| 학회 | 한국화학공학회 |
| 학술대회 | 2015년 봄 (04/22 ~ 04/24, 제주 ICC) |
| 권호 | 21권 1호, p.267 |
| 발표분야 | 미립자공학 |
| 제목 | TiO2/WO3 photocatalyst for Decomposing Organic Molecules |
| 초록 | Photocatalysis has been widely studied in the last decades as one of the most effective techniques for the abatement of organic and inorganic pollutants of water and air, as well as a mean to convert solar into chemical energy. TiO2 is by far the most used semiconductor because of its superior photocatalytic activity, chemical stability, low cost, and nontoxicity. But TiO2 has a relatively high energy band gap material that can be excited under UV irradiation. Also it has a low rate of electron transfer to reducible species and a high recombination rate of the photoproduced electron/hole pairs limit the rate of photocatalytic reactions. Aiming at producing TiO2 based photocatalytic materials with reduced charge carriers recombination and sensitising visible light, TiO2/WO3 mixed oxides were synthesized by a sol–gel method employing H2WO4. Changing pH condition to find differance of the amount of heterojuction. Photocatalytice efficiency is measured by Methylene blue decomposition(AM 1.5G). The particles are characterized by XRD, XPS, BET and zeta potential. |
| 저자 | 최태석, 김정현 |
| 소속 | 서울시립대 |
| 키워드 | TiO2/WO3; photocatalyst; Methylene blue |
| 원문파일 | 초록 보기 |
