Investigation of structural, optical and photocatalytic properties of W(0.99)Pd(0.01)O3 nanoparticles

Abstract

In the present work, the effective degradation of a commonly used textile dyemethylene blue (MB) in the presence of photocatalyst was investigated under visible light irradation. For this, pd-doped WO3 nanoparticles were synthesized via rapid co-precipitation method. The obtained sample was characterized via powder X-Ray diffractometry for crystallinity analysis and phase structure, SEM for morphological analysis,UV-vis spectroscopy for optical studies. The diffraction peaks obtained from XRD pattern are highly intense that shows crystallinity of the sample (average crystallite size of NPs are ∼33 nm). The efficiency of degradation of the MB dye in the presence of W(0.99) Pd(0.01)O3 photocatalyst was (∼97% in 140 min) with rate constant (∼0.021831 min-1). This shows Pd-doped WO3 has high sensitivity to absorb visible light due to its small band gap (Eg∼2.45 eV).In the present work, the effective degradation of a commonly used textile dyemethylene blue (MB) in the presence of photocatalyst was investigated under visible light irradation. For this, pd-doped WO3 nanoparticles were synthesized via rapid co-precipitation method. The obtained sample was characterized via powder X-Ray diffractometry for crystallinity analysis and phase structure, SEM for morphological analysis,UV-vis spectroscopy for optical studies. The diffraction peaks obtained from XRD pattern are highly intense that shows crystallinity of the sample (average crystallite size of NPs are ∼33 nm). The efficiency of degradation of the MB dye in the presence of W(0.99) Pd(0.01)O3 photocatalyst was (∼97% in 140 min) with rate constant (∼0.021831 min-1). This shows Pd-doped WO3 has high sensitivity to absorb visible light due to its small band gap (Eg∼2.45 eV).