Ca 2+ substitution induced phase coexistence and synergistic regulation of Ti 3+ defects to improve piezoelectric–photocatalytic water splitting performance of BaTiO 3

作者：Tianyu Jia, Mengnan Ruan, Guangmin Li, Piotr Michorczyk, Chengyi Wang, Zhifeng Liu · 发表于：Journal of Materials Chemistry A · 年份：2025 · DOI：10.1039/d5ta08280c · 被引用次数：8 · 研究领域：Advanced Photocatalysis Techniques、TiO2 Photocatalysis and Solar Cells、Multiferroics and related materials

BaTiO 3 -Ca 0.2 photoanode with a coexisting tetragonal-orthorhombic phase involving Ti 3+ defects boosts piezo-photocatalytic water splitting performance via enhanced built-in piezoelectric field and shallow energy levels from orbital modulation.