TY - JOUR
T1 - Room temperature removal of high-space-velocity formaldehyde boosted by fixing Pt nanoparticles into Beta zeolite framework.
AU - Liu, Xiaoling
AU - Liu, Yitong
AU - Wu, Yue
AU - Dong, Shan
AU - Qi, Guoqin
AU - Chen, Cailing
AU - Xi, Shibo
AU - Luo, Pan
AU - Dai, Yihu
AU - Han, Yu
AU - Zhou, Yu
AU - Guo, Yu
AU - Wang, Jun
N1 - 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.
PY - 2023/6/17
Y1 - 2023/6/17
N2 - 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.
AB - 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.
UR - http://hdl.handle.net/10754/692683
UR - https://linkinghub.elsevier.com/retrieve/pii/S0304389423011317
U2 - 10.1016/j.jhazmat.2023.131848
DO - 10.1016/j.jhazmat.2023.131848
M3 - Article
C2 - 37336111
SN - 0304-3894
VL - 458
SP - 131848
JO - Journal of hazardous materials
JF - Journal of hazardous materials
ER -