| Title: | Room temperature removal of high-space-velocity formaldehyde boosted by fixing Pt nanoparticles into Beta zeolite framework |
| Author(s): | Liu X; Liu Y; Wu Y; Dong S; Qi G; Chen C; Xi S; Luo P; Dai Y; Han Y; Zhou Y; Guo Y; Wang J; |
| Address: | "State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China. Advanced Membranes and Porous Materials Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia. Institute of Sustainability for Chemicals, Energy and Environment, A?n-STAR (Agency for Science, Technology and Research), 1 Pesek Road, Jurong Island, Singapore 627833, Singapore. Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China. State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China. Electronic address: njutzhouyu@njtech.edu.cn. State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China. Electronic address: mguoyu@njtech.edu.cn. State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China. Electronic address: junwang@njtech.edu.cn" |
| DOI: | 10.1016/j.jhazmat.2023.131848 |
| ISSN/ISBN: | 1873-3336 (Electronic) 0304-3894 (Linking) |
| 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 degrees C. High efficiency and long-term stability was reached under large space velocity ( approximately 100% conversion at 180,000 mL (g(cat) x h)(-1) and >95% at 360,000 mL (g(cat) x h)(-1)), affording rapid elimination rate of 129.4 mumol (g(Pt) x s)(-1) and large turnover frequency of 2.5 x 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" |
| Keywords: | Formaldehyde oxidation Heterogeneous catalysis Noble metal nanoparticles Synergy effect Zeolite; |
| Notes: | "PubMed-not-MEDLINELiu, Xiaoling Liu, Yitong Wu, Yue Dong, Shan Qi, Guoqin Chen, Cailing Xi, Shibo Luo, Pan Dai, Yihu Han, Yu Zhou, Yu Guo, Yu Wang, Jun eng Netherlands 2023/06/20 J Hazard Mater. 2023 Sep 15; 458:131848. doi: 10.1016/j.jhazmat.2023.131848. Epub 2023 Jun 14" |
