Design of heterostructured perovskites for enhanced photocatalytic activity: Insight into their charge carrier dynamics

Efficient degradation of endocrine-disrupting compounds by heterostructured perovskite photocatalysts and its correlation with their ferroelectricity

“…1, as reported by us. 42,45 The PXRD patterns of bare BiFeO 3 and its heterostructures show prominent peaks, resembling JCPDS file no. 71-2494 and thus confirming the formation of the rhombohedral phase of BiFeO 3 .…”

“…The detailed morphological and EDX analysis for bare BiFeO 3 and the heterostructured BiFeO 3 undertaken by FESEM have been discussed by us elsewhere in detail. 42 The bare BiFeO 3 comprises aggregated spherical-shaped particles (Fig. 2).…”

“…BiFeO 3 nanoparticles were synthesized by sol–gel route. 42 Bi(NO 3 ) 3 ·5H 2 O (1.5 g) and Fe(NO 3 ) 3 ·9H 2 O (1.2 g) were dissolved in deionized water (50 mL) comprising concentrated HNO 3 (3 mL) and tartaric acid (450 mg) at 115 °C. The obtained solid precipitate was subjected to drying at 150 °C and then annealed for 2 h at 600 °C under air atmosphere to obtain BiFeO 3 powder.…”

“…An aqueous solution containing bismuth nitrate pentahydrate (1.5 g), iron nitrate nonahydrate (1.2 g), NaNbO 3 (163 mg), concentrated HNO 3 (3 mL) and tartaric acid (450 mg) was reacted at 115 °C. 42 The product, brownish in color, was recovered by drying at 150 °C and subsequent calcination for 2 h at 600 °C.…”

NaNbO3/NaTaO3 Superlattices: Cation-Ordering Improved Band-Edge Alignment for Water Splitting and CO2 Photocatalysis

“…Also, LaCrO 3 –NaTaO 3 solid solutions have performed improved photocatalytic reactions with an enhanced electron population due to a charge compensation mechanism that sensitizes the tantalate to visible light . Similarly, BiFeO 3 , NaNbO 3 , KNbO 3 , KTaO 3 , NaTaO 3 , and other tantalate-based − heterostructures have been synthesized and showed benefits compared to their bulk parts.…”