| 학회 |
한국화학공학회 |
| 학술대회 |
2019년 가을 (10/23 ~ 10/25, 대전컨벤션센터) |
| 권호 |
25권 2호, p.2012 |
| 발표분야 |
촉매 및 반응공학 (Catalysis and Reaction Engineering) |
| 제목 |
The effect of g-C3N4 precursors on photocatalytic activity enhancement of water-dispersible porous g-C3N4 photocatalysts |
| 초록 |
At present, graphitic carbon nitride (g-C3N4) is considered as one of the most well-known metal-free photocatalyst. g-C3N4 can be prepared using nitrogen-rich precursors such as dicyandiamide (DCDA), melamine, urea and thiourea. In this study water-dispersible porous g-C3N4 photocatalyst were prepared from bulk g-C3N4 by a chemical oxidation method and their photocatalytic activity was examined under visible-light irradiation. Bulk g-C3N4 was obtained by different precursors in a muffle furnace at 550oC for 4 hours under air condition. Properties of bulk and porous g-C3N4 materials were characterized by FE-SEM, XRD, FT-IR, XPS, BET and UV-Vis absorption spectra. Porous g-C3N4 photocatalyst showed a high photocatalytic degradation rate of methylene blue than bulk g-C3N4. The improvement of adsorption ability in porous g-C3N4 are responsible for the high photocatalytic activity of porous g-C3N4. Moreover, the existence of sulfur in thiourea caused the different interaction in the preparation, resulting in a high activity. |
| 저자 |
웬티킴안1, 신은우2, Pham Thanh-Truc3
|
| 소속 |
1울산대, 2울산 대, 3HCMC Univ. of Technology and Education |
| 키워드 |
촉매 |
| E-Mail |
|
| 원문파일 |
초록 보기 |
