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SCIE ArticleNovel visible light active graphitic C3N4-TiO2 composite photocatalyst: Synergistic synthesis, growt
|Author||Sridharan, Kishore; Jang, Eunyong; Park, Tae Joo|
|Corresponding Author Info||Park, Tae Joo (박태주, 재료화학공학과)|
|Source||APPLIED CATALYSIS B-ENVIRONMENTAL 2013, 142, 718-728|
|Times Cited||140 (17.08.28.기준)|
|Abstract||- 7월/8월 2016부로, 이 인용 빈도가 높은 논문의 인용 횟수가 분야와 출판 연도에 대해 Chemistry 관련 학술 분야에서 상위 1%에 올랐습니다.
- 출판연도: OCT-NOV 2013
Novel visible light active graphitic carbon nitride TiO2 (g-C3N4-TiO2) composite photocatalyst is prepared through a thermal transformation methodology. C and N co-doped TiO2 (TGU) microspherical nanorods, were prepared initially by hydrothermal process, using urea and D-glucose as the dopant precursors. Pyrolysis of TGU at 300 degrees C in open air, transformed it to g-C3N4-TiO2 (TCN) composite. Structural and morphological characterization on TCN composites, using X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDS) and transmission electron microscopy (TEM), reveals the growth of g-C3N4 (CN nanosheets) on doped TiO2. Plausible growth mechanism is predicted based on the morphological investigations. Band gap energy of the samples was estimated using UV-vis diffuse reflectance (DRS) spectroscopy and TCN composites were found to be active under visible light. Efficiency of the prepared samples were investigated by monitoring the degradation of Methylene Blue (MB) and by the reduction of Cr(VI) ions. Improved photocatalytic activity in TCN is observed owing to the formation of a synergistic heterojunction, which facilitates a fast electron transfer at the interface between CN and doped TiO2. Visible light absorption capability of both CN and doped TiO2, complements the synergy factor. This synergistic approach, could prove useful for the design and development of other visible light active photocatalysts with high chemical stability.
|Web of Science Categories||Chemistry, Physical; Engineering, Environmental; Engineering, Chemical|