition of the sample. The room-temperature magnetic hysteresis loop assured that the sample had superparamagnetic behavior. The investigated sample AgCrO₂ delafossite can be considered to have a strong antibacterial activity against Gram-positive and Gram-negative bacteria. However, by studying the effect of AgCrO₂ delafossite against fungi microorganism, no activity was detected using AgCrO₂ delafossite. The promising application of this study is to add AgCrO₂ delafossite to various drugs as an antibacterial agent.