Enhanced electrochemical sensor and photodegradation of industrial wastewater by Almond gum assisted synthesis of Bi 2 O 3 /MgO/Fe 2 O 3 nanocomposites

The present investigation focused on a development of Bi 2 O 3 /MgO/Fe 2 O 3 (BMF) heterojunction nanocomposites by Almond gum mediated green solution combustion process. The optical and structural characterizations of nanocomposite-photocatalysts were studied by spectral techniques; P-XRD study confirms the phase formation and crystalline nature of NPs with its average particle size was found to be 28 ​nm. The surface morphology of synthesized nanocomposites comprises visible pores, voids and agglomeration obtained by SEM technique. The effective potential investigation of prepared BMF nanocomposite-graphite paste electrode in 0.1 ​M KCl solution was achieved using electrochemical analysis (CV and EIS techniques) in the different scan rates 0.01–0.05 ​V/s. Further, the sensor activity of BMF material was examined first time towards paracetamol sensor studies in alkaline medium for quantities of 1–5 ​mM concentrations. The photocatalytic degradation activity was carried out for 20 ​ppm of Fast Orange Red (FOR) dye with 50 ​mg of BMF nanocomposite under irradiation of UV light. These analysis initiates to provide some insights into the design of material for multifunctional long-term applications for environmental clean-up.