| 학회 | 한국재료학회 |
| 학술대회 | 2020년 가을 (11/18 ~ 11/20, 휘닉스 제주 섭지코지) |
| 권호 | 26권 1호 |
| 발표분야 | C. 에너지 재료 분과 |
| 제목 | Characterization and photocatalytic performance under light irradiation; Transition Elements-doped TiO2 nanoparticles |
| 초록 | Van-Quyet Nguyen 1 and Bee Lyong Yang1* 1 Department of Materials Science and Engineering, Kumoh National Institute of Technology (KIT), 61 Daehak-ro, Gumi-si, Gyeongsangbuk-do, 39177, South Korea Fax: +82-(54)-478-7741 E-mail address: [email protected] Abstract: In our study, TiO2 nanoparticles, doped or co-doped with iron, nickel or cobalt (Fe, Ni, Co) were prepared by a sol-gel method. Platinization (Pt loading 0.5 wt%) of M-TiO2 (M: dopant element) was carried out using a photodeposition method. The characterizations of nanoparticles were investigated by X-ray diffraction (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and UV-vis. The ammonia decomposition test under light irradiation was used to evaluate the photocatalytic performance of Fe, Ni, Co doped and co-doped TiO2 nanoparticles. XPS results confirm that Fe, Ni, or Co were doped in the TiO2 nanoparticles. The UV-vis spectrum showed that Fe, Ni or Co doping in the TiO2 induced a significant absorbance in visible region and the band gap energy decreased from 2.94 (TiO2 nanoparticles without doping) to 1.9 eV (Fe doped TiO2 nanoparticles). In addition, Fe, Ni and Co co-doped TiO2 nanoparticle revealed the highest absorbance in UV and visible region. The ammonia decomposition of Fe, Ni and Co co-doped TiO2 nanoparticle reached the highest value of 60 %/. |
| 저자 | Van-Quyet Nguyen, Bee Lyong Yang |
| 소속 | Kumoh National Institute of Technology (KIT) |
| 키워드 | <P>TiO2; photocatalytic</P> |
