This work aims to develop a highly e cient solar light-induced photocatalyst based on La Mn co-doped Fe 2 O 3 nanoparticles. Pure Fe 2 O 3 and La Mn co-doped Fe 2 O 3 nanoparticles were fabricated by a simple co-precipitation method. The photocatalysts were analyzed for their morphological, structural, and magnetic characteristics. The photocatalytic performance of the Fe 2 O 3 , La 0.1 Mn 0.3 Fe 1.60 O 3 , and La 0.2 Mn 0.2 Fe 1.60 O 3 catalysts was assessed by their capability to degrade Rhodamine B (RhB) under solar light illumination. La 0.2 Mn 0.2 Fe 1.60 O 3 displayed exceptional degradation performance, degrading RhB to 91.78% in 240 min, in comparison to La 0.1 Mn 0.3 Fe 1.60 O 3 (71.09%) and pristine Fe 2 O 3 (58.21%) under speci ed reaction conditions [(RhB) = 50 ppm; (catalyst) = 40 mg/L; pH = 7; T = 25 ºC)]. The increased photocatalytic performance of La 0.2 Mn 0.2 Fe 1.60 O 3 was attributed to the large surface area of the catalyst as a result of La Mn co-doping. RhB degradation was affected by changing pH, catalytic dosage, dye concentration and temperature. The degradation of RhB was found to be pseudo-1st order kinetics. The photocatalyst material exhibited exceptional stability in four consecutive cyclic runs. The excellent photodegradation potential of La 0.2 Mn 0.2 Fe 1.6 O 3 nanoparticles suggests that the effective eradication of organic pollutants can be achieved by these particles.
This work aims to develop a highly efficient solar light-induced photocatalyst based on La˗Mn co-doped Fe2O3 nanoparticles. Pure Fe2O3 and La˗Mn co-doped Fe2O3 nanoparticles were fabricated by a simple co-precipitation method. The photocatalysts were analyzed for their morphological, structural, and magnetic characteristics. The photocatalytic performance of the Fe2O3, La0.1Mn0.3Fe1.60O3, and La0.2Mn0.2Fe1.60O3 catalysts was assessed by their capability to degrade Rhodamine B (RhB) under solar light illumination. La0.2Mn0.2Fe1.60O3 displayed exceptional degradation performance, degrading RhB to 91.78% in 240 min, in comparison to La0.1Mn0.3Fe1.60O3 (71.09%) and pristine Fe2O3 (58.21%) under specified reaction conditions [(RhB) = 50 ppm; (catalyst) = 40 mg/L; pH = 7; T = 25 ºC)]. The increased photocatalytic performance of La0.2Mn0.2Fe1.60O3 was attributed to the large surface area of the catalyst as a result of La˗Mn co-doping. RhB degradation was affected by changing pH, catalytic dosage, dye concentration and temperature. The degradation of RhB was found to be pseudo-1st order kinetics. The photocatalyst material exhibited exceptional stability in four consecutive cyclic runs. The excellent photodegradation potential of La0.2Mn0.2Fe1.6O3 nanoparticles suggests that the effective eradication of organic pollutants can be achieved by these particles.
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