Journal
APPLIED SURFACE SCIENCE
Volume 442, Issue -, Pages 195-203Publisher
ELSEVIER
DOI: 10.1016/j.apsusc.2018.02.121
Keywords
Strong-base catalytic system; Formaldehyde oxidation; Room temperature; Surface electron structure; H2O tolerance
Categories
Funding
- National Natural Science Foundation of China [51462002, 11765002]
- Graduate Research Foundation of ECUT [YC2016-S282]
- Foundation of State key Laboratory Breeding Base of Nuclear Resources and Environment [Z201408, Z1604]
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Solid strong base nano-catalytic system of K-modification NaY zeolite supported 0.08% Pt (K-Pt/NaY) were constructed for eliminating HCHO at room temperature. In the catalytic process, activation energy over K-Pt/NaY nano-catalytic system was greatly decreased along with the enhanced reaction rate. Characterization and catalytic tests revealed the surface electron structure of K-Pt/NaY was improved, as reflected by the enhanced HCHO adsorption capability, high -OH concentration, and low-temperature reducibility. Therefore, the optimal K-Pt/NaY showed high catalytic efficiency and strong H2O tolerance for HCHO elimination by directly promoting the reaction between active -OH and formate species. These results may suggest a new way for probing the advanced solid strong base nano-catalytic system for the catalytic elimination of indoor HCHO. (C) 2018 Elsevier B.V. All rights reserved.
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