Synthesis of Oval-Shaped Bi2Al4O9 Nanoparticles and Their Applications for the Degradation of Acid Green 25 and as Fuel Additives

The present study was designed to synthesize an oval-shapedbimetallicbismuth aluminate (Bi2Al4O9) nanoparticlesthrough a solvothermal approach. The resulting structure and morphologyof synthesized materials were characterized through X-ray diffractionand scanning electron microscopy. The catalytic performance of Bi2Al4O9 was investigated using acid green25 (AG-25) as the model dye. The effect of various parameters likecatalyst dose, H2O2 concentration, and temperatureon dye degradation was studied. The Bi2Al4O9 nanocomposite exhibited the maximum removal of 95% within50 min at 0.3 M H2O2 concentration, 0.05 mg/mLcatalyst dose, and 315 K temperature. The photocatalytic removal ofAG-25 followed pseudo-first-order kinetics. The thermodynamics studyexposed that thermal catalytic degradation is a spontaneous, endothermic,as well as entropy-driven reaction that moves in the forward directionat the higher temperatures. The Bi2Al4O9 composite was further applied as fuel additives in orderto study combustion and physical characteristics of the modified fuel.The efficacy of modified fuel was studied by investigating the fuelparameters at different Bi2Al4O9 dosages.Results revealed that synthesized NPs are excellent photocatalystsand could possibly be used for the removal of toxic pollutants.