Open AccessSynergistic Catalytic Effects of Fe-Based Bimetallic Nanocatalyst and Non-thermal Plasma on Removal of Acetaldehyde
Author(s) -
Xiaoying Peng,
Yan Gao,
Zhanchao Zhang,
Wenke Zhang,
Hui Li
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/621/1/012119
Subject(s) - bimetallic strip , nanomaterial based catalyst , bimetal , catalysis , acetaldehyde , selectivity , chemical engineering , materials science , chemistry , mesoporous material , inorganic chemistry , organic chemistry , metallurgy , engineering , ethanol
Acetaldehyde is a typical volatile organic compound (VOC) releasing from food waste. Fe-based bimetallic nanocatalyst combined with non-thermal plasma (NTP) for acetaldehyde catalytic oxidation is an high efficient and energy-saving method. The pore structure parameters of FeCoO x TiO 2 , FeCeO x TiO 2 and FeMnO x TiO 2 bimetal nanocatalysts were analyzed quantitatively by N 2 adsorption-desorption test. The phase composition and active element valence of three Fe-based bimetallic nanocatalysts were analyzed and compared by XRD. The experimental data showed the microporous and mesoporous structures of FeCoO x bimetal oxides were more complete, and the elemental dispersibility was better. In the non-thermal plasma-catalyst (NTPC) system, the introduction of Fe-based bimetallic nanocatalyst significantly improved the catalytic efficiency of acetaldehyde and catalytic selectivity of CO 2 . FeCoO x TiO 2 had the best performance among these three nanocatalysts with acetaldehyde catalytic conversion rate reaching 87.5% and CO 2 .selectivity higher than 90%, under the specific energy density (SPD) of 180 J. L -1 , which was less than half of the energy consumption in a single non-thermal plasma catalytic reaction. By optimizing the microstructure and elemental composition of Fe-based bimetallic nanocatalyst, it is expected to be an effective method to improve catalytic performance, which is also a promising approach for improving VOCs removal efficiency and reducing energy consumption.