期刊
APPLIED SURFACE SCIENCE
卷 358, 期 -, 页码 313-318出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2015.07.213
关键词
g-C3N4; TiO2; Preparation conditions; Photocatalytic degradation; Rhodamine B
类别
资金
- National Science Foundation of China [21203254, 21377031]
- Science and Technology Activities of Overseas Personnel Preferential Funding Project [BZY14038]
- Natural Science Foundation of Hubei Province of China [2015CFA138]
- Guangdong Province Science and Technology Plan projects [20138020800009]
Photocatalytic performances of g-C3N4 based materials prepared under different conditions for rhodamine B (RhB) degradation in aqueous solution were investigated, with the aim of optimizing the precursor, the thermal treatment atmosphere, the g-C3N4 loading and the oxide support. Characterizations such as XRD, TGA, N-2 physisorption, UV-Vis, SEM, TEM and PL indicated that the assumed materials with expected properties were prepared. Catalytic tests showed that sample prepared using dicyandiamide as precursors, TiO2 as support, thermal treatment in N-2 atmosphere, and at mass ratio of dicyandiamide to TiO2 equals to 0.75:1 are the best conditions of preparing active g-C3N4 based materials for the reaction, which could be attributed to a suitable surface chemistry and an optimum synergistic effect between g-C3N4 and TiO2 under these conditions. (C) 2015 Elsevier B.V. All rights reserved.
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