Citation: Rui Huan Huang, Jie Liu, Lai Sheng Li, Qiu Yun Zhang, Li Xuan Zeng, Ping Lu. Fe/MCM-41 as a promising heterogeneous catalyst for ozonation of p-chlorobenzoic acid in aqueous solution[J]. Chinese Chemical Letters, ;2011, 22(6): 683-686. doi: 10.1016/j.cclet.2010.11.037 shu

Fe/MCM-41 as a promising heterogeneous catalyst for ozonation of p-chlorobenzoic acid in aqueous solution

School of Chemistry & Environment, South China Normal University, Guangzhou 510006, China

Received Date: 12 October 2010

Fund Project: The authors are grateful for the financial support from National Natural Science Foundation of China (No.20977036)

Mesoporous MCM-41 and Fe loaded MCM-41(Fe/MCM-41), which were successfully prepared by a hydrothermal method and a dipping method respectively, were applied as heterogeneous catalysts for ozonation of p-chlorobenzoic acid(p-CBA)in aqueous solution.MCM-41 and Fe/MCM-41 were characterized by XRD, FT-IR and diffuse reflectance UV-vis(DR-UV-vis)techniques.The presence of either MCM-41 or Fe/MCM-41 improves p-CBA and total organic carbon(TOC)removal efficiency compared to ozonation alone.Under the experimental condition, TOC removal rate of Fe/MCM-41/O₃ process is over 63.5% at 60 min oxidation time, 44.5% using MCM-41 as catalyst, only 37.7% with ozonation alone.The presence of /erf-butanol(TBA)in the Fe/MCM-41/ O₃ process indicated that the oxidation mechanism of ρ-CBA occurs via OH in the liquid bulk.And Fe/MCM-41 is a promising catalyst.
- Fe/MCM-41,
- Catalytic ozonation,
- p-Chlorobenzoic acid,
- TOC
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