Bandgap engineered (tin & carbon co-doped) BISMUTH TITANATE (cas 12233-34-0) nanowires for improved visible-light assisted photocatalytic application

Add time:08/06/2019    Source:sciencedirect.com

An enhanced visible light photocatalytic performance of band-gap engineered BISMUTH TITANATE (cas 12233-34-0) photocatalyst by tin and carbon (Sn&C) codoping is being reported in the present work. The photocatalyst sample was synthesized by the Pechini route and characterized by powder XRD, micro-Raman, XPS and HR-TEM studies. The photocatalytic performance of co-doped bismuth titanate was evaluated by the degradation of malachite green under the irradiation of natural sunlight. The photocatalytic results showed that Sn&C codoped bismuth titanate degraded the pollutant in 3 h whereas pristine bismuth titanate takes longer irradiation time (>5 h) for the complete degradation of malachite green. The improved visible light photocatalytic performance of Sn&C codoped bismuth titanate can be attributed to the significant decrease in the band gap energy (1.8 eV) relative to the pristine bismuth titanate (3.05 eV) coupled with high porosity, larger surface area and nanowire like morphology.

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