期刊
CATALYSIS TODAY
卷 161, 期 1, 页码 189-195出版社
ELSEVIER
DOI: 10.1016/j.cattod.2010.09.020
关键词
Photocatalysis; Hydrocarbons; Methane; Acetic acid; Fe/TiO2
资金
- Polish Ministry of Science and Higher Education [N N523 413435]
A photocatalytic generation of useful hydrocarbons and hydrogen from acetic acid under N-2 atmosphere is presented. The photocatalysts were prepared from a crude TiO2 modified with Fe(NO3)(3) and calcinated at the temperatures of 400-600 degrees C in argon atmosphere. The main gaseous products of CH3COOH decomposition were CH4 and CO2. Moreover, ethane, propane and hydrogen were also detected. The most active photocatalyst towards CH4 generation was TiO2 containing 20 wt.% of Fe calcinated at 500 degrees C. The optimum loading of this photocatalyst was 1 g/dm(3). After 5 h of the process the amount of CH4, CO2, C2H6, C3H8 and H-2 evolved was 0.458, 0.450, 0.025, 0.003 and 0.013 mmol, respectively. An increase of CH3COOH concentration from 0.01 to 1 mol/dm(3) resulted in an increase of methane production. A further increase of CH3COOH concentration up to 10 mol/dm(3) led to a decrease of the process efficiency. The stability of the prepared photocatalysts against photocorrosion was very high. The amount of dissolved Fe did not exceed 0.17 wt.% of the total Fe present in a catalyst sample. (c) 2010 Elsevier B.V. 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