Highly Efficient Synthesis of Environmentally Friendly Ag-modified TiO2 Nanoflowers to Enhance Photocatalytic Performance

Ag-modified TiO2 nanoflowers were prepared using a two-step process. The experimental process is green and free from contamination and can be synthesized directly at room temperature. Compared with pure TiO2, Ag-modified TiO2 enhances the absorption of visible light and effectively promotes the detachment of photoelectron pairs, Ag-TiO2 has a significantly enhanced visible light response activity to photodecomposition of methyl orange(MO). It is shown that the strong interaction between Ag nanoparticles and TiO2 enhances the photocatalytic activity of TiO2 nanoflowers. The self-made open-air reactor was used to test the photocatalytic performance of different samples. The results showed that Ag-modified TiO2 nanoflowers had excellent photodegradation ability. After repeated photodegradation of MO, Ag-modified TiO2 nanoflowers showed good stability.

在原子物理学教学中培养学生创新思维的探讨

在提高高校教育质量,促进创新人才培养的发展规划背景下,加强学生创新性思维培养,已经越来越受到关注和重视。原子物理学是众多杰出科学家创新思维和创新能力的结晶,作为物理专业的基础课,对学生创新性思维的培养有着举足轻重的作用。从原子物理学课程特点入手,对创新性思维融入到原子物理学课程教学的必要性、可行性做相应的探讨和研究。