引用本文:
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
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
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
Fe/MCM-41 as a promising heterogeneous catalyst for ozonation of p-chlorobenzoic acid in aqueous solution
摘要:
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.
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关键词:
- Fe/MCM-41
- / Catalytic ozonation
- / p-Chlorobenzoic acid
- / TOC
English
Fe/MCM-41 as a promising heterogeneous catalyst for ozonation of p-chlorobenzoic acid in aqueous solution
Abstract:
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.
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Key words:
- Fe/MCM-41
- / Catalytic ozonation
- / p-Chlorobenzoic acid
- / TOC
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