Improving MCM-41 as a nitrosamines trap through a one-pot synthesis.
Copper oxide was incorporated into MCM-41 by a one-pot synthesis under acidic conditions to prepare a new mesoporous nitrosamines trap for protection of the environment. The resulting composites were characterized by XRD, N2 adsorption-desorption, and H2 temperature-programmed reduction techniques, and their adsorption capabilities were assessed in the gaseous adsorption of N-nitrosopyrrolidine (NPYR). The adsorption isotherms were consistent with the Freundlich equation. The copper salt was deposited onto MCM-41 during the evaporation stage and was fixed on the host in the calcination process that followed. MCM-41 was able to capture NPYR in air below 373 K but not at 453 K. Loading of copper oxide on MCM-41 greatly improved its adsorption capability at elevated temperatures. The influence of the incorporation of copper into MCM-41 samples and the adsorption behavior of these samples are discussed in detail.
Xu
Jia Hui
JH
Key Laboratory of Mesoscopic Chemistry of the MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China.
Zhuang
Ting Ting
TT
Cao
Yi
Y
Yang
Jing
J
Wen
Jing Jia
JJ
Wu
Zheng Ying
ZY
Zhou
Chun Fang
CF
Huang
Li
L
Wang
Ying
Y
Yue
Ming Bo
MB
Zhu
Jian Hua
JH