No abstract

No abstract

Abstract:This study aimed to develop a photocatalyst that responds to visible light. For the preparation of visible light sensitive photocatalysts, N was doped into TiO 2 (N-TiO 2) . To inhibit the recombination of excited electrons and holes, transition metals (M = Pt, Cu, Fe, Cr) were loaded on the N-TiO 2 . N-TiO 2 nanotubes were also synthesized by a hydrothermal treatment of the prepared N-TiO 2 in a strong basic environment. The prepared photocatalysts were characterized by XRD, FESEM, HRTEM, XPS, and UV/VIS spectrophotometer, and their photocatalytic activity was tested by the photodecomposition of liquid-phase methylene blue and gas-phase acetone.

This research has been started with the goal of design and implementation of more innovative next generation security equipment system by understanding and reviewing the technological trend and status of security equipment system. The importance of environmental protection and management is ever increasing recently. Various types of equipment and system solutions are used according to the development of CCTV technology, but more efficient environmental protection and management are not in place because of situational restrictions such as expensive equipment and hard to install. Next generation security equipment system is designed and implemented to compensate and innovate these problem, and it is expected to utilize more effectively with lower cost through this research. In addition, methodology to inquire this system is proposed for security equipment system solution.

No abstract