123rd General Meeting of the KCS

Type Symposium
Area Synthesis and Application of Multifunctional Nanocatalyst Materials
Room No. Room 405+406
Time THU 16:05-16:30
Code MAT1-2
Subject Advanced TiO2 Nanomaterials for Photocatalytic Applications
Authors Jongmin Choi
Department of Energy Science & Engineering, Daegu Gyeongbuk Institute of Science & Technology, Korea
Abstract Titanium dioxide (TiO2) is one of the most popular photocatalytic materials because of their abundance, low material cost, and outstanding chemical and photochemical stability. With these benefits, TiO2 nanomaterials are widely applied in photocatalytic applications including hydrogen production, air pollutant degradation, water purifications etc. Despite their promising characteristics, several characteristics of TiO2 stand to be improved further. For example, TiO2 has narrow light harvesting absorption window, and TiO2 nanoparticles, which is the most widely used TiO2 nanostructure, suffers from the catalyst deactivation which is induced by the accumulation and strong adsorption of by-products induced by photocatalytic reactions. To address these issues, we developed freestanding doubly open-ended TiO2 nanotube membrane via facile fabrication process and chemical engineering. These advanced TiO2 nanomaterials demonstrated promising photocatalytic activities for water splitting and degradation of volatile organic compounds compared to those of conventional TiO2 nanoparticles. In this presentation, I will introduce design, synthesis, engineering and applications of these advanced TiO2 nanomaterials.
E-mail whdals1062@dgist.ac.kr