Hu Jie, Shan Xianhao, Wu Shan, Sun Pengfei, Gao Zhengyuan, Ren Zhong, Feng Xiangchao, Wang Shuai
School of Materials and Science, Chongqing Jiaotong University, Chongqing, China.
School of Mechatronics and Vehicle Engineering, Chongqing Jiaotong University, Chongqing, China.
Front Chem. 2025 Jun 5;13:1621188. doi: 10.3389/fchem.2025.1621188. eCollection 2025.
As an efficient and environmentally friendly photocatalyst, TiO has garnered significant interest among researchers. However, the rapid recombination of photogenerated carriers leads to the inhibition of its photocatalytic activity. Fluorine modification has been proven to be an effective method to improve the photocatalytic performance of TiO, leading to a multitude of research reports on this subject. Surface fluorine adsorption or lattice fluorine doping can deftly modulate the surface chemical attributes and electronic configuration of the TiO photocatalyst, thereby amplifying its functional performance. The role of fluorine atoms coordinated with different number titanium atoms (terminal Ti-F, bridging Ti-F and Ti-F) are also discussed. This paper provides a minireview of various aspects of fluorine-modified TiO, including its classification (surface-adsorbed fluorination, lattice-doped fluorination and Ti-F) and characterization techniques (X-ray photoelectron spectroscopy and solid-state nuclear magnetic resonance). Finally, this treatise elucidates the mechanistic impact of fluorine modification on the photocatalytic hydrogen production performance of TiO.
作为一种高效且环保的光催化剂，TiO已引起研究人员的广泛关注。然而，光生载流子的快速复合会抑制其光催化活性。氟改性已被证明是提高TiO光催化性能的有效方法，这导致了关于该主题的大量研究报告。表面氟吸附或晶格氟掺杂可以巧妙地调节TiO光催化剂的表面化学性质和电子构型，从而增强其功能性能。还讨论了与不同数量钛原子配位的氟原子（末端Ti-F、桥连Ti-F和Ti-F）的作用。本文对氟改性TiO的各个方面进行了简要综述，包括其分类（表面吸附氟化、晶格掺杂氟化和Ti-F）和表征技术（X射线光电子能谱和固态核磁共振）。最后，本论文阐明了氟改性对TiO光催化产氢性能的作用机制。
