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Study on the Macro‐Kinetics of NO Advanced Oxidation Removal by Decomposition of Gas‐Phase H 2 O 2 over γ‐Fe 2 O 3 @Fe 3 O 4
Author(s) -
Yang Siyuan,
Xiong Yuanquan,
He Shanshan
Publication year - 2019
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201901142
Subject(s) - maghemite , kinetics , magnetite , decomposition , flue gas , activation energy , catalysis , chemistry , x ray photoelectron spectroscopy , chemical kinetics , order of reaction , analytical chemistry (journal) , phase (matter) , inorganic chemistry , materials science , reaction rate constant , chemical engineering , metallurgy , physics , environmental chemistry , organic chemistry , quantum mechanics , engineering
Mixed maghemite–magnetite (γ‐Fe 2 O 3 @Fe 3 O 4 ) has been used as catalyst for NO advanced oxidation removal under various conditions such as the reaction temperature, the feeding rate of H 2 O 2 and the SO 2 concentration in this study. The result of macro‐kinetics experiments indicate that the reaction order of NO from simulated flue gas is 1.06(CU) and 1.11(HM), respectively. The obtained first‐order activation energy for the NO removal in the presence of CU and HM were Ea=49.87KJ/mol and Ea=30.06KJ/mol, respectively. The XPS results prove that surface hydroxyl groups play an important role in the formation of •OH.