Room temperature removal of high-space-velocity formaldehyde boosted by fixing Pt nanoparticles into Beta zeolite framework.

Xiaoling Liu, Yitong Liu, Yue Wu, Shan Dong, Guoqin Qi, Cailing Chen, Shibo Xi, Pan Luo, Yihu Dai, Yu Han, Yu Zhou, Yu Guo, Jun Wang

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Catalytic oxidation of volatile organic compounds like formaldehyde (HCHO) over the noble metals catalysts at room temperature is among the most promising strategies to control indoor pollution but remains one challenge to maximize the efficiency of noble metal species. Herein, we demonstrated the straightforward encapsulation of highly dispersive Pt nanoparticles (NPs) within BEA zeolite and adjacent with the surface hydroxyl groups to reach the synergistic HCHO oxidation at 25 °C. High efficiency and long-term stability was reached under large space velocity (∼100% conversion at 180,000 mL (gcat × h)-1 and >95% at 360,000 mL (gcat × h)-1), affording rapid elimination rate of 129.4 μmol (gPt × s)-1 and large turnover frequency of 2.5 × 10-2 s-1. This is the first synergy example derived from the hydroxyl groups and confined noble metals within zeolites that accelerated the rate-determining step, the formate transformation, in the HCHO elimination.
Original languageEnglish (US)
Pages (from-to)131848
JournalJournal of hazardous materials
Volume458
DOIs
StatePublished - Jun 17 2023

Bibliographical note

KAUST Repository Item: Exported on 2023-06-22
Acknowledgements: The authors thank for the funding from the National Natural Science Foundation of China (grants. 22178162, 22072065, and 22222806), the Distinguished Youth Foundation of Jiangsu Province (BK20220053), the Six talent peaks project in Jiangsu Province (JNHB-035), and State Key Laboratory of Materials-Oriented Chemical Engineering-Open Fund (KL20-07). The computational resources generously provided by the High-Performance Computing Center of Nanjing Tech University are greatly appreciated.

ASJC Scopus subject areas

  • Environmental Chemistry
  • Pollution
  • Environmental Engineering
  • Health, Toxicology and Mutagenesis
  • Waste Management and Disposal

Fingerprint

Dive into the research topics of 'Room temperature removal of high-space-velocity formaldehyde boosted by fixing Pt nanoparticles into Beta zeolite framework.'. Together they form a unique fingerprint.

Cite this