TY - JOUR
ID - 10.1016/j.jes.2021.01.033
TI - Synergistic effect of Pt nanoparticles and micro-mesoporous ZSM-5 in VOCs low-temperature removal
AU - Jialu Wang
AU - Xiaolin Guo
AU - Yijun Shi
AU - Renxian Zhou
VL - 33
IS - 9
PB -
SP - 87
EP - 97
PY -
JF - Journal of Environmental Sciences
JA - J. Environ. Sci.
UR - http://www.jesc.ac.cn/jesc_en/ch/reader/view_abstract.aspx?file_no=S100107422100036X&flag=1
KW - Corresponding author.;Pt/ZSM-5 catalysts;Micro-mesoporous ZSM-5;VOC oxidation;Synergistic effect
AB - Micro-mesoporous ZSM-5 zeolites were obtained by the post-treatment of tetrahydroxy ammonium hydroxide (TPAOH) solution with different concentration. The hierarchical pore structure formed during the desilication process facilitates the dispersion of Pt nanoparticles and Pt/ZSM-5 catalysts exhibit rather high catalytic activity for the deep oxidation of various VOCs at low temperature. The catalyst treated with TPAOH of 0.1 mol/L (Pt/ZSM-5(0.1)) shows the lowest degradation temperature (T90%) of 128 and 142°C, respectively for benzene and n-hexane. Compared with the untreated Pt/ZSM-5 catalyst, the abundant mesopores, small Pt particle size and finely dispersed Pt contribute to the superior catalytic activity and stability of the Pt/ZSM-5 catalysts for VOCs removal. More importantly, the existence of H2O in the feed gases hardly affected the activity of Pt/ZSM-5(0.1) catalyst at the low reaction temperature of 128°C, which is very important for VOCs low-temperature removal in the future practical applications.
ER -