期刊
JOURNAL OF CATALYSIS
卷 331, 期 -, 页码 172-180出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcat.2015.08.011
关键词
Photocatalysis; Zinc oxide; Carbon materials; Composites; Phenol
资金
- FEDER (Fundo Europeu de Desenvolvimento Regional) through ON2 (Programa Operacional do Norte) [NORTE-07-0202-FEDER-038900 (NEPCAT)]
- FCT (Fundacao para a Ciencia e a Tecnologia)/MEC [UID/EQU/50020/2013]
- FEDER [PT2020]
- QREN [NORTE-07-0124-FEDER-000015]
- ON2
- FEDER
- FCT [SFRH/BD/79878/2011]
- FCT Investigator Program [IF/01501/2013, IF/00514/2014]
- European Social Fund
- Human Potential Operational Program
- [NORTE-07-0162-FEDER-000050]
- Fundação para a Ciência e a Tecnologia [SFRH/BD/79878/2011] Funding Source: FCT
ZnO synthesized by chemical vapor deposition (CVD) was combined with different carbon nanomaterials namely nanotubes, nanofibers, nanodiamonds, fullerene and graphene. The materials were characterized by physical adsorption of nitrogen, diffuse reflectance, UV-Vis and photoluminescence (PL) spectroscopies, transmission electron microscopy and temperature programmed desorption. The photocatalytic efficiency of the resulting carbon/ZnO composites was evaluated for phenol degradation under simulated solar light irradiation. In general, the carbon materials enhance the efficiency of ZnO, and the composite containing nitrogen-doped carbon nanotubes (N-CNT/ZnO) showed the highest photocatalytic activity. An increase of 100% in the apparent first order rate constant for phenol degradation was achieved when using N-CNT/ZnO instead of bare ZnO. PL spectra confirmed the presence of efficient electron transfer between the carbon phase and the ZnO with a maximum quenching of ZnO PL emission in the presence of N-CNT. Both ZnO and N-CNT/ZnO show high stability after four reuses. (C) 2015 Elsevier Inc. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据