Oxygen vacancy modulation of metal oxide photocatalysts has triggered an explosion of interest for the unprecedented and superior photoactivities. Herein, the influence of oxygen vacancies on the activity of {010}-faceted TiO₂ for photodegradating SMX was evaluated. Experimental studies indicated that the formation of oxygen vacancies was highly dependent with the thermal treatment atmosphere. Vacuum treatment was favorable for the generation of surface hydroxyl groups, which contributed to the interfacial extraction of holes. In contrast, air calcinations benefited the formation of surface defects. The enhanced charge separation resulted in the remarkably improved photoactivity for SMX degradation.

金属氧化物光催化剂的氧空位调节已经引发了人们对空前的，优异的光活性的关注。在此，评估氧空位对{010}面TiO ₂的光降解SMX活性的影响。实验研究表明，氧空位的形成高度依赖于热处理气氛。真空处理有利于表面羟基的产生，这有助于孔的界面萃取。相反，空气煅烧有利于表面缺陷的形成。增强的电荷分离导致SMX降解的光活性显着提高。