Volume 41, Issue 11 pp. 2203-2211
Research Article

Removal of NO from Flue Gas by a Heterogeneous Fenton-Like Process

Yi Zhao

Corresponding Author

Yi Zhao

North China Electric Power University, School of Environmental Science and Engineering, No. 2, Beinong Road, 102206 Beijing, China

Correspondence: Yi Zhao ([email protected]), North China Electric Power University, School of Environmental Science and Engineering, No. 2, Beinong Road, 102206 Beijing, China.Search for more papers by this author
Yuhong Han

Yuhong Han

North China Electric Power University, School of Environmental Science and Engineering, No. 2, Beinong Road, 102206 Beijing, China

Hebei University, College of Physics Science and Technology, No. 180, Wusi East Road, 071002 Baoding, China

Search for more papers by this author
Zheng Zhao

Zheng Zhao

Hebei Environmental Monitoring Center, No. 30, Yaqing Street, 050000 Shijiazhuang, China

Search for more papers by this author
First published: 24 August 2018
Citations: 11

Abstract

An iron-containing polyoxometalates (POMs) complex (FeIIIAspPW) was synthesized from ferric chloride, aspartic acid, and phosphotungstic acid for developing a novel method based on a Fenton-like process using Fe-containing POMs as heterogeneous catalyst to remove NO from flue gas. The effects of various experimental parameters on NO removal efficiency were evaluated in a self-made bubbling reactor. Under optimized conditions, an average removal efficiency of > 90 % was obtained. The dominant reactive species generated in the system was suggested to be OH by adding the OH quenching agent of tert-butanol and the main reaction product was identified as nitrate. A possible catalytic mechanism was proposed on the basis of experimental results and references. The catalysis might result from the redox cycles of ≡FeIII↔≡FeII and ≡POM↔≡POM on the surface of FeIIIAspPW, and the high catalytic activity of FeIIIAspPW might be attributed to the chemisorption of H2O2 on its surface by hydrogen bonding.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.