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Vol. 25 No. 16 (2013): Vol 25 Issue 16

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Influences of Pore Sizes on the Catalytic Activity of Fe-MCM-41 in Hydroxylation of Phenol

https://doi.org/10.14233/ajchem.2013.15007
Bing Han
School of Material Engineering, Nanjing Institute of Technology, Nanjing 211167, P.R. China ; China State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing University of Technology, Nanjing 210009, P.R. China
Xiaobo Shi
China State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing University of Technology, Nanjing 210009, P.R. China
Yingjie Zhang
China State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing University of Technology, Nanjing 210009, P.R. China
Qinghu Kong
China State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing University of Technology, Nanjing 210009, P.R. China
Qinglin Sun
China State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing University of Technology, Nanjing 210009, P.R. China
Yan Kong
China State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing University of Technology, Nanjing 210009, P.R. China

Corresponding Author(s) : Yan Kong

kongy36@njut.edu.cn

Asian Journal of Chemistry, Vol. 25 No. 16 (2013): Vol 25 Issue 16

Abstract

A series of Fe-MCM-41 with different pore sizes were synthesized by changing alkyl chain lengths of surfactants and the properties of the pore structures were characterized by XRD, BET, TEM and UV-visible techniques. The results show that the pore size, pore volume, a0 and regularity of Fe-MCM-41 increase as alkyl chain lengths of surfactants increase, while the content and the coordination state of iron species in catalysts remain constant. The pore sizes of Fe-MCM-41s have an important effect on their catalytic activity in the direct hydroxylation of phenol by H2O2. The conversion of phenol decreases as the pore sizes become larger, whereas the selectivity of diphenol rises.

Keywords

Fe-MCM-41 Pore sizes Phenol Hydroxylation
Han, B., Shi, X., Zhang, Y., Kong, Q., Sun, Q., & Kong, Y. (2013). Influences of Pore Sizes on the Catalytic Activity of Fe-MCM-41 in Hydroxylation of Phenol. Asian Journal of Chemistry, 25(16), 9087–9091. https://doi.org/10.14233/ajchem.2013.15007
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