Zhidong Wei*, Yuchen Zhang, Jiawei Yan, Jiasheng Chi, Huoshuai Huang, Qianxiang Su, Junying Liu and Wenfeng Shangguan*,
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Revealing the Photocatalytic Dynamic Mechanism of TiO6 Polarization Regulation in Al-Doped SrTiO3: γ-Al2O3 Phase Transformation for Trapping the Photogenerated Holes
In this work, the grinding angle hexahedron SrTiO3 was prepared and modified by Al doping methods, which could improve its photocatalytic overall water splitting performance. The Raman spectrum results indicated that the TiO6 polarizability could be modified with γ-Al2O3 doping. More importantly, the 27Al NMR spectroscopy analysis indicated that the AlO4, which originated from the nano γ-Al2O3 as the Al-doping sources, tends to be transformed into AlO6 to form α-Al2O3 to influence the TiO6 polarizability and further accelerates the separation of the photocarriers via AlO6 served as the trap of the photogenerated holes, which could be proved by the dynamic analysis of transient absorption spectroscopy (TAS).
期刊介绍：
ACS Materials Letters is a journal that publishes high-quality and urgent papers at the forefront of fundamental and applied research in the field of materials science. It aims to bridge the gap between materials and other disciplines such as chemistry, engineering, and biology. The journal encourages multidisciplinary and innovative research that addresses global challenges. Papers submitted to ACS Materials Letters should clearly demonstrate the need for rapid disclosure of key results. The journal is interested in various areas including the design, synthesis, characterization, and evaluation of emerging materials, understanding the relationships between structure, property, and performance, as well as developing materials for applications in energy, environment, biomedical, electronics, and catalysis. The journal has a 2-year impact factor of 11.4 and is dedicated to publishing transformative materials research with fast processing times. The editors and staff of ACS Materials Letters actively participate in major scientific conferences and engage closely with readers and authors. The journal also maintains an active presence on social media to provide authors with greater visibility.
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