| 학회 |
한국화학공학회 |
| 학술대회 |
2017년 봄 (04/26 ~ 04/28, ICC 제주) |
| 권호 |
23권 1호, p.1175 |
| 발표분야 |
촉매 및 반응공학 |
| 제목 |
Visible Light Active Cuxo Muffled Rhodium-Antimony Co-Doped TiO2 Nanorods Photocatalyst Synthesized By Molten Salt Flux Route: Photocatalytic Degradation of Orange (II) Dye |
| 초록 |
In this work, effect of CuxO impregnation on acid treated and non-treated, rhodium and antimony co-doped rutile-type TiO2 nanorod (Rh-Sb co-doped TiO2NR) photocatalysts were studied comprehensively. The photocatalysts have been characterized by FESEM, XRD, EXAFS, UV-DRS and XPS. EXAFS conformed that the doping of Rh and/or Sb into TiO2 does not change the symmetric environment around a titanium atom. The band gap energy of acid treated co-doped sample was observed at 2.06eV in the visible light region. Under the visible light irradiation of λ ≥ 420 nm, CuxO loaded acid treated Rh-Sb co-doped sample showed higher photocatalytic Orange (II) dye degradation activity in comparison of TiO2 doped with Rh and/or Sb samples. The maximum photocatalytic degradation efficiency of 97% was achieved for 2wt% of CuxO loaded acid treated co-doped sample. The fine dispersion of small copper nanoparticles were identified through TEM and STEM analysis. We also discussed the mechanism of enhanced photocatalytic activity based on their copper loading. |
| 저자 |
Dhandole Love Kumar1, 장점석2, 김수경2, Mahadeo A. mahadik2, 정희석3, 이수영4, 최선희4
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| 소속 |
1CBNU, 2전북대, 3KBSI, 4POSTECH |
| 키워드 |
촉매 및 반응공학 |
| E-Mail |
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| 원문파일 |
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