Visible Light Active 0.95KNbO3‐0.05Ba(Nb1/2Sc1/2)O3 Ferroelectric for Enhanced Photocatalytic Activity DOI

Devender Takhar,

Ankit Chahar,

Deepanshu Sharama

et al.

Advanced Sustainable Systems, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 15, 2024

Abstract This study reports a visible light active Ba/Sc co‐doped potassium niobate (KNbO 3 ) ferroelectric material for enhanced photocatalytic applications. Through 5% Ba and Sc co‐doping in KNbO (i.e., 0.95KNbO ‐0.05Ba(Nb 1/2 )O ), the electronic band gap (E g is narrowed down to range of solar spectrum. The prepared samples are systematically examined by using X‐ray diffraction Raman spectroscopy, which confirms successful incorporation ions into lattice. Scanning electron microscopy (SEM) energy dispersive spectroscopy (EDS) analysis reveal particle morphology chemical homogeneity samples. UV–vis PE‐loop demonstrate optical absorption compared host while retaining behavior. photoelectrochemical (PEC) measurements under irradiation notable enhancement photocurrent (hereafter denoted 5KBSNO) undoped . Additionally, 5KBSNO sample displays RhB dye degradation efficiency, reaching ≈50% parent (≈30%) irradiation. First‐principles density functional theory (DFT) calculations employed understand mechanism responsible reduced gap. presents promising developing advanced photocatalysts with tailored structures efficient harvesting conversion contamination remediation

Language: Английский

Visible Light Active 0.95KNbO3‐0.05Ba(Nb1/2Sc1/2)O3 Ferroelectric for Enhanced Photocatalytic Activity DOI

Devender Takhar,

Ankit Chahar,

Deepanshu Sharama

et al.

Advanced Sustainable Systems, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 15, 2024

Abstract This study reports a visible light active Ba/Sc co‐doped potassium niobate (KNbO 3 ) ferroelectric material for enhanced photocatalytic applications. Through 5% Ba and Sc co‐doping in KNbO (i.e., 0.95KNbO ‐0.05Ba(Nb 1/2 )O ), the electronic band gap (E g is narrowed down to range of solar spectrum. The prepared samples are systematically examined by using X‐ray diffraction Raman spectroscopy, which confirms successful incorporation ions into lattice. Scanning electron microscopy (SEM) energy dispersive spectroscopy (EDS) analysis reveal particle morphology chemical homogeneity samples. UV–vis PE‐loop demonstrate optical absorption compared host while retaining behavior. photoelectrochemical (PEC) measurements under irradiation notable enhancement photocurrent (hereafter denoted 5KBSNO) undoped . Additionally, 5KBSNO sample displays RhB dye degradation efficiency, reaching ≈50% parent (≈30%) irradiation. First‐principles density functional theory (DFT) calculations employed understand mechanism responsible reduced gap. presents promising developing advanced photocatalysts with tailored structures efficient harvesting conversion contamination remediation

Language: Английский

Citations

0